NEW ORLEANS — Carpometacarpal arthroplasty with ligament reconstruction and tendon interposition yielded low revision rates when performed on patients younger than the age of 50 with symptomatic carpometacarpal arthritis, according to results presented at the American Academy of Orthopaedic Surgeons Annual Meeting.
In a prospective evaluation of 144 patients younger than the age of 50 years with carpometacarpal arthritis who underwent carpometacarpal arthroplasty, Raymond G. Gaston, MD, and colleagues found an 8° loss of flexion at the metacarpophalangeal joint of the operative thumb vs. the nonoperative thumb. This findings was statistically significant, but questionably clinically relevant. Compared with the contralateral side, Gaston noted no statistically significant differences in metacarpophalangeal extension, interphalangeal range of motion and grip, and pinch strength.
Raymond G. Gaston
“Patient-reported outcome measurements were excellent overall with mean visual analog scales of 1 and a median of 0, mean satisfaction of almost 9 and a median of 10, and a median DASH score of 8,” Gaston said in his presentation.
At long-term follow-up, 78% of patients reported no pain, according to Gaston. Results showed a rate of revision of 10%, which was not affected by patient sex.
“Notably, however, when you excluded the patients that had hemitrapeziectomy, there were only six revisions in the remainder of the cohort for a rate of only 5.6%,” Gaston said. – by Casey Tingle
Buck J, et al. Paper #380. Presented at: American Academy of Orthopaedic Surgeons Annual Meeting; March 6-10, 2018; New Orleans.
Disclosure: Gaston reports he is a board or committee member for the American Society for Surgery of the Hand; is a paid presenter or speaker for Auxilium, Biomet and Smith & Nephew; receives IP royalties from Biomet; is a paid consultant for Biomet and BME; and is on the editorial or governing board for Journal of Hand Surgery.