There was no significant correlation between acceptable alignment according to radiological parameters and short- or medium-term functional outcome in patients older than 60 years with extra-articular DRF treated conservatively.

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II.

Several open and arthroscopic techniques for repair triangular fibrocartilage complex (TFCC) tears have been used. The aim of this study, using a cadaveric model, was to compare the biomechanical resistance to the pronosupination movement of arthroscopic repair with anchor and pull-out techniques in TFCC tears of Atzei type II lesions. Eighteen forearms of cadaveric specimens were evaluated arthroscopically, of which 12 were selected according to the inclusion criteria. All specimens were injured with an Atzei type II lesion and were repaired arthroscopically. Six forearms were repaired using the anchor technique and the other six with the pull-out technique. To assess the biomechanical resistance of the repair, the forearms were tested to 300 cycles of 160° pronosupination. Two evaluators independently assessed the repair status every 10 cycles and the modified Desai classification was used to verify the presence of failure. The mean failure of the repair occurred at 41.6 cycles (SD 7.5) for the pull-out technique and at 28.3 cycles (SD 9.8) for the anchor technique, showing a difference of 13.3 cycles ( p = 0.025) in favor of the pull-out technique. In all cases, repair failure occurred at the junction of the fibrocartilage with the suture. Arthroscopic repair with the pull-out technique showed greater biomechanical resistance to pronosupination movement in comparison to the anchor technique. Interestingly, the failure of arthroscopic repair of Atzei type II lesions occurs at the junction between the suture and the fibrocartilage.

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