Arthroscopic one-tunnel transosseous reconstruction of chronic triangular fibrocartilage complex foveal tears: outcomes in 12 patients

We report the surgical method and outcomes of a simple arthroscopic-assisted technique of repairing triangular fibrocartilage complex (TFCC) foveal injuries in 12 patients with chronic distal radioulnar joint instability. An ulnar transosseous tunnel was created with its distal exit point located 3 to 4 mm radial to the fovea. A tendon graft was cut into two parts, and both were then passed through the bone tunnel to secure the radioulnar ligament remnants back to the fovea in a 'V' shape configuration. At the final follow-up of 13 to 26 months (average 21), all patients had a reduction of wrist pain, with the mean visual analogue scale dropped from 4.6 to 1.6 out of 10. The distal radioulnar joint was completely stable in nine patients and had improved stability in three patients. The mean Mayo modified wrist scores improved from 72 to 89, and the clinical outcomes were excellent in four patients, good in seven and fair in one. No major surgical complications occurred. This simple arthroscopic one-tunnel transosseous approach is effective for chronic foveal tears of the TFCC with intact radioulnar ligament remnants.Level of evidence: IV.