外傷性肘関節不安定症に対する縫合テープ増強による靭帯修復術後の転帰における損傷慢性期の有無の影響

Repair and augmentation techniques have been successfully applied in the treatment of acute ligament injuries causing elbow instability. This study evaluates whether the chronicity of elbow instability affects postoperative outcomes following ligament repair with augmentation using suture tape internal bracing.

A retrospective study was conducted on 40 patients (mean follow-up 42.5 months; range, 9-99 months) who underwent ligament repair with suture tape augmentation for traumatic elbow instability between 2013 and 2019. Functional outcomes (DASH, Oxford Elbow Score, MEPS, and VAS) and range of motion (ROM) were assessed. Patients were stratified by chronicity using 6 weeks and 12 weeks as thresholds.

Across the cohort, median postoperative scores were: DASH 5.0 (IQR 1.5-12.7), Oxford 41.0 (IQR 35.0-47.0), MEPS 90.0 (IQR 75.0-100.0), and VAS 1.0 (IQR 0.0-2.0). ROM improvements included flexion-extension arc increase from 135° (IQR 70-145) to 145° (IQR 140-150). No significant differences in functional or ROM outcomes were found between acute and chronic groups using either the 6- or 12-week thresholds.

Ligament repair with suture tape internal brace augmentation for traumatic elbow instability achieves favourable outcomes in both acute and chronic presentations.