Total thumb carpometacarpal arthroplasty for failed trapeziometacarpal joint arthrodesis

Carpometacarpal osteoarthritis of the thumb associated with uncommon concomitant hypoproteinemia mimicking irreversible carpal tunnel syndrome: Case report

“…The incidence of scaphotrapeziotrapezoidal OA after CMCJ I arthrodesis is reported to be 16.2% radiographically; but noted that only 3.3% of them are symptomatically and for those cases the conversion to trapeziectomy is recommended [36]. For a failed CMCJ I arthrodesis in the absence of scaphotrapeziotrapezoidal OA the conversion to a motion-restoring total CMCJ I replacement that may decrease overuse-related disorders in the adjacent joints can improve the patients satisfaction in single cases as well [37]. Noted that for a failed trapeziectomy the thumb-index metacarpal arthrodesis with or without involvement of the trapezoid bone (Figure 4A-D) or an insertion of a joint prosthesis with the cup placed into the scaphoid bone (i.e.…”