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11 Medical, Interventional, and Orthotic Management of Osteoporotic Vertebral Compression Fractures
105
they are frequently cumbersome and can be dif­cult to put on and off. When to apply the brace, what type of brace to use, and how long to wear the brace are still questions that need to be answered formally.
In the initial 3 months following an OVCF, there is a paucity of literature looking at the direct effects of bracing; however, the majority of liter­ature that discusses treatment options for OVCFs include bracing in the algorithm. Studies looking at three-point orthoses (3-POs) and corsets have shown varying results as to which is the preferred method of bracing in the acute treatment phase. Murata et al. found that rigid external supports are more likely to prevent deformity and non­union compared to exible corsets, whereas Meccariello et al. found that exible corsets in comparison to 3-POs showed greater improve­ments in quality of life and function with less complications while providing equivalent stabili­zation effects [38, 39]. Prospective studies look­ing at conservative treatment with and without bracing are needed to better elucidate the effects of specic orthoses.
The strongest evidence exists for the use of bracing after the acute period. In patients who develop kyphosis, the utility of a semirigid backpack thoracolumbar orthosis has been described. Two studies by Pfeifer etal. demon­strated using a thoracolumbar orthosis in the 6-month period following an OVCF resulted in increased core strength, decreased kyphosis, decreased pain, and improved function and quality of life [40, 41].
Like other treatments, bracing also has its risks. Rigid braces can result in decubitus ulcers and infections. Although the studies above reported increased strength following bracing, some braces have been reported to result in weak­ening of the axial musculature and decreased pul­monary function. There is also the theoretical potential for fracture at the proximal and distal ends of the brace as there is an abrupt change in stiffness. Therefore, when bracing is used, patients and caregivers must be counseled on monitoring for side effects, and the duration of use should be limited.
As there are many brace options available, the decision to prescribe a particular brace should be based on patient comfort, compliance, and cost until there is clear evidence that one brace is superior.

Psychological Treatment

Quality of life following an OVCF has been well studied and was shown to be negatively impacted [42–45]. In particular, following the resolution of pain, patients often have psychological impair­ment. Patients have reported anxiety and depres­sion and, as a result of kyphosis, abdominal protrusion, and activity limitation, can also have diminished self-esteem [44]. Additionally, a fear of falling, embarrassment, and frustration have been reported [43, 46].
Orthopedic surgeons play a role in the treat­ment of the above conditions primarily through recognition of the condition in follow-up, but also in making referrals to person-centered and other supportive interventions for continued treatment following an OVCF.During follow-up, the surgeon must make it a point to inquire about patients’ quality of life and psychological issues as many patients may not openly offer this infor­mation [43]. When abnormal moods and fear of functional impairments are identied, consulta­tion with a physical therapist, psychologist, or psychiatrist may be warranted. In a study by Olsen etal., an exercise and education program led by a physical therapist showed a signicant decrease in the fear of falling [47]. Gold et al. showed that a physical therapist-led class was able to not only teach exercises but also stress reduction techniques, relaxation techniques, and lifestyle modications to address psychological symptoms [48].

