Flexion deformity and laxity as a function of knee position at the time of tensioning of rigid anatomic hamstring ACL grafts
| Autor: | William B. O’Callaghan, Sarah G. Brereton, Milford McArthur, Peter McEwen, Matthew Wilkinson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Physical Therapy Sports Therapy and Rehabilitation Knee extension 03 medical and health sciences Fixation (surgical) 0302 clinical medicine medicine Anterior cruciate Isometricity Orthopedics and Sports Medicine Computer navigation Tibial rotation Full extension lcsh:Sports medicine Orthodontics 030222 orthopedics business.industry Rehabilitation Anatomic 030229 sport sciences musculoskeletal system medicine.anatomical_structure Ligament Flexion deformity Original Article Reconstruction business lcsh:RC1200-1245 Hamstring |
| Zdroj: | Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology, Vol 22, Iss, Pp 67-73 (2020) Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
| ISSN: | 2214-6873 |
| Popis: | Background: Anatomic ACL grafts routinely display the anisometric length-tension behaviour seen in the native ligament with maximum length in full knee extension. Recent improvements in hamstring graft preparation and fixation have improved graft rigidity to the point where total graft lengthening after implantation may be less than 1 mm. Despite this it remains common practice to fix these grafts in a knee flexed position. Methods: Nineteen participants underwent all-inside ACL reconstruction with optimally preconditioned 4 strand semitendinosus grafts using bi-cortical adjustable suspensory loop fixation. Using a computer navigation system, baseline measures of anisometricity, extension range, and tibial rotation were made. The graft was tensioned and provisionally fixed with the knee flexed 5° beyond its anisometric point and extension range recorded. The graft was then definitively fixed with the knee fully extended and extension range and tibial rotation recorded again. Anterior laxity measurements were made pre-operatively and postoperatively using a manual arthrometer and compared to those from the contralateral limb. Results: Fixing the graft with the knee flexed produced a mean FD of 10.9° (p |
| Databáze: | OpenAIRE |
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