Mid-Term Outcomes Following Trapeziectomy With Suture Suspensionplasty for Thumb Carpometacarpal Joint Osteoarthritis.

Purpose: In the treatment of symptomatic thumb carpometacarpal joint arthritis, numerous techniques have been used to maintain the trapezial space following trapeziectomy. The purpose of this study was to report the clinical and radiographic outcomes of the suture suspensionplasty technique. The hypothesis was that suture suspensionplasty would have similar clinical and radiographic outcomes compared with other techniques aimed at maintaining the trapezial space following trapeziectomy.

Methods: Data were collected on 42 patients following trapeziectomy with suture suspensionplasty for symptomatic Eaton stage II-IV carpometacarpal osteoarthritis at an average follow-up of 2.1 years. Outcomes included the Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) questionnaire, visual analog scale for pain, radiographic analysis of subsidence, and physical examination of lateral pinch strength and thumb opposition.

Results: Radiographs demonstrated that 42% of the trapezial space was maintained at 2.1 years following trapeziectomy with suture suspensionplasty. Median postoperative QuickDASH scores were 3.4 (first quartile, 0; third quartile, 15.9), which is consistent with or better than normative values in the population. Median postoperative visual analog scale scores were 0 (first quartile, 0; third quartile, 0) with good postoperative thumb opposition and pinch strength.

Conclusions: Patients who underwent trapeziectomy with suture suspensionplasty had similar functional and radiographic outcomes at an average of 2.1 years after surgery compared with other techniques used for treatment of symptomatic thumb carpometacarpal joint arthritis.

Type of study/level of evidence: Therapeutic IV.