References

1. Cooper C, Atkinson EJ, O’Fallon WM, Melton LJ 3rd.
Incidence of clinically diagnosed vertebral fractures: a population-based study in Rochester, Minnesota, 1985-1989. J Bone Miner Res. 1992;7:221–7.
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K. Shenoy and Y. H. Kim
2. Prather H, Watson JO, Gilula LA.Nonoperative man­agement of osteoporotic vertebral compression frac­tures. Injury. 2007;38(Suppl 3):S40–8.
3. Kim DH, Silber JS, Albert TJ. Osteoporotic ver­tebral compression fractures. Instr Course Lect. 2003;52:541–50.
4. Silverman SL. The clinical consequences of ver­tebral compression fracture. Bone. 1992;13(Suppl
2):S27–31.
5. Chou R, Huffman LH, American Pain S, American College of P.Medications for acute and chronic low back pain: a review of the evidence for an American Pain Society/American College of Physicians clinical practice guideline. Ann Intern Med. 2007;147:505–14.
6. Longo UG, Loppini M, Denaro L, Maffulli N, Denaro V. Conservative management of patients with an osteoporotic vertebral fracture: a review of the litera­ture. J Bone Joint Surg Br. 2012;94:152–7.
7. Dworkin RH, O’Connor AB, Audette J, Baron R, Gourlay GK, Haanpaa ML, etal. Recommendations for the pharmacological management of neuropathic pain: an overview and literature update. Mayo Clin Proc. 2010;85:S3–14.
8. McCleane G. Antidepressants as analgesics. CNS Drugs. 2008;22:139–56.
9. Benbouzid M, Gaveriaux-Ruff C, Yalcin I, Waltisperger E, Tessier LH, Muller A, etal. Delta­opioid receptors are critical for tricyclic antide­pressant treatment of neuropathic allodynia. Biol Psychiatry. 2008;63:633–6.
10. Bohren Y, Tessier LH, Megat S, Petitjean H, Hugel S, Daniel D, et al. Antidepressants suppress neu­ropathic pain by a peripheral beta2-adrenoceptor mediated anti-TNFalpha mechanism. Neurobiol Dis. 2013;60:39–50.
11. Watson CP, Gilron I, Sawynok J, Lynch ME.Nontricyclic antidepressant analgesics and pain: are serotonin norepinephrine reuptake inhibitors (SNRIs) any better? Pain. 2011;152:2206–10.
12. Skljarevski V, Zhang S, Desaiah D, Alaka KJ, Palacios S, Miazgowski T, et al. Duloxetine versus placebo in patients with chronic low back pain: a 12-week, xed-dose, randomized, double-blind trial. J Pain. 2010;11:1282–90.
13. Mehta S, McIntyre A, Dijkers M, Loh E, Teasell RW. Gabapentinoids are effective in decreasing neu­ropathic pain and other secondary outcomes after spinal cord injury: a meta-analysis. Arch Phys Med Rehabil. 2014;95:2180–6.
14. Ameis A, Randhawa K, Yu H, Cote P, Haldeman S, Chou R, et al. The Global Spine Care Initiative: a review of reviews and recommendations for the non­invasive management of acute osteoporotic vertebral compression fracture pain in low- and middle-income communities. Eur Spine J. 2018;27(Suppl 6):861–9.
15. Knopp JA, Diner BM, Blitz M, Lyritis GP, Rowe BH.Calcitonin for treating acute pain of osteoporotic vertebral compression fractures: a systematic review of randomized, controlled trials. Osteoporos Int. 2005;16:1281–90.
16. Knopp-Sihota JA, Newburn-Cook CV, Homik J, Cummings GG, Voaklander D. Calcitonin for treat­ing acute and chronic pain of recent and remote osteoporotic vertebral compression fractures: a sys­tematic review and meta-analysis. Osteoporos Int. 2012;23:17–38.
17. Overman RA, Borse M, Gourlay ML.Salmon calcito­nin use and associated cancer risk. Ann Pharmacother. 2013;47:1675–84.
18. Kim DJ, Yun YH, Wang JM.Nerve-root injections for the relief of pain in patients with osteoporotic verte­bral fractures. J Bone Joint Surg Br. 2003;85:250–3.
19. Georgy BA. Interventional techniques in managing persistent pain after vertebral augmentation proce­dures: a retrospective evaluation. Pain Physician. 2007;10:673–6.
20. Bogduk N, MacVicar J, Borowczyk J. The pain of vertebral compression fractures can arise in the poste­rior elements. Pain Med. 2010;11:1666–73.
21. Wilson DJ, Owen S, Corkill RA.Facet joint injections as a means of reducing the need for vertebroplasty in insufciency fractures of the spine. Eur Radiol. 2011;21:1772–8.
22. Kim TK, Kim KH, Kim CH, Shin SW, Kwon JY, Kim HK, etal. Percutaneous vertebroplasty and facet joint block. J Korean Med Sci. 2005;20:1023–8.
23. Mitra R, Do H, Alamin T, Cheng I. Facet pain in thoracic compression fractures. Pain Med. 2010;11:1674–7.
24. Lehman VT, Wood CP, Hunt CH, Carter RE, Allred JB, Diehn FE, etal. Facet joint signal change on MRI at levels of acute/subacute lumbar compression frac­tures. AJNR Am J Neuroradiol. 2013;34:1468–73.
25. Wang B, Guo H, Yuan L, Huang D, Zhang H, Hao D. A prospective randomized controlled study comparing the pain relief in patients with osteopo­rotic vertebral compression fractures with the use of vertebroplasty or facet blocking. Eur Spine J. 2016;25:3486–94.
