Isolated Trapezoid Fracture in a Boxer.

BACKGROUND Trapezoid fractures are very uncommon, accounting for less than 1% of all wrist fractures. Isolated fractures of this bone are even more rare, with just a few reports in the literature. The trapezoid bone has a very stable position within the wrist, forming a relatively immobile joint with the second metacarpal base distally. It is also connected by very strong ligaments to the trapezium, capitate and, scaphoid. Trapezoid fractures occur when a strong bending or axial force is applied to the second metacarpal base. CASE REPORT We present a clinical case of an isolated, non-displaced, trapezoid fracture in a young white male, which was treated with cast immobilization for 4 weeks and physical therapy. Complete functional recovery was achieved 3 months after the injury, without any pain or tenderness. CONCLUSIONS Fractures of the trapezoid bone usually have a good clinical outcome. Nonetheless, we need to be very suspicious about this diagnosis since radiography is apparently normal in almost all such cases and clinical examination results may not be entirely clear.

Ulnar head arthroplasty with posterior interosseous nerve neurectomy: A case report.

BACKGROUND: Distal Radioulnar joint (DRUJ) arthropathy can occur as a consequence of multiple mechanisms, including trauma, inflammatory or degenerative arthritis or even congenital anomalies. Ulnar head arthroplasty has been proposed as a viable therapeutic option, potentially restoring wrist function and improving pain control. This can also be achieved by complete wrist neurectomy but it has several risks associated with the procedure. A selective neurectomy may be more effective. CASE PRESENTATION: We report the case of a 51-year-old man, Tool-Colector, who suffered from constant diffuse left wrist pain aggravated with activities and had a swollen and tender wrist at physical examination with limited range of motion on prono-supination. Radiographic and magnetic resonance imaging showed degenerative changes in the radiocarpal joint and distal radioulnar joint. In order to preserve the remaining mobility and reduce the wrist pain we proceeded with an ulnar head arthroplasty and a posterior interosseous nerve neurectomy, through a single skin incision in the dorso-ulnar side of the wrist. Afterwards, the patient followed a strict rehabilitation program with a hand therapist. Six months later he returned to his previous job with no limitations. CONCLUSIONS: Ulnar head arthroplasty seems to be a very good option in the treatment of severe DRUJ arthrosis. It significantly improves pain control while maintains or even improves range of motion. Posterior interosseous nerve neurectomy is a simple technique and highly effective.