[Evaluation of the result of tendon transfer].
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Fourteen children with electrical burns involving 33 fingers were followed for a period of more than 8 years. Primary treatment was conservative in 17 fingers, of which 11 required surgery at a later date. Adequate function was restored in 12 fingers after completion of this treatment and persisted for 8 years and more. In 5 fingers substantial joint deformities developed. For 16 fingers surgery was required as primary treatment. Bone involvement was present in 10 of these. Secondary surgery proved to be necessary in 2 fingers, on one aseptic necrosis necessitated replacement by a bone graft. All of the 16 fingers showed good function in the period under review. There was no radiological evidence of deformities, but growth was substantially slower than normal. Apparently coverage of exposed bone with well vascularized tissue improved local blood flow so that damage other than that originally produced by the electrical burns was prevented.
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We treated twenty six patients with thirty four partial tendon lacerations by not suturing the tendons and by early mobilization of the digit. These partial tendon lacerations varied from 25 to 95 per cent of the cross sectional area. The mean and median cross-sectional area lacerated was 60 per cent. Twenty three of these patients obtained excellent function, one patient obtained good to excellent function and one patient obtained fair function. One patient was lost to follow-up. No tendon ruptured but one patient did develop trigger finger which spontaneously resolved. Partial flexor tendon lacerations should not be repaired and early active motion should be used if bevelling of the laceration is not present. Bevelled partial tendon lacerations of less than twenty five per cent of the cross sectional area can be either excised or repaired with a simple interrupted suture. If greater than twenty five per cent of the cross-sectional area is lacerated and bevelled, the laceration should be repaired with a few simple sutures. Regardless of the treatment of the tendon early active motion is necessary.
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The performance of 50 consecutive digits in 37 patients was analyzed following flexor tendon repair in Zone II. Twenty-five digits were managed by 3 1/2 weeks of immobilization followed by a program of gradually increased motion; 25 other digits by intermittent passive motion initiated within the first 5 days with active flexion commenced at 4 1/2 weeks. Results were graded according to the percentage of return of motion at the proximal and distal interphalangeal joints. There were four ruptures in the immobilization group with no excellent results, 12% being rated good, 28% fair, and 11% poor. In the digits managed by early mobilization there were 36% excellent, 20% good, 16% fair, 24% poor; there was one rupture in this group. Early passive motion appeared to be an effective technique to improve the results of flexor tendon repairs in this area.
The management of lateral dislocations of the proximal interphalangeal joint is controversial. Absolute indications for operative management are few, and most dislocations can be treated nonoperatively. In this case, the ulnar collateral ligament was trapped between the lateral hand and central slip of the dorsal apparatus and required open reduction for a satisfactory functional result.
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The aponeurosis of the common extensor tendons is connected by intertendinous connections proximal to the metacarpophalangeal joints. These fibers are responsible for tenodesis effects in case of maximal finger extension and flexion and by this means they diminish the function of the other metacarpophalangeal joints. This mechanism can be described as the Quadriga-Syndrome of the extensor apparatus. These connecting structures also help to stabilize the transverse metacarpophalangeal arch and the position of the extensor tendons over the metacarpal heads. Cadaver dissections as well as operative findings have shown that there exists a superficial transverse intermetacarpal ligament, which connects the metacarpal heads in the area of its neck.
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Our results with the use of intraosseous wires for 72 complex, open fractures are reported. The technique is described, and attention to detail is emphasized. The technique is indicated especially for articular or comminuted fractures with multiple small fragments. It also provides solid, anatomic fixation for other types of fractures and for replants. A K-wire may be added if necessary and is usually used if there has been some bone loss. Complications have been few, most the result of displacement at the fracture site due to improper use of the technique. A major advantage of the solid fixation obtained with this technique is that it avoids or minimizes the need for postoperative splinting and allows early active and passive range of motion. It is our impression that this has minimized joint stiffness and tendon adhesions and improved functional results.