26. Solberg J, Copenhaver D, Fishman SM. Medial branch nerve block and ablation as a novel approach to pain related to vertebral compression fracture. Curr Opin Anaesthesiol. 2016;29:596–9.
27. Esses SI, McGuire R, Jenkins J, Finkelstein J, Woodard E, Watters WC 3rd, etal. The treatment of symptomatic osteoporotic spinal compression frac­tures. J Am Acad Orthop Surg. 2011;19:176–82.
28. Ohtori S, Yamashita M, Inoue G, Yamauchi K, Suzuki M, Orita S, et al. L2 spinal nerve-block effects on acute low back pain from osteoporotic vertebral frac­ture. J Pain. 2009;10:870–5.
29. Chandler G, Dalley G, Hemmer J, Seely T. Comparison of Thoracic versus Lumbar Gray Ramus Communicans Nerve Block in the treatment of pain­ful osteoporotic vertebral compression fracture. Pain Physician. 2000;3:240.
30. Chandler G, Dalley G, Hemmer J Jr, Seely T. Gray ramus communicans nerve block: novel treatment approach for painful osteoporotic vertebral compres­sion fracture. South Med J. 2001;94:387–93.
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31. Mandel S, Schilling J, Peterson E, Rao DS, Sanders W. A retrospective analysis of vertebral body frac­tures following epidural steroid injections. J Bone Joint Surg Am. 2013;95:961–4.
32. Chang V, Holly LT.Bracing for thoracolumbar frac­tures. Neurosurg Focus. 2014;37:E3.
33. Kim HJ, Yi JM, Cho HG, Chang BS, Lee CK, Kim JH, et al. Comparative study of the treatment out­comes of osteoporotic compression fractures with­out neurologic injury using a rigid brace, a soft brace, and no brace: a prospective randomized con­trolled non- inferiority trial. J Bone Joint Surg Am. 2014;96:1959–66.
34. Parreira PCS, Maher CG, Megale RZ, March L, Ferreira ML. An overview of clinical guidelines for the management of vertebral compression fracture: a systematic review. Spine J. 2017;17:1932.
35. Garg B, Dixit V, Batra S, Malhotra R, Sharan A.Non­surgical management of acute osteoporotic vertebral compression fracture: a review. J Clin Orthop Trauma. 2017;8:131–8.
36. Wu SS, Lachmann E, Nagler W. Current medical, rehabilitation, and surgical management of vertebral compression fractures. J Womens Health (Larchmt). 2003;12:17–26.
37. Liaw MY, Chen CL, Chen JF, Tang FT, Wong AM, Ho HH. Effects of Knight-Taylor brace on balance performance in osteoporotic patients with vertebral compression fracture. J Back Musculoskelet Rehabil. 2009;22:75–81.
38. Meccariello L, Muzii VF, Falzarano G, Medici A, Carta S, Fortina M, etal. Dynamic corset versus three­point brace in the treatment of osteoporotic compres­sion fractures of the thoracic and lumbar spine: a prospective, comparative study. Aging Clin Exp Res. 2017;29:443–9.
39. Murata K, Watanabe G, Kawaguchi S, Kanaya K, Horigome K, Yajima H, etal. Union rates and prog­nostic variables of osteoporotic vertebral fractures treated with a rigid external support. J Neurosurg Spine. 2012;17:469–75.
40. Pfeifer M, Kohlwey L, Begerow B, Minne HW.Effects of two newly developed spinal orthoses on trunk mus­cle strength, posture, and quality-of-life in women with postmenopausal osteoporosis: a randomized trial. Am J Phys Med Rehabil. 2011;90:805–15.
41. Pfeifer M, Begerow B, Minne HW.Effects of a new spinal orthosis on posture, trunk strength, and qual­ity of life in women with postmenopausal osteopo­rosis: a randomized trial. Am J Phys Med Rehabil. 2004;83:177–86.
42. Suzuki N, Ogikubo O, Hansson T.Previous vertebral compression fractures add to the deterioration of the disability and quality of life after an acute compres­sion fracture. Eur Spine J. 2010;19:567–74.
43. Cook DJ, Guyatt GH, Adachi JD, Clifton J, Grifth LE, Epstein RS, etal. Quality of life issues in women with vertebral fractures due to osteoporosis. Arthritis Rheum. 1993;36:750–6.
44. Gold DT. The clinical impact of vertebral fractures: quality of life in women with osteoporosis. Bone. 1996;18:185S–9S.
45. Lyles KW, Gold DT, Shipp KM, Pieper CF, Martinez S, Mulhausen PL.Association of osteoporotic verte­bral compression fractures with impaired functional status. Am J Med. 1993;94:595–601.
46. Ettinger B, Block JE, Smith R, Cummings SR, Harris ST, Genant HK.An examination of the asso­ciation between vertebral deformities, physical dis­abilities and psychosocial problems. Maturitas. 1988;10:283–96.
47. Olsen CF, Bergland A.The effect of exercise and edu­cation on fear of falling in elderly women with osteo­porosis and a history of vertebral fracture: results of a randomized controlled trial. Osteoporos Int. 2014;25:2017–25.
48. Gold DT, Shipp KM, Pieper CF, Duncan PW, Martinez S, Lyles KW. Group treatment improves trunk strength and psychological status in older women with vertebral fractures: results of a randomized, clinical trial. J Am Geriatr Soc. 2004;52:1471–8.

