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88 Genitourinary Trauma
283
– Diagnosed on a CT urogram, which is a CT abdomen/
pelvis with a delayed excretory phase, or by direct examination during an exploratory laparotomy (Lewis
2023)
• What are the three segments of the ureter? – Proximal includes the portion of the ureter above the
iliac bifurcation (Lewis 2023).
– Mid portion includes the ureter located between the
iliac bifurcation and pelvic brim (Lewis 2023).
– Distal includes the portion of the ureter below the pel-
vic brim (Peitzman etal. 2020).
• What is the management of ureteral injury? – Management of a ureteral injury is dependent upon the
segment of the ureter that is injured, the amount of the ureter that is injured, and the condition of the patient (Lewis 2023).
– Operative repair is usually indicated and there is a lim-
ited role for nonoperative management (Lewis 2023).
– If the patient is unstable and undergoing a damage
control laparotomy, then you can ligate the ureter or create a cutaneous ureterostomy, and denitive man­agement can be deferred (Peitzman etal. 2020). The patient can undergo percutaneous nephrostomy diver­sion or retrograde ureteropyelography and stenting when the patient is more stable (Lewis 2023).
• Basics of repair include (Peitzman etal. 2020): – Debridement of devitalized tissue – Proximal and distal mobilization – Spatulation of the ureter – Tension-free repair – Stenting the ureter – A watertight anastomosis – Bladder drainage
• Proximal injuries (Peitzman etal. 2020): – <2cm injury—primary repair (ureteroureterostomy) – Larger injuries may require more complex
reconstruction
• Mid portion injuries (Peitzman etal. 2020): – <2cm injury—primary repair – Longer segment injuries may require Psoas Hitch and
Boari ap
• Distal injuries: – Ureteral reimplantation into the bladder – Longer segment injuries may require Psoas hitch and/
or Boari ap
• What is a helpful adjunct to detect GU injuries if not obvi-
ous during laparotomy injecting methylene blue may help identify injuries

Clean Kills

• Not systematically completing your trauma assessment
• Missing other injuries, including outside the abdominal cavity or within the abdominal cavity
• Placing a urinary catheter in a patient with an intraperito­neal injury
• Taking the time to repair a ureteral injury in an unstable patient.
• Managing a patient with a low-grade kidney injury who is hemodynamically unstable in the ICU and not taking them to the operating room.

Bonus Points

• Remember to study the extraperitoneal urinary bladder injury after placement of a foley catheter with a CT cysto­gram in 10–14days.
• If you have a urethral injury with disruption, the standard recommendation is to surgically place a suprapubic cys­tostomy tube. Attempts can initially be made at early endoscopic or non-endoscopic urethral realignment, and Foley catheter placement, but such attempts should not be overly prolonged to avoid contamination and extravasa­tion. If unsuccessful, a suprapubic tube should be placed with the expectation that a delayed urethroplasty will likely be needed.
Words ofWisdom
Although the incidence of mortality is low with GU trauma, it is important to have a high index of suspicion of injury to be able to order adequate studies and interpret them to fur­ther guide management. Initial treatment and early recogni­tion of injuries will decrease the incidence of sepsis and will lower the incidence of morbidity.

Bibliography

Leslie SW, Nelson Q, Baker J.Urethral injury [Updated 2023 Jul 24].
In: StatPearls [Internet]. Treasure Island: StatPearls Publishing;
2023. https://www.ncbi.nlm.nih.gov/books/NBK554575/.
Lewis M. Genitourinary trauma. 2023. https://www.surgicalcore.org/
modulecontent.aspx?id=1000738. Accessed 27 Aug 2023.
Peitzman AB, Yealy DM, Fabian TC, Schwab CW. Trauma and acute
care surgery. 5th ed. Philadelphia: Wolters Kluwer; 2020.

