G Merolla1,2, S Del Sordo3, P Paladini4, G Porcellini4. 1. Unit of Shoulder and Elbow Surgery, D. Cervesi Hospital, Cattolica, Rimini, Italy. giovannimerolla@hotmail.com. 2. Laboratory of Biomechanics "Marco Simoncelli", D. Cervesi Hospital, Cattolica, Italy. giovannimerolla@hotmail.com. 3. Orthopedic and Trauma Unit, "Santa Chiara" Hospital, Trento, Italy. 4. Unit of Shoulder and Elbow Surgery, D. Cervesi Hospital, Cattolica, Rimini, Italy.
Abstract
BACKGROUND: Ulnar collateral ligament (UCL) has the main function to be stress-resistant to elbow valgus overload. Multilayer tears require a reconstruction with a tendon graft. In this study, we report the clinical, radiographic, and ultrasound outcomes after tendon graft reconstruction for symptomatic UCL insufficiency. MATERIALS AND METHODS: Among twenty-six subjects underwent elbow UCL reconstruction from 2006 to 2012, fifteen were available to be evaluated at a mean follow-up of 36 months. Preoperative assessment included clinical examination and MRI. The outcome measures were the Mayo Elbow Performance Score (MEPS); the Oxford Elbow Score (OES); the Disabilities of the Arm, Shoulder, and Hand (DASH); and the Conway-Jobe Scale. Overall population was postoperatively investigated with X-ray and ultrasound (US). Reconstruction was performed with autograft (palmaris longus) in five cases and allograft (semitendinosus) in ten cases using the figure-of-eight configuration (five cases), the docking technique (eight cases), or a fixation with screws (two cases). RESULTS: We found a significant improvement in postoperative MEPS, OES, and DASH scores (p < 0.01). One case was unsatisfied and required an additional procedure of ulnar nerve transposition 12 months after the reconstruction. X-ray showed calcifications along the graft in ten cases. At US examination, all the grafts assessed appeared anatomically intact without structural changes, and the dynamic examination showed a slight medial laxity with the valgus stress maneuver without pain or other sign of medial instability. CONCLUSIONS: This study confirms the efficacy of the graft reconstruction for chronic UCL insufficiency and introduces fresh insight on the role of musculoskeletal ultrasound to evaluate the reconstructed UCL.
BACKGROUND: Ulnar collateral ligament (UCL) has the main function to be stress-resistant to elbow valgus overload. Multilayer tears require a reconstruction with a tendon graft. In this study, we report the clinical, radiographic, and ultrasound outcomes after tendon graft reconstruction for symptomatic UCL insufficiency. MATERIALS AND METHODS: Among twenty-six subjects underwent elbow UCL reconstruction from 2006 to 2012, fifteen were available to be evaluated at a mean follow-up of 36 months. Preoperative assessment included clinical examination and MRI. The outcome measures were the Mayo Elbow Performance Score (MEPS); the Oxford Elbow Score (OES); the Disabilities of the Arm, Shoulder, and Hand (DASH); and the Conway-Jobe Scale. Overall population was postoperatively investigated with X-ray and ultrasound (US). Reconstruction was performed with autograft (palmaris longus) in five cases and allograft (semitendinosus) in ten cases using the figure-of-eight configuration (five cases), the docking technique (eight cases), or a fixation with screws (two cases). RESULTS: We found a significant improvement in postoperative MEPS, OES, and DASH scores (p < 0.01). One case was unsatisfied and required an additional procedure of ulnar nerve transposition 12 months after the reconstruction. X-ray showed calcifications along the graft in ten cases. At US examination, all the grafts assessed appeared anatomically intact without structural changes, and the dynamic examination showed a slight medial laxity with the valgus stress maneuver without pain or other sign of medial instability. CONCLUSIONS: This study confirms the efficacy of the graft reconstruction for chronic UCL insufficiency and introduces fresh insight on the role of musculoskeletal ultrasound to evaluate the reconstructed UCL.
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