Outcomes of Non-operative Management and Vertebral Augmentation of Vertebral Compression Fractures

Robert A. McGuire Jr and Joseph M. Zavatsky
12
The primary goals of treatment for VCFs are pain relief and restoration of vertebral body height. There are also secondary benets of fracture treatment– preservation of the independence of the individual with the fracture, protection of pul­monary function, and avoidance of medical com­plications following the fracture. There are several treatment options available for these patients. Fortunately, the majority of these frac­tures heal uneventfully with conservative man­agement which typically consists of rest, short-term activity modication, bracing for comfort, and short-term use of calcitonin [1–4].
For those patients who have unrelenting pain or progressive collapse of the vertebral body, cement augmentation is an option.
The concept of vertebroplasty was initiated in France in 1987 for the treatment of symptomatic vertebral hemangioma [5]. This consisted of injection of a PMMA cement through a large needle in the vertebral body performed either unilaterally or bilaterally (Fig. 12.1). Improvement of pain was not found to correlate with the amount of cement injected, so this pro­cedure could be done under local anesthesia and at a very low cost. The concept of vertebroplasty
does not address the spinal deformity and uses high pressure cement in a very liquid form and therefore has a greater potential for leakage out­side the vertebral body into the spinal canal and surrounding soft tissues.
The concept of kyphoplasty, which uses a bone tamp or balloon introduced into the verte­bral body to create a cavity for implantation of the cement [6], is more expensive to use but has the potential to improve the kyphotic angle through the cavity creation and placement of a large volume of cement into the re-expanded
R. A. McGuire Jr (*) Department of Orthopaedic Surgery, University of Mississippi Medical Center, Jackson, MS, USA e-mail: rmcguire@umc.edu
J. M. Zavatsky Spine and Scoliosis Specialists, Tampa, FL, USA
© Springer Nature Switzerland AG 2020 A. E. Razi, S. H. Hershman (eds.), Vertebral Compression Fractures in Osteoporotic and Pathologic Bone, https://doi.org/10.1007/978-3-030-33861-9_12
Fig. 12.1 This lateral radiograph reveals consistent ow
through the cancellous interstices of the vertebral body. This is done by using cement in a very liquid consistency, whereas the consistency of the cement is doughy in kyphoplasty and is not likely to be extruded into the canal
109
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R. A. McGuire Jr and J. M. Zavatsky
fractured vertebra. Additionally, the cement is thicker in viscosity which minimizes the risk of extrusion.
Three periods of time will be used to evaluate the evidence available for treating these fractures non-operatively and with cement augmentation using the two above techniques. We will use the available literature prior to the publication of the AAOS guidelines, the literature used for the pro­duction of the AAOS guidelines, and then the lit­erature published after the AAOS guideline publication.