Liver Trauma

DevonPace andGeorgeJ.Koenig Jr
89
Way Questions May BeAsked?
A 33-year-old man with no known medical history presents to the trauma bay after a high-speed motor vehicle accident as a restrained driver. His blood pressure on arrival is 80/60, with a heart rate of 125. What would you like to do?
Way toAnswer?
• Initiate the evaluation with Advanced Trauma Life Support (ATLS) primary survey (ABCDEs)
– Be sure to evaluate for injuries requiring urgent man-
agement (i.e., pneumothorax, hemothorax, etc.).
• Ensure adequate access with at least two large bore IVs (18 gauge or larger at the antecubital or above) and resus­citate with blood products.
– Key step: you will be faced with a decision on deter-
mining whether the patient is a responder, transient responder, or nonresponder to resuscitation.
• Responder
– Continue the evaluation, including a secondary survey
with a head-to-toe exam highlighting specic regions of interest based on the history, including the neck, chest, abdomen, and pelvis.
For example, you do not want to miss a concomi­tant cervical spine injury or open-book pelvic fracture. Be sure to obtain your laboratory (CBC, CMP, lac­tate, lipase, coags, and type and screen) and imag­ing (CXR, pelvic XR, FAST) adjuncts. FAST assists with cavitary triage in patients with hemodynamic instability.
– Proceed with secondary imaging studies based on
injury patterns as well as cross-sectional imaging (CT
D. Pace · G. J. Koenig Jr (*) Department of Surgery, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA e-mail: Devon.Pace@jefferson.edu; George.Koenig@jefferson.edu
head, cervical spine, chest, abdomen, and pelvis) to evaluate the extent of injuries.
– If solid organ injury is identied and there is no evi-
dence of active extravasation or blush of contrast, then you should consider non-operative management.
• Transient responder
– Continue the evaluation, including a secondary survey
with a head-to-toe exam. – Be sure to obtain your laboratory and imaging adjuncts. – Ensure continued response to resuscitation and con-
sider obtaining cross-sectional imaging to identify the
type of injury. – If solid organ injury with active extravasation or blush
of contrast, then we may consider interventional radi-
ology for angioembolization.
• Non-responder
– The operative strategy will be based on the type of
injury (laparotomy for patients with positive eFAST,
peritonitis, or penetrating abdominal injuries). – Be sure to obtain your laboratory and imaging adjuncts.

Management Options

• Non-operative management – Indicated for patients with low-grade liver injuries or
those who respond to resuscitation without active extravasation on CT.
– Admit these patients to a monitored bed (ICU versus
step-down), bedrest for at least 24h, NPO, IV uids versus blood products, and trend serial hemoglobins until stable.
– May additionally perform serial abdominal exams and
have a low threshold to explore the patient operatively or consider angiography with evolving vitals, hemo­globins, product requirement, or exams.
• IR (Interventional Radiology) angiography management – Depending on the scenario, it may not be an available
option but should still be mentioned if the patient meets the criteria.
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_89
285
286
D. Pace and G. J. Koenig Jr
– However, may consider angiography and embolization
in patients with signicant liver injuries (active extrav­asation, large injuries, and/or pseudoaneurysms) who are transient responders to resuscitation.
• Operative management – Indicated for patients not responsive to resuscitation,
those with signicant injuries, and those without IR availability.

