Ensemble CMC™ Pyrocarbon Interpositional Arthroplasty

  • Trapezium-sparing, Anatomic Design
  • Minimally-Invasive Surgical Procedure
Ensemble CMC procedure comparison

The thumb’s CMC joint is formed where the first metacarpal meets the trapezium in the wrist. These bones have saddle-shaped, articular surfaces which allow a wide range of motion. Osteoarthritis (OA) erodes their protective cartilage, causing pain and impairing function. There is no cure for OA, and if early-stage treatment isn’t effective, your doctor may suggest surgery. Standard options: (1) replace the trapezium with harvested tissue; (2) remove trapezium and anchor the metacarpal; (3) cut off bone and insert a stemmed device into the metacarpal; or (4) fuse bones to stop movement.

The Ensemble CMC™ uses a trapezium-sparing procedure to reshape damaged surfaces – with minimal tissue disruption. An anatomically-shaped implant is then inserted between the bones. For optimal pain relief and return of function, please follow all postoperative instructions from your healthcare providers.

Ensemble CMC procedure comparison