Hand Trauma
A 35-year-old manual laborer presents 5 days after punching a wall in anger. He describes pain over the dorsum of his long finger MCP joint and a painful snapping sensation when making a fist. On examination, you observe the EDC tendon subluxating ulnarly with MCP flexion and snapping back with extension. He has weak but present active MCP extension with normal PIP and DIP extension. Regarding sagittal band injuries:
Mark each as TRUE or FALSE
Sagittal bands are transverse fibers from the volar plate that wrap around the EDC to stabilize it d...
The Rayan classification guides treatment: Type I (partial tear, no subluxation) responds to splinti...
Radial subluxation of EDC is more common than ulnar subluxation; isolated sagittal band tears are th...
Conservative treatment with MCP extension splinting for 4-6 weeks is appropriate for Rayan Type I an...
Surgical repair is indicated for Type III injuries, failed conservative treatment, and high-demand p...
Answer the questions to see explanations
Click T (True) or F (False) for each option