Surgical Management

To reiterate, it is unlikely you will encounter an isolated liver injury scenario but a scenario requiring a laparotomy with multiple intra-abdominal injuries that need to be managed including a liver injury requiring hemostatic management techniques.
1. Prep the patient from chin to knees
2. Make a generous midline incision from the xiphoid to the pubis
3. Upon opening the abdomen, pack all four quadrants with laparotomy/trauma pads to allow anesthesia to catch up in resuscitation attempts
4. Perform a rapid abdominal survey and be sure to control any intestinal spillage by quick transection of injured bowel or primary repair for minor injuries (more specic to penetrating abdominal injuries)
5. Carefully remove pads from quadrants in a clockwise fashion and control bleeding
(a) For penetrating injuries, evaluate the specic quad-
rant of interest last
6. For more complex injuries, may consider asking for a transplant surgeon or hepatobiliary surgeon for assis­tance, although this will likely be unavailable
7. May require mobilization of the liver by division of the falciform and triangular/coronary ligaments
8. Always place drains to control for a bile leak
9. Pay specic attention to patient stability intraoperatively and the possibility of transitioning to a “damage control” procedure if the patient remains hypothermic, acidotic, and coagulopathic
10. Place a temporary abdominal closure device with the intentions to re-explore the patient in 24 h once resuscitated
ponade bleeding (sandwich the liver). Typically requires 8–10 laparotomy pads.
2. Simple laceration (a) Direct pressure (b) Topical hemostatic agents (i.e., brin glue, brillar,
nu-knit)
(c) Monopolar electrocautery (Bovie), bipolar electro-
cautery (Aquamantys), or argon beam plasma coagulation
3. Deep laceration (a) Finger fracture and ligation of individual vessels (b) Suture hepatorrhaphy to injured area with a large
blunt-tipped liver needle
(c) Pack laceration with a vascularized tongue of omen-
tum and suture in place to Glisson’s capsule
4. Extensive injuries (bilobar, hepatic vein injury, retrohe­patic vena cava)
(a) Decide early to utilize a “damage control” strategy
with the placement of a temporary abdominal closure device
5. Maneuvers
(a) Pringle—access the lesser sac and place a straight
vascular clamp across the hepatoduodenal ligament to control bleeding or identify a hepatic/vena cava bleeding source. One can also use a Rumel tourni­quet for the Pringle maneuver.
• If bleeding stops, it indicates a hepatic artery or portal venous source (or both)
• If bleeding continues, it indicates a hepatic venous or retrohepatic inferior vena cava (IVC) source
(b) Atriocaval (Shrock) shunt—insertion of a 36-French
chest tube in the right atrium (secured with a purse string) and down to the suprarenal inferior vena cava (IVC) (secured with a Rumel tourniquet). One can also use an endotracheal tube, although it needs to have a side hole cut in it.
• Requires a median sternotomy and opening of the pericardium for access to the right atrium
(c) Total vascular isolation—placement of vascular
clamps across the hepatoduodenal ligament, infrahe­patic/suprarenal IVC, and suprahepatic IVC
• Generally, not well tolerated in trauma patients due to lack of venous return and limited cardiac output

