Scaphometacarpal arthroplasty: a report of ten cases of trapeziometacarpal prosthesis and trapeziectomy revision

Abstract

Loosening of the trapezial component is a main cause of failure of trapeziometacarpal prostheses. This report presents the preliminary results of scaphometacarpal prostheses used for revision of trapeziometacarpal prostheses and failed trapeziectomies. A retrospective multicentre study was conducted on ten patients. Four had revision surgery after failure of trapeziometacarpal prostheses, five after trapeziectomy and one after a trapezial silicone implant. Pain, mobility, strength, QuickDASH, satisfaction score and radiographs were assessed. Nine patients were assessed (one was lost to follow-up), with a mean follow-up of 34 months. The mean pain score was 1.2/10, Quick-DASH was 39 and opposition according to the Kapandji score was 8.6. Strength was 3 kg for key pinch and 13.6 kg for power grip. One failure was observed, with early loosening of the scaphoid cup. Scaphometacarpal arthroplasty is a reliable medium-term solution for revision of the loosening of a trapeziometacarpal prosthesis with trapezial damage and for failed trapeziectomy. Level of evidence: IV

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

“…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. scaphometacarpal arthroplasty) is also to be considered as a salvage option of choice [38][39][40]. The limitation of a scaphometacarpal arthrodesis is that this procedure impairs the wrist biomechanics (i.e.…”

Basal thumb arthritis surgery: complications and its management

“…From a biomechanical perspective, this surgical technique comes with a caveat: the distal pole of the scaphoid moves considerably on wrist flexion and extension. Chiche et al (2020), publishing their results of a series of 10 patients undergoing scaphometacarpal arthroplasty, reported difficulties with the correct cup placement in the scaphoid. Except for one case of failure with early cup loosening, all their other patients achieved a good functional result.…”

Trapezial dysplasia and concomitant disorders around the thumb can influence the outcome after total carpometacarpal joint replacement: Report of two cases, short review of literature, and update to the Arpe™ prosthesis

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