Pre-AAOS Guideline Evidence

Hulme etal. performed a systematic review of 69 clinical studies comparing the use of vertebro­plasty and kyphoplasty [7]. Review of these clini­cal studies revealed no randomized or prospective articles at that time and very few prospective cohort studies. There were 22 kyphoplasty stud­ies with 1288 patients, and the vertebroplasty group consists of 44 studies with 2958 patients. From the data analysis of this study, pain relief was achieved in 92% of patients who were treated with kyphoplasty, with the visual analog scale decreasing from 7.15 to 3.4. In the vertebroplasty group, 87% achieved some relief of their pain with the VAS decreasing from 8.2 to 3.0. There were a limited number of studies that involved the physical function, but it was felt that pain relief resulted in improvement of function in most patients.
When evaluating height restoration, measure­ment techniques vary greatly from study to study, so it is difcult to compare the two tech­niques directly. In the kyphoplasty group, there was an average of 6.6 degrees of kyphosis cor­rection, and in 34% of the studies, there was no appreciable improvement in angular or height restoration. In the vertebroplasty group, there also was a 6.6 degree kyphosis correction with 39% exhibiting no appreciable improvement in the kyphosis.
Reported complications consisted predomi­nantly of cement leakage, which was noted 9% of the time in the kyphoplasty group and 41% of the
time in the vertebroplasty group. Most of these cement leakages, however, were clinically asymptomatic in both groups. The most notable complication in both groups was the occurrence of fractures occurring at levels next to the treated level. This occurred in 15% of patients in the kyphoplasty group and 12.9% of patients in the vertebroplasty group.
Taylor [8, 9] and Liu [10] also published stud­ies which were consistent with the nding of the Hulme [7] study. Liu etal. [10] recommended vertebroplasty to be used in the treatment of VCF based on the higher cost of the kyphoplasty. Eck etal. [11] performed a meta-analysis of the litera­ture comparing the two procedures; the ndings of their study found an improvement of 4.6 points on the visual analog scale following kyphoplasty and 5.68 points following vertebroplasty. New fractures were also noted in 4.1% of those patients treated with kyphoplasty and 7.6% treated with vertebroplasty. They also noted cement leakage occurring in 7% of patients treated with kyphoplasty and 19.7% with vertebroplasty.
In conclusion, when evaluating the data from studies comparing vertebroplasty to kyphoplasty, pain relief was similar in both procedures, func­tional improvement was tied to pain relief, and cement leakage was higher following vertebro­plasty but, in most cases, was clinically irrele­vant. The ability to restore height was only seen within the rst 3–6 months and was somewhat better with kyphoplasty.
When evaluating these techniques to conser­vative management, a study by Diamond etal. [12] using a nonrandomized trial found that after cement augmentation, there was an earlier improvement in pain scores as well as improved physical function in those patients treated with vertebroplasty as compared to the control group. The benets were usually seen within 24hours, and patients treated with vertebroplasty seemed to have a more rapid rehabilitation and lower complication rate. The benets however were only short term– after 6weeks, compared to the control group, patients treated with vertebro­plasty were noted to be fairly similar in all out­come measures.
12 Outcomes of Non-operative Management and Vertebral Augmentation of Vertebral Compression…
111
Rousing et al. [13] found that compared to non-operative treatment, vertebroplasty was suc­cessful in improving pain early, but no difference was found between the two groups at 3months. Wardlaw etal. [14] published the results of a ran­domized trial comparing kyphoplasty to non­operative management and found that kyphoplasty was better than non-operative treatment with respect to pain improvement and functional out­comes at 1month, but those improvements were less apparent at 12 months. McGirt et al. [15] published a systematic review using level 1 evi­dence and found that compared to non-operative treatment, vertebroplasty and kyphoplasty showed better results in the rst 2weeks after the procedure. The level 2 and level 3 evidence revealed that patients who underwent kypho­plasty or vertebroplasty had improved pain at 6months, but none of the studies showed over­whelming differences between conservative and surgical management after that period of time. From the above studies, there appears to be some evidence that early treatment with cement aug­mentation results in improved pain control, but as time progresses, these differences become negligible.