Operative Hemostatic Techniques

1. General (a) Mobilize the liver (falciform and triangular liga-
ments) and pack anteriorly and posteriorly to tam-

Post-operative Management

• Admit to the ICU and continue balanced resuscitation efforts with serial labs and monitoring of hemodynamics
• Return to the OR in 12–36h, depending on the patient’s responsiveness to resuscitative efforts or lack thereof
89 Liver Trauma
287
• Consider initiation of broad-spectrum antibiotics if there is a concomitant bowel injury
• Once the patient is determined to be stable for abdominal closure, place drains in the perihepatic space to prevent biloma formation and infection
• Proactively obtain a hepatobiliary iminodiacetic acid (HIDA) scan at 72h post-injury for high-grade liver inju­ries to evaluate for bile leaks. If present, you should man­age with an endoscopic retrograde cholangiography (ERC), and stent placement and IR drain placement
• Consider transferring the patient to a higher level of care or a level 1 trauma center for further management once stable with an open abdomen and temporary closure device in place
Sample Scenario Dialogue
A 33-year-old man with no known medical history presents to the trauma bay after a high-speed motor vehicle accident as a restrained driver. His blood pressure on arrival is 80/60, with a heart rate of 125. What would you like to do?
“I’m concerned that the patient was involved in a major
accident and is at risk of numerous injuries in the head, chest, and abdomen. I’m going to start by initiating ATLS protocol and conrm the patient has a patent airway by asking them their name. If they respond appropriately then I would listen for breath sounds on both sides and if they were absent, then I would place a chest tube on the appropriate side. I would then evaluate for proximal and distal pulses while simultane­ously ensuring proper IV access for resuscitation which would include two large bore IVs at the antecubital or higher. During placement of IVs, I would obtain a full set of labs including a CBC, CMP, lactate, and coags. Given the patient’s mechanism of injury and hemodynamic status, I would start by resuscitating the patient with 2 units of whole blood. I would then assess the patient’s Glasgow Coma Scale score and completely expose the patient to assess for stigmata of a major injury, such as a seatbelt sign. Lastly, I would turn the patient to evaluate their back while maintaining cervical spine precautions to assess their back and then follow up on the patient’s response to resuscitation.”
Okay, the patient’s airway was patent. You noted there
were absent breath sounds on the left side and placed a chest tube, which put out 200mL of blood upon placement. The patient has both central and distal pulses, but their distal pulses feel weaker. You give the patient 2 units of blood, and their blood pressure improves to 90/65 and heart rate 115. You note a seatbelt sign is present on the chest and abdomen.
“I am still concerned that the patient may not have ade-
quately responded to resuscitation and I would continue resuscitating the patient with blood products while obtaining imaging adjuncts to assess for injuries requiring immediate management. I would obtain a CXR to evaluate for pneumo-
thorax or residual hemothorax after placement of the chest tube. I would obtain a pelvic x-ray to assess for a pelvic frac­ture that may require placement of a pelvic binder. I would perform a FAST exam to assess for intra abdominal free uid that may indicate an intra abdominal injury. If the adjuncts were negative and the patient was hemodynamically stable, then I would proceed with a secondary head-to-toe exam to assess for other injuries. If the FAST exam was positive for free uid in the abdomen and the patient remained non­responsive to resuscitation, then I would proceed to the oper­ating room for an exploratory laparotomy. If the FAST exam was positive but the patient was responsive to resuscitation, then I would obtain cross-sectional imaging including a CT head, cervical spine, chest, abdomen, and pelvis to assess for injuries. If at any point, the patient became unstable or I was concerned about their hemodynamics despite resuscitation, then I would proceed to the operating room.”
The patient remains hemodynamically unstable despite resuscitative attempts. The CXR demonstrates your chest tube is adequately in place without any evidence of pneumo­thorax or residual hemothorax. There is no pelvic fracture identied. On the FAST exam, you note uid in the hepatore­nal, splenorenal, and perivesicular spaces. You administer another 2 units of blood and the patient’s heart rate remains 120 and the blood pressure 90/60. How would you like to proceed?
“I’m concerned that the patient has an intra abdominal solid organ injury that requires operative management and would proceed to the operating room emergently for an exploratory laparotomy. I would ensure that the patient has adequate access and prep the patient from xiphoid to pubis with the groins exposed. I would make a generous midline laparotomy to enter the abdomen, and upon entry, I would sequentially pack all four quadrants with laparotomy pads. After packing the abdomen, I would allow time for anesthe­sia to catch up in resuscitation based on the patient’s response while evaluating the bowel for any injuries that may be ame­nable to suturing or transection, although bleeding would be my priority. I would then sequentially remove the packs from the lower quadrants rst to evaluate for any source of active hemorrhage. I would then remove the packs from the upper quadrants to assess for any injuries to the liver or spleen. If there was active bleeding from either of these organs, I would attempt to hold pressure rst, followed by topical hemostatic agents if this were to be unsuccessful. If there was continued bleeding from the liver, then I would take down the triangu­lar ligaments to mobilize the liver and sandwich the liver with laparotomy pads. If there is a signicant deep liver lac­eration with continued bleeding, I would consider nger fracturing and ligating any bleeding vessels present within the parenchyma. Meanwhile, I would continually assess the patient’s response to resuscitation and understand the potential that I may need to convert to a damage control lapa-
288
D. Pace and G. J. Koenig Jr
rotomy and place a temporary abdominal closure device to allow for time to resuscitate the patient.”
You perform an exploratory laparotomy and identify sig­nicant injuries to the spleen and liver. The spleen remains hemostatic after the placement of topicals, but the liver con­tinues to bleed despite local hemostatic attempts. What are some more advanced techniques you can use to identify the source of bleeding?
“If the liver continued to bleed despite attempts at local control, I would perform a Pringle maneuver to triage between the portal vein and hepatic vein or retrohepatic IVC as sources of bleeding. I would do this by placing a Rumel tourniquet around the hepatoduodenal ligament to occlude the portal vein. If the bleeding stops, then this indicates bleeding from a portal venous source. If the bleeding contin­ues, then this indicates a hepatic venous or retrohepatic IVC source of bleeding.”
Alternative Scenario Dialogue
The patient responds to initial resuscitation during the pri­mary survey.
Okay, the patient’s airway was patent. You noted there were absent breath sounds on the left side and placed a chest tube, which put out 200mL of blood upon placement. The patient has both central and distal pulses, but their distal pulses feel weaker. You give the patient 2 units of blood, and their blood pressure improves to 110/80 and heart rate 95. You note a seatbelt sign is present on the chest and abdomen.
“Given the patient is responsive to resuscitation, I would rst proceed with imaging adjuncts including a CXR and pelvic x-ray to assess for any additional injuries that may require immediate interventions, including a missed pneu­mothorax or hemothorax and an open book pelvic fracture requiring placement of a pelvic binder. I would then proceed with the secondary survey and perform a head-to-toe exam to assess for additional injuries. If the patient remained stable or responsive to resuscitation, I would proceed with cross­sectional imaging including a CT head, cervical spine, chest, abdomen, and pelvis to evaluate all injuries. If a high-grade solid organ injury was identied, then I would prioritize non­operative management and consider angiography with embolization if the patient were transiently responsive to resuscitation or if a pseudoaneurysm was present.”
You take the patient to CT and identify a grade III splenic injury and a grade IV liver injury with hemoperitoneum and possible intrahepatic extravasation of contrast. After CT, the patient’s blood pressure is 100/70 and heart rate is 110.
“Given the patient’s slight worsening in hemodynamics, I would administer another 2 units of blood products and con-
sult the interventional radiology team for angiography and embolization of any pseudoaneurysms or areas of active extravasation in either the spleen or liver.”
You take the patient to IR, and they identify and success­fully embolize a branch of the right hepatic artery that had active extravasation. How would you like to proceed?
“I would admit the patient to the intensive care unit and perform serial hemoglobin checks every 6h to ensure the patient’s blood counts remain stable. I would keep them NPO as they are resuscitated in the ICU.I would plan to per­form a HIDA scan 72h after injury to evaluate for a bile leak given the signicance of the liver injury. If a leak were pres­ent, I would again consult interventional radiology for drain placement and consult our gastroenterologists for endo­scopic retrograde cholangiography (ERC) with stent placement.”

