Arthroscopic-Assisted Suspensionplasty Using the Palmaris Longus Tendon for Osteoarthritis of the Thumb Carpometacarpal Joint

Osteoarthritis of the thumb carpometacarpal joint is common, especially in postmenopausal women. Numerous surgical techniques, including ligament reconstruction, partial or complete trapeziectomy, arthrodesis, and arthroplasty have been introduced. Suspensionplasty combined with trapeziectomy has been introduced to prevent proximal subsidence of the first metacarpal. To prevent excessive release of periarticular capsuloligamentous tissues, resection of the proximal part of the trapezium, and the cosmetically unappealing bump, arthroscopic partial trapeziectomy has been used as a less-invasive treatment option. With advanced techniques and devices, arthroscopic suspensionplasty with the autograft can be performed; thus far, there have been no series reporting on arthroscopic treatment options for this common condition. The purpose of this article is to present a technique for arthroscopic-assisted suspensionplasty using the palmaris longus tendon to reinforce the graft–bone interface, based on the concept of the tension slide technique to treat thumb carpometacarpal osteoarthritis.