AAOS Guidelines

benet of vertebroplasty over sham surgery at any time point. Kallmes etal. [19] also published a randomized, prospective, multicentered study on patients that had failed medical treatment with fractures less than 1 year old; the primary out­come measures were scored on the modied dis­ability questionnaire, and patients rated their pain during the preceding 24hours. Over 1800 patients were screened with 431 of the patients being eli­gible; 70% declined participation in the study. In the end, there were only 131 patients enrolled in the study, and it was found that 43% of the con­trol group crossed over to surgery by 3months due to unrelenting pain. The ndings reported showed a trend toward clinically meaningful improvement in the vertebroplasty group com­pared to the control group (61% vs. 48%); how­ever there was no statistical signicance demonstrated at any point in time.
Based on the two studies in the New England Journal of Medicine, the AAOS guidelines that were developed recommended against vertebro­plasty; this was based on the two level 1 and three level 2 studies with a strong consensus opinion. Strangely enough, kyphoplasty was noted to have weak support based on two level 1 studies. When comparing kyphoplasty to vertebroplasty, three studies showed inconsistent results, and there­fore, no recommendation could be made.
The American Academy of Orthopaedic Surgeons convened a committee which met in 2009 and 2010 to evaluate the existing body of published evidence in order to develop guidelines for the treatment of osteoporotic vertebral compression fractures. The resulting guidelines were pub­lished in 2011 [16, 17]. What was noted at that time was the fact that there were very few level 1 studies which could be used to develop these guidelines. Buchbinder et al. [18] performed a multicenter, randomized, double-blind, placebo­controlled study looking at outcomes at 1week and 1, 3, and 6 months. The primary outcome evaluated with this study was overall pain relief at 6 months. Seventy-eight participants were enrolled, 38 were treated with vertebroplasty, and 40 underwent a sham procedure; 91% completed the 6-month study. This level 1 study found no

Post-AAOS Guidelines

Since the publication of the AAOS guidelines, there have been multiple studies comparing ver­tebroplasty to conservative treatment. Klazen etal. [20] published the Vertos II study which enrolled 431 patients; 229 patients improved with non-operative management, and 202 were randomized to receive cement augmentation. Cement augmentation resulted in signicant pain relief at 1month, and similar results were maintained at 1 year. Farrokhi et al. [21] also published a randomized controlled study of ver­tebroplasty compared to medical management and found that after vertebroplasty there was a signicant decrease in pain and a signicant improvement in the quality of life at 1 week;
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R. A. McGuire Jr and J. M. Zavatsky
this effect was sustained over 36 months. Berenson etal. [22, 23] published a randomized, controlled trial of cancer patients who sustained a fracture and randomized them to either kypho­plasty or nonsurgical treatment. Patients who underwent kyphoplasty showed a substantial and statistically signicant improvement as compared to the nonsurgical control group. Eddin et al. [24] published a study evaluating the mortality risk following VCF in Medicare patients following operative versus non-opera­tive treatment. They found that after 4years, the survival rate for patients treated non-operatively was 50% compared to the operatively treated group which was 60.8%. When comparing ver­tebroplasty and kyphoplasty, there was a 57.3% survival rate in patients treated with vertebro­plasty and 62.8% in patients treated with kyphoplasty.
Anderson etal. [25] published a meta-analy­sis of eight prospective randomized trials com­paring vertebral augmentation to conservative treatment. The meta-analysis revealed greater pain relief, functional recovery, and quality of life with cement augmentation as compared to conservative treatment. Similar results were noted by Yang etal. [26], after they followed 107 patients for 1 year. Wang et al. [27] looked at studies comparing vertebroplasty to kyphoplasty for single- level compression fractures. They evaluated 8 studies involving 845 patients and found that there were no differences in long-term VAS scores, ODI scores, and short- or long-term SF 36 scores, or differences in adjacent segment fracture rates with either of these procedures. The study did however show kyphoplasty to be superior in correcting the kyphotic angle and vertebral body height as compared to vertebroplasty.
In summary, recent studies have shown that vertebroplasty and kyphoplasty can be used for the treatment of patients with osteoporotic com­pression fractures in patients who fail to improve with medical management. Determining who will benet from cement augmentation versus conservative treatment is an ongoing issue and warrants further research.