Common Curveballs

• Hepatic pseudoaneurysm
– Development of large volume bright red rectal bleed-
ing or hematemesis
– CTA may demonstrate pseudoaneurysm, or ERC may
demonstrate hemobilia
– Managed with angiographic embolization
• Abdominal compartment syndrome
– Development of worsening urine output and/or dif-
culty ventilating the patient while intubated status post exploration with the placement of a temporary abdom­inal closure device while aggressively resuscitating
– Consider re-exploration of the abdomen to evaluate for
other causes and decompress the abdomen

Clean Kills

• Failure to identify concomitant injuries prior to going to
the operating room (i.e., unidentied pneumothorax/
hemothorax, open book pelvic fracture, cervical spine
injury, etc.)
• Performing a CT scan in an unstable patient (do FAST
and if/when positive, take directly to surgery)
• Attempting nonoperative management when not indi-
cated (i.e., hemodynamically unstable patient or nonre-
sponder to resuscitation)
• Lack of knowledge of intraoperative hemorrhage control
techniques
• Lack of recognition of when to transition to a “damage
control” management strategy
89 Liver Trauma
289
Words ofWisdom
The oral board exam will likely focus on a few key manage­ment decisions when faced with a traumatic liver injury, which are rooted in the recognition of when it is appropriate to perform nonoperative versus operative management. Non­operative management will focus on the critical care man­agement of patients who are post-injury. Operative management will address key decisions focusing on the least invasive to the most invasive strategies to control liver hem­orrhage intraoperatively. It is unlikely that you will face a scenario based on the isolated management of liver injury but a combination of injuries. Remember that this is overall
a trauma scenario, therefore, you should adhere to ATLS pro­tocol algorithms in the initial workup and management.

Bibliography

Singer G, Neville A, Feinman M.Abdominal exploration for trauma.
The SCORE Portal. https://www.surgicalcore.org/modulecontent.
aspx?id=1000552. Published July 2023.
Stassen NA, Bhullar I, Cheng JD, Crandall M, Friese R, Guillamondegui
O, et al. Nonoperative management of blunt hepatic injury: an
Eastern Association for the Surgery of Trauma practice management
guideline. J Trauma Acute Care Surg. 2012;73(5 Suppl 4):S288–93.
https://doi.org/10.1097/TA.0b013e318270160d. PMID: 23114483.

