Notchplasty in Anterior Cruciate Ligament Reconstruction: An Experimental Animal Study
| Autor: | Yoichi Ezura, Shintaro Asahina, Takeshi Muneta |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Cartilage
Articular Male medicine.medical_specialty Anterior cruciate ligament reconstruction medicine.medical_treatment Anterior cruciate ligament Arthroplasty medicine Animals Orthopedics and Sports Medicine Anterior Cruciate Ligament medicine.diagnostic_test business.industry Cartilage Arthroscopy Biomechanics Patella Anatomy musculoskeletal system Biomechanical Phenomena Hindlimb surgical procedures operative medicine.anatomical_structure Orthopedic surgery Rabbits business human activities |
| Zdroj: | Arthroscopy: The Journal of Arthroscopic & Related Surgery. 16:165-172 |
| ISSN: | 0749-8063 |
| DOI: | 10.1016/s0749-8063(00)90031-8 |
| Popis: | The purpose of this study was to evaluate the effects of a notchplasty on the biomechanical and histological properties of the anterior cruciate ligament (ACL) and changes in patellar articular cartilage. We used an in situ freeze-thaw model for the ACL reconstruction performed with or without notchplasty in 36 Japanese white rabbits. The cross-sectional area of the regenerated ACLs without a notchplasty (6.4 +/- 0.4 mm(2)) was statistically smaller than that of the ACLs with a notchplasty (7.0 +/- 0.3 mm(2)), and the cross-sectional area of the normal ACLs (5.4 +/- 0.5 mm(2)) was statistically smaller than that of both other types. However, the mechanical strength of the ACL with the notchplasty was identical to that of the ACL without a notchplasty. Although the notchplasty areas were covered with fibrous scar tissue, caliper measurement and histological examination showed no obvious osteochondral reconstitution in the notchplasty sites of any of the specimens. Regarding the deleterious effect of notchplasty on patellar articular cartilage, the extent of the slight degenerative changes was about the same in the group with a 1-mm notchplasty and in the control group. |
| Databáze: | OpenAIRE |
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