Lead Sponsor

Schulthess Klinik

Collaborators

Age

All ages

Sex

ALL

Healthy Volunteers

Yes

•Patients will be included in the study if they have provided written general consent for the use of their clinical data and meet the requirements of one of the following two groups:
•TMC OA group:
•Patients who received a Touch implant for TMC joint arthroplasty and are documented in our clinical registry
•Other clinical conditions:
•Patients who underwent radiographic imaging for one of the following conditions, with a clearly visible TMC joint, for example: Distal radius fracture, carpal fracture, finger dislocation, or similar.

•TMC OA group:
•Patients with posttraumatic OA.
•Patients with rheumatoid arthritis.
•Other clinical conditions:
•Eaton Littler score higher than one.
•Prior surgery affecting the trapezium or the first metacarpal.
•Clinical condition resulting in abnormal TMC joint morphology.
•Furthermore, patients will also be excluded if they revoke their consent in writing or via verbal withdrawal.