Pelvic Fractures

AymenIbrahim andAnirudhKohli
90
Way Question May BeAsked
A 30-year-old male presents to the trauma bay after being involved in an MVC.He is found to have a GCS of 13 upon arrival to the bay. He is noted to be tachycardic to the 110s and blood pressure is noted to be in the 90s/50s. What is your next step?
How toAnswer
• In any trauma scenario, prioritization of the ABCDEs will always be the rst step.
– Airway: Ensure that there is a patent airway and that
patient is able to protect their airway
– Breathing: Are there bilateral breath sounds? If yes,
move on. If no, consider placing a chest tube on the side of the chest with concern for either a hemothorax or pneumothorax.
– Circulation: Is there a pulse? Do you have palpable
distal extremity pulses? Any active bleeding? And if so employ means to temporarily stop active bleeding. Do you have adequate intravascular venous access?
– Disability: What is their GCS? What is their quick neu-
rological assessment? (Are they moving their upper and lower extremities?)
– Environment/Exposure: Look for any signs of trau-
matic injuries on the axillary/perineal and torso/ extremities and control the environment by optimizing room temperature, warm blankets, and warm uids.
A. Ibrahim Department of Surgery, Lankenau Medical Center, Wynnewood, PA, USA e-mail: ibrahimay@mlhs.org
A. Kohli ( Department of Surgery, Lankenau Medical Center, Wynnewood, PA, USA
Division of Acute Care Surgery, Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: anirudh.kohli@jefferson.edu
*)
• Ensure there are two large bore peripheral IVs (18 gauge or lower) and give the patient blood or start massive trans­fusion protocol (MTP) if there is ongoing concern for hemorrhagic shock and/or signicant bleeding.
• With any trauma scenario involving a high-impact mecha­nism of injury, obtaining a chest and pelvic X-ray to assess for injuries is a crucial adjunct to the primary survey.
• If the pelvic X-ray shows an anterior–posterior fracture pattern or an obvious open book fracture of the pelvis and the patient is hypotensive, place the pelvic binder to com­press the pelvic space.
– It is important to remember how to place the pelvic
binder: make sure to line up the binder on the greater trochanters; higher on the body will not provide ade­quate compression.
Way Question May BeAsked
A 35-year-old male presents after an MVC.He is intubated in the eld and brought in by EMS.His vital signs are stable. A primary survey is completed, with a pelvic X-ray demon­strating a pelvic fracture. FAST is negative. Pelvic binder is placed prophylactically, and secondary survey is completed. How do you proceed?
How toAnswer
• Next step in this scenario should be a CT scan as the patient is hemodynamically stable, and there may be other organs that could be injured.
– Remember to mention that other organs in the pelvis
may be injured, such as the bladder and urethra. Hence, do not forget to ask about blood at the meatus or about high-riding prostate. If that piece of information is not provided, one can add RUG/CT Cystogram to the workup.
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_90
291
292
A. Ibrahim and A. Kohli
– If there is blood at the meatus, then one must perform
a retrograde urethrogram (RUG).
– If there is gross hematuria, then a CT Cystogram
should be strongly considered.
– Bladder injuries that are intraperitoneal require opera-
tive intervention.
– Bladder injuries that are extraperitoneal are treated
with a Foley catheter placement and decompression for at least 7–10days with a follow-up CT Cystogram typically at day 7 of injury.
• If an intra-abdominal source is found requiring surgery, perform exploratory laparotomy.
• If there is a source of major active bleeding from the pel­vis that is accessible via angiography, direct the patient to IR angiography for potential embolization.
Way Question May beAsked
An 85-year-old female presents to the bay after a fall from standing. She is hemodynamically stable, has a GCS 15 but is complaining of lower abdominal and leg pain. Primary and secondary survey is completed, and the patient is taken to CT scan. CT scan demonstrates retroperitoneal hema­toma. Patient remains stable and Hgb remains stable, how do you manage this hematoma?
How toAnswer
• Stable retroperitoneal hematomas can be observed with serial abdominal exams and checking serial complete blood counts (CBCs) to ensure stability.
• If the scenario mentions the presence of an active extrava­sation, then consider IR angiography and embolization.
• If the scenario describes peritonitis and an expanding hematoma, then one should strongly consider either pre­peritoneal packing in addition to angiography and embo­lization, preferably in a hybrid operating room (if available).
Way Questions May BeAsked
A 65-year-old female presents to the bay after MVC.She was intubated in the eld due to a GCS of 6. She is currently hemodynamically unstable. Primary survey is completed, and secondary survey is notable for ecchymosis along the pelvis and a pelvic binder is placed, a FAST (Focused Assessment of Sonography in Trauma) is performed, which is negative for any intra-abdominal uid. Chest X-ray does not show a large pneumothorax or hemothorax, and the pelvic X-ray shows a small vertical shear fracture pattern. Patient
is currently still hemodynamically unstable despite resusci­tation and cannot proceed to CT scan. What would you do next?
How toAnswer
• This is a situation in which DPL (diagnostic peritoneal lavage) should be considered to rule in the abdominal cavity as the source of bleeding to help in proceeding to the operating room next.
• DPL can be used to assess bleeding into the abdomen that would require laparotomy in a patient who is too unstable to go to CT scan.
– There are multiple techniques for DPL, such as open
(all layers opened), semi-open (fascia opened and then needle inserted), and closed (skin opened and then needle inserted). The safest choice is open using direct visualization.
– Open DPL in a pelvic fracture patient is performed
by making an incision above the umbilicus (supraum­bilical), going through all layers of abdominal wall and through peritoneum. A DPL catheter is placed, and the rst aspiration is performed. If there is >10cc of gross blood or succus, then it is positive, and lapa­rotomy should be performed. If the initial aspiration is not grossly positive, then 1 L of sterile normal saline is instilled and the uid is allowed to passively drain out.
– To summarize DPL ndings and responses:
If gross blood is aspirated, proceed to laparotomy. If clear uid is aspirated, send it to lab for analysis. If analysis shows >100,000 RBC/mm WBC/mm3, the DPL is positive and laparotomy should be performed. If negative, look for another source of bleeding.
• When faced with a hemodynamically unstable pelvic fracture patient who has a negative FAST and negative DPL, perform preperitoneal packing.
– Take the patient from the trauma bay to the OR; prep
and drape in a trauma manner from chin to knees.
– Perform a lower midline incision (can use Pfannenstiel
as well)
– Dissect through abdominal wall with incision of the
abdominal fascia and leave the peritoneum intact until hematoma/bleeding located (pre-peritoneal space usu­ally dissected free by hematoma) or remember the retro-rectus muscle plane (typically used for laparo­scopic or robotic inguinal hernia repair) to help guide you in a hostile plane.
– Once in the preperitoneal plane, sequentially pack 3
laparotomy sponges on each side, beginning posterior, then middle, then anterior on either side of the urinary bladder.
3
or >500
90 Pelvic Fractures
293
– Close the fascia with 0 PDS and the skin with
staples.
– Come back in 24–48h after hemodynamic stability to
remove the sponges.