Conclusion

Some patients with VCFs can benet from cement augmentation. Studies show that the greatest benet following cement augmentation is usually within the rst 3months following a fracture. Controversies exist in the literature with no study providing denitive evidence as to which patients will benet most from cement augmentation. Patients who are immobilized due to chronic pain from their fracture should be offered the option of cement augmentation. Patients with pain from myeloma and lymphoma are also good candidates for treatment with cement augmentation. The use of kyphoplasty within 3months of a VCF has the possibility of reducing kyphosis that resulted from the fracture. After 3months, both vertebroplasty and kypho­plasty have a low likelihood of kyphosis correction.

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Vertebroplasty Cement Augmentation Technique

A.OrlandoOrtiz
13
Key Points
1. Careful patient selection is a prerequi­site to performing a safe and effective vertebroplasty procedure.
2. Accurate needle placement whether unilateral or bilateral can be achieved with oblique “down-the-barrel” uoro­scopic imaging or with traditional fron­tal pedicle-targeting techniques.
3. Cement injection should be performed with meticulous imaging surveillance in order to avoid cement extravasation into the spinal canal, paraspinal veins, or intervertebral disk.
4. Complications in vertebroplasty, though uncommon, can be further reduced by attention to specic procedure details including use of proper uoroscopic techniques, consistent needle insertion maneuvers with an active appreciation of all osseous landmarks during the pro­cedure, and exquisite attention to the cement injection process.
A. O. Ortiz (*) Department of Radiology, Jacobi Medical Center, Bronx, NY, USA e-mail: ortizo@nychhc.org

Introduction

It is now four decades since the rst image­guided vertebroplasty procedure was performed in 1984 by Galibert and Deramond [1]. As com­pared to the standard vertebroplasty procedure which is most often performed percutaneously in the thoracic or lumbar spine to treat an osteopo­rotic vertebral compression fracture, this rst image-guided vertebroplasty procedure was per­formed transorally in the upper cervical spine for a painful C2 hemangioma. Indeed, vertebroplasty is a percutaneous procedure in which a bone nee­dle is advanced using image guidance into a ver­tebral body that has been fractured as a result of osteoporosis or, less commonly, neoplastic inl­tration [2]. Acrylic bone cement, usually poly­methyl methacrylate that is impregnated with barium for radiopacity, is injected through the bone needle into the vertebral body under direct imaging guidance [3]. The term vertebral aug­mentation is now used as the acrylic bone cement is considered an implant that augments the strength of the damaged vertebra.
The rst image-guided vertebroplasty proce­dures that were performed in the United States commencing in 1993 were reported in 1997 [2]. Due to its early and dramatic success with respect to patient outcomes, this procedure was quickly adopted by those operators who perform percuta­neous image-guided procedures. A review of the Medicare database from 2005 to 2008 showed
© Springer Nature Switzerland AG 2020 A. E. Razi, S. H. Hershman (eds.), Vertebral Compression Fractures in Osteoporotic and Pathologic Bone, https://doi.org/10.1007/978-3-030-33861-9_13
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