Successful Arthroplasty Using Cadaveric Meniscus for Osteochondral Defects in the Wrist and Hand Joints.

BACKGROUND

Osteochondral defects of the radiocarpal, metacarpophalangeal (MCP), and proximal interphalangeal (PIP) joints often necessitate joint arthrodesis or mechanical arthroplasty, which has a limited lifespan. In severely arthritic wrist and finger joints, we propose a novel adjunct for joint salvage using cadaveric meniscus for joint resurfacing as an off-the-shelf alternative to address osteochondral defects and restore normal intraarticular contact stress.

METHODS

A total of 14 patients with osteochondral defects in 5 radiocapitate, 5 MCP, 3 PIP, and 1 carpometacarpal joints received cadaveric meniscus to facilitate arthroplasty. Patient demographic, perioperative pain, range of motion, and complications were examined.

RESULTS

Patients aged 17 to 73 years old (average, 54.6 years old) underwent joint reconstruction for scaphoid nonunion (n = 1), scaphoid-lunate advanced collapse (n = 4), or osteoarthritis of MCP/carpometacarpal (n = 6) or PIP (n = 3) joints. Successful arthroplasty with joint space preservation occurred in all joints. Patients had a significant reduction in average pain scale score ( < 0.01) and improved average range of active motion degrees of flexion ( < 0.01) and degrees of extension ( < 0.05). No complications resulted; only a revision tenolysis and capsulotomy were required for PIP and MCP arthroplasties. Postoperative films reveal preservation of arthroplasty joint space after an average 19.7-month follow-up (range, 8-54).

CONCLUSIONS

We believe that meniscus is a viable joint salvage option or adjunct to preserve pain-free motion and avoid total joint arthrodesis. In this series of 14 patients, we demonstrate the successful use of cadaver meniscus in hand joint arthroplasty, such that it advantageously maintains a low metabolic demand, is biointegratable, and is surgically malleable.