This deformity can usually be corrected surgically. Fixed flexion of the PIP joint and hyperextension of the DIP joint. Causes include dislocation, fracture, osteoarthritis, and rheumatoid arthritis. Surgical reconstruction is difficult and may be unsatisfactory. A clinical form of osteoarthritis in the hand in which the DIP joint, some PIP joints, and the first carpometacarpal joints are genetically predisposed to extensive synovitis and cyst formation.
Pain causing disuse or disability of the hands is a major problem among the elderly.
Erosive OA does not usually affect the MCP joints or wrists. The ESR and CBC are usually normal, regardless of disease severity. Progressive contracture of the palmar fascial bands, producing flexion deformities of the fingers. This autosomal dominant disorder with variable penetrance occurs more commonly in patients with diabetes, alcoholism, or epilepsy. However, the factor that causes the palmar fascia to thicken and contract is unknown.