Correction of rheumatoid swan-neck deformity by lateral band mobilization

---

Gainor BJ. Hummel GL. x Journal of Hand Surgery - St Louis. [JC:ia9] 10(3):370-6, 1985 May. x Fifty-seven digits in 18 hands of 14 patients with rheumatoid disease were x retrospectively evaluated after surgical correction of swan-neck x deformity. Release of each hyperextension deformity was done via a x previously described lateral band mobilization technique with temporary x pin fixation of the proximal interphalangeal (PIP) joint and primary skin x closure. Extension block splinting was used for 1 month after pin removal. x Follow-up averaged 24 months. Twenty-two percent of the patients were x enthusiastic about their results, 56% were satisfied, 22% were equivocal, x and none were dissatisfied. Maximum active flexion at the PIP joint x averaged 55 degrees, and maximum extension averaged--10 degrees. The x average distance from fingertip to distal palmar crease was 32 mm. Average x grip strength was 10 kg of force in men and 4 kg in women. Step-cut x lengthening of the central slip was associated with the development of a x boutonniere deformity and an unsatisfactory result in three digits. Even x with narrowing of the PIP joint or articular erosions, which were found on x 91% of roentgenograms, lateral band mobilization to correct swan-neck x deformity can predictably improve the function and cosmesis of rheumatoid x hands. x