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• Screws without threaded heads can be used to secure fragments that require drilling at an angle other than possible with the fixed-angle holes in the T portion of the plate.
• Recheck plate and screw position with intraoperative radiographs.
• Place pronator quadratus over plate. Close skin.
Suggested Readings
Postoperative Care
• Immediate finger motion and forearm rotation
• Short arm plaster splint and bulky bandage for 2 weeks
• Short arm molded plastic for 2 weeks. If the fixation is stable, the splint can be removed for gentle wrist motion.
Orbay JL, Fernandez DL. Volar fixation for dorsally dis-
placed fractures of the distal radius: a preliminary report. J Hand Surg 2002;27A:205–215
Orbay JL, Fernandez DL. Volar fixed angle plate fixation
for unstable distal radius fractures in the elderly patient. J Hand Surg 2004;29A:96–102
■ 14 SECTION I OVERVIEW OF DISTAL RADIUS FRATURES

Open Treatment of Galeazzi Fractures6

Indications
Any displaced fracture of the distal radius with an associated dislocation of the distal radioulnar joint (DRUJ) (Fig. 6–1)
Technique
• Palmar approach via zigzag incision over flexor carpi radialis (FCR) sheath (Fig. 6–2)
• Retract FCR radially.
• Incise floor of FCR sheath.
• Elevate pronator quadratus off of radius by subpe­riosteal dissection working from radial to ulnar.
• Extend the dissection proximally, elevating and retracting the fibers of the flexor pollicis longus in a radial direction.
Figure 6–1
Figure 6–2
CHAPTER 6 OPEN TREATMENT OF GALEAZZI FRACTURES 15 ■
Figure 6–3
• Debride fracture site and attempt provisional reduc­tion.
• Apply palmar plate with provisional fixation: 2 screws distally and 2 screws proximally (Fig. 6–3).
• Check plate and fracture position with intraoperative radiographs.
■ Pitfall
Check the position of the distal ulna on the lateral radiographs. Check the forearm rotation. If the ulna is not colinear with the radius on a lateral projection, or if there is a block to forearm rotation, carefully check the align­ment of the radius. The most common reason for lack of forearm rotation is malalignment of the radius.
Figure 6–4
• Fill remaining holes in the plate. Recheck align­ment of the radius and hardware placement ( 6–4).
• Check the stability of the distal radioulnar joint with the forearm supinated, pronated, and in a neutral position (Fig. 6–5).
• If the ulna is stable in supination, consider immobi­lizing the forearm in supination.
Fig.
■ 16 SECTION I OVERVIEW OF DISTAL RADIUS FRACTURES
Figure 6–5
CHAPTER 6 OPEN TREATMENT OF GALEAZZI FRACTURES 17 ■
• If the ulna is unstable in all positions, consider pin­ning the distal radioulnar joint with the forearm in neutral.
■ Pearl
Use two 0.62 in. pins to stabilize the distal radial ulnar joint. Insert the pins through the metaphysis of the radius exiting the radial cortex. If the pins break, they can be retrieved through either cortex.
Suggested Readings
Postoperative Care
• Immediate finger motion and forearm rotation
• Long arm splint in supination if pins are not used and in neutral if pins are placed
• Begin forearm rotation at 4 weeks.
• Use static progressive splinting for limited forearm rotation once there is radiographic evidence that the radius has healed.
Faierman E, Jupiter JB. The management of acute frac-
tures involving the distal radioulnar joint and distal ulna. Hand Clin 1998;14:213–229
Kraus B, Horne G. Galleazzi fractures. J Trauma 1985;24:
1093–1095
Strehle J, Gerber C. Distal radioulnar joint function after
Galleazzi fracture-dislocation treated by open reduction and internal plate fixation. Clin Orthop 1993;293: 240–245
■ 18 SECTION I OVERVIEW OF DISTAL RADIUS FRACTURES
Section II
Distal Radius Malunions and Nonunions
7

