Abstract
Systemic scleroderma can cause significant hand deformity and functional impairment. Surgery is often avoided due to the perceived risks of wound healing. The most common surgical procedures have been digital sympathectomy, arthrodesis or arthroplasty of the proximal interphalangeal (PIP) or both, and metacarpophalangeal (MCP) joints. We describe herein successful soft tissue hand surgery in 2 patients for treatment of scleroderma claw deformities without the use of arthrodesis or arthroplasty. At the MCP joint, the tight capsules were excised, and the collateral ligaments and volar plates were released. At the PIP joints, the volar plates were released and the tight palmar skin was released, resulting in marked improvement of joint position. Intensive hand therapy was used to maximize function. In these 2 patients with claw deformity, we found that tight volar skin was the main contributor to flexion contracture at the PIP level. In contrast, joint capsule contracture was the main contributor to hyperextension deformity at the MCP level.
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