Arthroscopic Transosseous Repair Of Foveal Tears Of The Triangular Fibrocartilage Complex: A Systematic Review Of Clinical Outcomes

Purpose: To determine whether arthroscopic transosseous foveal repair of the triangular fibrocartilage complex (TFCC) results in significant and clinically relevant improvement in clinical outcomes including pain and function with low complication and reoperation rates.Methods: We reviewed studies investigating the clinical outcomes of arthroscopic transosseous foveal repair of the TFCC through MEDLINE, Embase, and the Cochrane Library. Studies on TFCC repair performed with an open or capsular technique and combined with other procedures, such as ulnar shortening osteotomy and a wafer procedure, were excluded. Methodologic quality was assessed using the Methodological Index for Non-randomized Studies score. Clinical outcomes were assessed using range of motion, grip strength, and patient-reported outcomes. Clinically relevant improvement was determined using the minimal clinically important difference (MCID). Results: A total of 443 unique studies were identified, of which 7 (131 patients) met the inclusion criteria. The mean age ranged from 27 to 37 years, and the mean followup period ranged from 23.5 to 31.1 months. The grip strength (as a percentage) increased after foveal repair of the TFCC in all studies (mean difference range, 11.8% to 22.3%). All studies also reported an improvement in the visual analog scale score (mean difference range, -9.8 to -1.88); Modified Mayo Wrist Score (mean difference range, 10.5 to 27); and Disabilities of the Arm, Shoulder and Hand score (mean difference range, -51.8 to -24.48). Considering clinically relevant improvements based on the MCID, 4 of 5 studies reporting the visual analog scale score showed improvements in this score (MCID, 2) and all studies reporting the Disabilities of the Arm, Shoulder and Hand score showed improvements in this score (MCID, 10). Most complications recovered without any treatment, and 3 patients (2.29%) needed a reoperation.Conclusions: Arthroscopic transosseous foveal repair of the TFCC resulted in improvements in grip strength and functional outcomes with low complication and reoperation rates. However, the evidence for which technique produces better clinical outcomes remains limited.Level of Evidence: Level IV, systematic review of Level III and IV studies.