Effect of medial collateral ligament release and osteophyte resection on medial laxity in total knee arthroplasty
| Autor: | Hironori Otsuka, Eiichi Tsuda, Yuji Yamamoto, Yasuyuki Ishibashi, Shizuka Sasaki, Harehiko Tsukada, Eiji Sasaki, Yuka Kimura |
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| Rok vydání: | 2020 |
| Předmět: |
Joint Instability
musculoskeletal diseases medicine.medical_specialty Knee Joint Sports medicine Anterior cruciate ligament Medial Collateral Ligament Knee Meniscus (anatomy) 03 medical and health sciences 0302 clinical medicine medicine Humans Orthopedics and Sports Medicine Prospective Studies Range of Motion Articular Stage (cooking) Arthroplasty Replacement Knee Prospective cohort study 030222 orthopedics Medial collateral ligament biology business.industry Osteophyte 030229 sport sciences Osteoarthritis Knee musculoskeletal system biology.organism_classification Biomechanical Phenomena Surgery Valgus medicine.anatomical_structure Orthopedic surgery business human activities |
| Zdroj: | Knee Surgery, Sports Traumatology, Arthroscopy. 29:3418-3425 |
| ISSN: | 1433-7347 0942-2056 |
| Popis: | The concept of medial stabilizing technique total knee arthroplasty (MST-TKA) is to minimize the medial release without the superficial layer of medial collateral ligament (MCL). However, it is unclear at what stage the proper medial laxity is obtained during surgery. The purpose of this study was to investigate the implication of deep layer of MCL (dMCL) and osteophyte resection on medial laxity during MST-TKA. A total of 103 consecutive patients who underwent cruciate-retaining TKA using the navigation system were included. The intraoperative hip–knee–ankle (HKA) angle was recorded under three conditions (no stress, valgus, and varus stress) at four time points after the resection of the anterior cruciate ligament (ACL) and meniscus (1st evaluation), after the dMCL release (2nd evaluation), and after osteophyte resection on both the femoral and tibial side (3rd evaluation). To assess valgus laxity, the differences in intraoperative HKA angle between 1st and 2nd evaluation (stage 1) and between 2nd and 3rd evaluation (stage 2) were calculated. Under the valgus stress condition, the intraoperative HKA angle change in stage 2 was significantly larger than that in stage 1 in full extension (stage 1; − 0.5 ± 1.0°, stage 2; − 2.0 ± 1.3°, p |
| Databáze: | OpenAIRE |
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