Extension Osteotomy for the Malunited Distal Radius

Indications
• Wrist pain, limited wrist motion (especially flexion), and limited forearm rotation
• Deformity of the radius (Fig. 7–1)
• Loss of radial length due to dorsal tilt of articular sur­face
Preoperative Evaluation
• Template: must decide whether to correct dorsal tilt alone or correct dorsal tilt and lengthen dorsal and palmar cortex
• Prepare the patient for the possibility of a resection of the distal ulna if a block to forearm rotation persists after restoring the shape of the radius, or if there is arthritis of distal radioulnar joint (DRUJ).
Technique
• Use dorsal approach to the radius.
• Remove the extensor pollicis longus (EPL) from the third compartment and retract radially.
• Z-lengthen the retinaculum of the fourth compart­ment and retract the extensor digitorum communis (EDC) tendons ulnarly (Fig. 7–2).
Figure 7–1
Figure 7–2
■ 20 SECTION II DISTAL RADIUS MALUNIONS AND NONUNIONS
■ Pearl
Do not violate the palmar cortex if length can be restored by osteotomy of the dorsal cortex alone. An intact palmar cortex adds to the stability of the osteotomized bone. This allows the use of narrow, low-profile plates to stabilize the dorsal cortex.
• Correct malposition. Maintain corrected position with Gelpy retractors K-wires (Fig. 7–2). Check position with intraoperative imaging.
• Harvest iliac crest bone graft (ICBG) tricortical graft to match size of defect and additional cancellous bone.
• Press fit ICBG to defect.
• Check position with intraoperative image.
• Stabilize with dorsal plate: place distal and proximal screw. Check position with intraoperative imaging (Fig. 7–4).
Figure 7–3
• Place spinal needle into radiocarpal joint to show plane of the articular surface.
• Drill K-wire into dorsal aspect of radius at expected level of osteotomy parallel to spinal needle. Check position with fluoroscopy (Fig. 7–3).
■ Pearl
The osteotomy should be
• Parallel to the joint
• In the metaphysis; preferably through the original fracture line of the distal fragment
• Proximal enough to allow adequate fixation
• Complete the osteotomy in line with K-wire using osteotome or oscillating saw with generous irrigation.
Figure 7–4
CHAPTER 7 EXTENSION OSTEOTOMY FOR THE MALUNITED DISTAL RADIUS 21 ■
■ Pearl
When the EPL tendon is transposed there is an 1 cm space between the extensor carpi radialis tendon and the EDC tendons. If the palmar cortex is intact and the press fit ICBG creates a stable radius, a 2.0 or 2.4 mini fragment plate can be used to stabilize the radius and secure the graft. If, following plating, the construct does not appear secure use a larger plate or supplement the fixation with two 0.062 in. pins inserted from the radial styloid.
• Fill remaining screws. Check appearance of DRUJ and quality of rotation. If radius is reduced and there is a block to rotation or coexisting arthritis of the DRUJ, consider Darrach resection in older, low-demand patient; hemiresection of the distal ulna in a younger, high-demand patient. (Fig. 7–5)
• Close, laying one flap of retinaculum over plate and one over tendons.
Postoperative Care
• Short arm splint for 2 weeks
• Short arm cast until the osteotomy has healed
Figure 7–5
Suggested Readings
Fernandez DL. Reconstructive procedures for malunion
and traumatic arthritis. Orthop Clin North Am 1993;24: 341–363
Alternative Techniques
• Corrective, extension osteotomy of the distal radius can be performed through a palmar approach using palmar plate with locking screws.
• In malunions treated within the first few months it is often possible to use banked bone instead of iliac crest bone graft.
Ladd AL, Huene DS. Reconstructive osteotomy for malu-
nion of the distal radius. Clin Orthop 1996;327: 158–171
■ 22 SECTION II DISTAL RADIUS MALUNIONS AND NONUNIONS
8

Dorsal and Palmar Osteotomy for Malunion of Distal Radius with Iliac Crest Bone Graft

Indications
• Wrist pain, limited wrist motion (especially flexion), and limited forearm rotation
• Deformity of radius
• Dorsal tilt of articular surface
• Loss of radial length due to shortening from both dorsal
tilt of the radius and shortening of the palmar cortex
Preoperative Evaluation
Template: must decide whether to correct dorsal tilt alone or correct dorsal tilt and lengthen dorsal and palmar cortex
Discuss the possibility that the radius cannot be restored to its anatomical length. This may create the need to perform a resection of the distal ulna to restore forearm rotation.
Technique
• Dorsal approach between third and fourth extensor compartment internal via Z-lplasty of retinaculum (Fig. 8–1)
• Place spinal needle into radiocarpal joint to show plane of the articular surface.
• Drill K-wire into dorsal aspect of radius at expected level of osteotomy parallel to spinal needle. Check position with fluoroscopy.
■ Pearl
The osteotomy should be
• Parallel to the joint
• In the metaphysis; preferably through the original fracture line of the distal fragment
• Proximal enough to allow adequate fixation
• Complete the osteotomy in line with the K-wire using an osteotome or an oscillating saw with generous irri­gation.
• Correct malposition. Maintain corrected position with Gelpy retractor K-wires (Fig. 8–2). Check position with intraoperative imaging.
• Harvest iliac crest bone graft (ICBG) tricortical graft to match size of defect. Harvest additional cancellous bone to supplement tricortical graft.
Figure 8–1
Figure 8–2
CHAPTER 8 DORSAL AND PALMAR OSTEOTOMY 23 ■