Common Curve Balls

A challenging problem is the hemodynamically unstable pel­vic fracture patient with a negative FAST exam. Diagnostic Peritoneal Lavage (DPL) can help ensure there is not a false negative FAST result. Be able to describe how to perform a DPL.
For patients who are too unstable to transport to a CT scan or await the Interventional Radiology team, extraperitoneal pelvic packing can provide compression and assist in hemo­stasis and resuscitation of the unstable pelvic fracture patient.

Clean Kills

• Not assessing stability of the pelvis during secondary
survey.
• Not placing a pelvic binder when there is a pelvic fracture
with unstable vital signs.
• Operatively exploring stable retroperitoneal hematomas.
Words ofWisdom
Pelvic fracture patients present in a variety of ways, includ­ing presenting with hemodynamic instability from life­threatening internal hemorrhage. Such cases present diagnostic and therapeutic challenges. Consider obtaining a
pelvic X-ray as an adjunct to the primary survey with a mechanism of injury to the lower abdomen/pelvis or in a hypotensive patient to perform cavitary triage. Consider placement of a pelvic binder with suspicion of a pelvic frac­ture and hypotension. If the patient is normotensive or a tran­sient responder with resuscitation, then consider cross-sectional imaging with intravenous contrast to look for ongoing bleeding. Extraperitoneal pelvic packing can pro­vide a rapid stabilizing and temporizing measure while the logistics of other treatment modalities (e.g., interventional radiology) are brought into play. Angiography with or with­out preperitoneal packing is an effective means of control­ling ongoing bleeding.

