Predictive factors for deep medial collateral ligament release in adjusted mechanical alignment total knee arthroplasty
3
Issued Date
2024-09-28
Resource Type
eISSN
1749799X
Scopus ID
2-s2.0-85205336172
Pubmed ID
39342361
Journal Title
Journal of orthopaedic surgery and research
Volume
19
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of orthopaedic surgery and research Vol.19 No.1 (2024) , 594
Suggested Citation
Thongpulsawasdi N., Achawakulthep C., Intiyanaravut T., Anusitviwat C., Yuenyongviwat V. Predictive factors for deep medial collateral ligament release in adjusted mechanical alignment total knee arthroplasty. Journal of orthopaedic surgery and research Vol.19 No.1 (2024) , 594. doi:10.1186/s13018-024-05046-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/101519
Title
Predictive factors for deep medial collateral ligament release in adjusted mechanical alignment total knee arthroplasty
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
BACKGROUND: Total knee arthroplasty (TKA) demands precision in achieving optimal alignment and soft tissue balance, especially in cases of medial compartment osteoarthritis where the need for medial soft tissue release is critical yet challenging to ascertain. OBJECTIVE: This study aims to systematically investigate the relationship between preoperative data, initial knee conditions and the necessity for deep collateral ligament (MCL) release in adjusted mechanical alignment total knee arthroplasty. METHODS: We conducted a retrospective study involving 61 TKA patients who underwent adjusted mechanical alignment robotic-assisted procedures. Soft tissue release was carried out when clinically indicated. We collected and statistically analyzed patient demographics, initial knee conditions, and surgical details. RESULTS: Among the patients, 52% required deep MCL release. Notably, patients without soft tissue release exhibited lower initial hip-knee-ankle (HKA) angles, reduced varus-valgus stress test angles, and a greater range of flexion. We identified a predictive threshold HKA angle of 6.250 degrees, demonstrating high sensitivity and specificity for determining the need for deep MCL release. CONCLUSION: This study underscores the significance of the initial HKA angle and varus-valgus stress tests in predicting deep MCL release during TKA. The established HKA angle threshold simplifies surgical decision-making, reducing the likelihood of unnecessary soft tissue release.