Assessment of Flexion Strength Following Single- Versus Double-Hamstring Tendon Harvest for Anterior Cruciate Ligament Reconstruction
| Autor: | Patrick Sweeney, Earvin S. Balderama, Patrick Nelson, Daniel J. Johnson, John Tuttle, Alex Hu, Michael A. Terry, Cort D. Lawton, Ryan S. Selley, Stephen M. Gryzlo |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Joint Instability Male musculoskeletal diseases medicine.medical_specialty Knee Joint Anterior cruciate ligament reconstruction Anterior cruciate ligament medicine.medical_treatment Posture Squat Isometric exercise Young Adult 03 medical and health sciences 0302 clinical medicine Humans Medicine Orthopedics and Sports Medicine Patient Reported Outcome Measures Range of Motion Articular Autografts Retrospective Studies 030222 orthopedics Anterior Cruciate Ligament Reconstruction business.industry Anterior Cruciate Ligament Injuries Hamstring Tendons 030229 sport sciences Middle Aged musculoskeletal system Surgery medicine.anatomical_structure Gracilis tendon Knee laxity Gracilis Muscle Female Hamstring tendon business Hamstring |
| Zdroj: | Arthroscopy: The Journal of Arthroscopic & Related Surgery. 36:1409-1416 |
| ISSN: | 0749-8063 |
| DOI: | 10.1016/j.arthro.2020.01.019 |
| Popis: | To compare isometric hamstring strength deficits, knee laxity, functional outcomes, and patient-reported outcomes between patients who underwent anterior cruciate ligament (ACL) reconstruction with doubled semitendinosus and gracilis tendon autograft (ST/G) versus quadrupled semitendinosus autograft (ST), at a minimum follow-up of 1-year postoperatively.Patients who underwent ACL reconstruction with ST/G or ST hamstring autografts were retrospectively identified. Isometric hamstring strength was tested with a hand-held dynamometer at 30, 60, and 90° of knee flexion. Anterior knee laxity was assessed using a KT-1000 arthrometer. Functional outcomes were collected using the single-leg hop test and single-leg squat test. Side-to-side differences were determined and compared between the ST/G and ST groups. Patient-reported outcomes were collected on all patients.Eighty-four patients who underwent ST/G (n = 34) or ST (n = 50) autograft ACL reconstruction were recruited to participate in this study. There was no difference in knee laxity between the groups. Side-to-side hamstring strength deficits increased with increased flexion angles. At 90° of flexion, the ST/G group had a significantly greater flexion strength deficit compared with the ST group (37.8 ± 15.1% vs 24.7 ± 12.5%, P.001). Aside from a significant difference in the KOOS pain Score (P .045), no other significant differences in functional or patient reported outcomes between the groups were identified.Patients who underwent ACL reconstruction with ST/G compared with ST autograft have a significantly greater isometric flexion strength deficit at 90° of flexion. Future investigations are required to determine the clinical relevance of this difference and whether specialized therapy protocols can mitigate this deficit.Level III, retrospective comparative study. |
| Databáze: | OpenAIRE |
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