Bibliography

ATLS Subcommittee, American College of Surgeons’ Committee on
Trauma, International ATLS Working Group. Advanced trauma life support (ATLS®): the ninth edition. J Trauma Acute Care Surg. 2013;74:1363.
Cothren CC, Osborn PM, Moore EE, Morgan SJ, Johnson JL, Smith
WR. Preperitoneal pelvic packing for hemodynamically unstable pelvic fractures: a paradigm shift. J Trauma. 2007;62(4):834–42.
https://doi.org/10.1097/TA.0b013e31803c7632.
Langford JR, Burgess AR, Liporace FA, Haidukewych GJ.Pelvic frac-
tures: part 1. Evaluation, classication, and resuscitation. J Am Acad Orthop Surg. 2013;21(8):448–57. https://doi.org/10.5435/
JAAOS- 21- 08- 448.
Pizanis A, Pohlemann T, Burkhardt M, Aghayev E, Holstein
JH. Emergency stabilization of the pelvic ring: clini­cal comparison between three different techniques. Injury. 2013;44(12):1760–4.
Score. SCORE|Pelvic fractures (Surgical critical care/Fellowship
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Rib Fractures

JohnathanSadeh
91
Flail chest is dened as three or more consecutive displaced rib fractures in two separate locations along each rib leading to varying degrees of chest wall instability. The pathophysi­ology of hypoxia and ineffective ventilation stems from both the underlying pulmonary contusions and the paradoxical motion of the chest wall during inspiration/expiration. During inspiration, the affected side of the chest collapses inwards due to the negative intrathoracic pressure, collapsing the airways, and increasing dead space.

Work Up

1. All trauma scenarios should be worked up in a similar
manner and should start with the ABCs of trauma: (a) Airway (b) Breathing (c) Circulation (d) Disability (e) Exposure
Many patients in trauma will have other concomitant injuries, and those will need to be addressed as well. These patients are also more likely to be categorized under blunt trauma and should have C-collars placed.
Special consideration at this point for intubation and chest tube placement for impending respiratory instability.
2. A thorough head-to-toe secondary survey should be per­formed to rule out any other major injuries.
3. Adjuvants such as E-FAST and imaging (Chest/pelvic X-rays) can be performed in the trauma bay.
(a) Address any large visible pneumothorax/hemotho-
rax/hemopneumothorax with a chest tube
J. Sadeh (*) General Surgery, Jefferson Einstein Hospital, Philadelphia, PA, USA e-mail: Johnathan.Sadeh@jefferson.edu
4. If there is no reason to bring the patient directly to the operating room, CT imaging should be performed if appropriate.
(a) Non-contrast CT head (b) IV contrast CT Chest-Abdomen-Pelvis (c) CT maxillofacial for concerns of facial fractures (d) CT angiography of head and neck if
• 1st rib fractures
• Denver or Memphis criteria

Non-Surgical Treatment

1. The primary treatment of those with rib fractures is multi­model pain control using both non-narcotic and narcotic medications. Options include:
(a) Acetaminophen (b) NSAIDs (c) Oral narcotics (d) I.V narcotics (e) Gabapentin or Pregabalin (f) Muscle relaxants (i.e., Cyclobenzaprine)
• If pain remains uncontrolled, patient-controlled analgesics, epidurals, local nerve blocks (i.e., erector spinae block, intercostal blocks), and nerve block catheters.
2. Aggressive pulmonary toilet
3. Close monitoring of respiratory status (a) ABGs (b) Daily chest X-rays
4. Non-invasive ventilation (a) Hi-Flow nasal Cannula (b) CPAP (c) Bipap/Bilevel
5. Invasive ventilation
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_91
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