The Role Of The Carpometacarpal Ligaments Of The Thumb In Stability And The Development Of Osteoarthritis Lesions : An Anatomical Study.

This study aims to assess ligament lesions and subluxations of the carpometacarpal (CMC) joint of the thumbs and the role that these ligament ruptures play in the pathophysiology of osteoarthritis (OA). Twenty-five fresh-frozen cadaver hands were dissected. There were 14 female and 11 male with mean age 65 years (51-92 years old).

Relationship Between Wrist Motion and Capitolunate Reduction in Four-Corner Arthrodesis.

The authors retrospectively studied 36 patients with degenerative changes associated with scaphoid nonunion and scapholunate advanced collapse treated with circular plate fixation and bone graft. The goals of the study were to review the incidence of dorsal impingement, nonunion of arthrodesis, loose hardware, broken screws, and limitation in wrist motion associated with correct or incorrect surgical capitolunate reduction. Surgical indications were scapholunate advanced collapse (3 patients), scaphoid nonunion advanced collapse (32 patients), and sequelae of irreducible perilunate dislocation (1 patient).