Simplified interposition arthroplasty in CMC1 (2022)
A study published in 2022 by Sander, Buhrmann, Sommer, and Frank presents a simplified surgical method for treating thumb carpometacarpal (CMC) joint osteoarthritis. The technique combines a single-loop suspension of the abductor pollicis longus (APL) tendon around the flexor carpi radialis (FCR) tendon with the RegJoint™ implant as an interpositional spacer.
Key results from 21 patients (mean follow-up: 27.7 months):
- Excellent pain relief (VAS 0.3 at rest, 1.4 under load)
- Near-normal range of motion (radial and palmar abduction 97–99% compared to the opposite side)
- Good grip and pinch strength
- DASH score averaged 18.5
- Few complications, no tissue reactions or implant-related issues
Full reference hier, link to publication below:
Sander A. L., Buhrmann C. F., Sommer K., Frank J. (2022). Simplified abductor pollicis longus suspension interposition arthroplasty for thumb carpometacarpal joint osteoarthritis. European Journal of Trauma and Emergency Surgery.
https://doi.org/10.1007/s00068-020-01577-w