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Published on: May 5, 2023
High-flexion total knee arthroplasty: a systematic review.
Michael Murphy1, Simon Journeaux, Trevor Russell
1Department of Orthopaedics, Mater Health Services, Raymond Terrace, South Brisbane, 4101, Australia. michael.murphy@mater.org.au
International Orthopaedics
|April 9, 2009
Summary
High-flexion total knee arthroplasty aims to improve knee movement. However, current evidence suggests insufficient proof of enhanced range of motion or function, with methodological limitations in existing studies.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Rehabilitative Medicine
Background:
- Total knee arthroplasty (TKA) is a common procedure for end-stage knee osteoarthritis.
- Traditional TKA implants may limit postoperative knee flexion.
- High-flexion TKA implants are designed to allow for greater range of motion.
Purpose of the Study:
- To systematically review the outcomes of high-flexion total knee arthroplasty.
- To evaluate evidence for improved knee flexion and functional performance compared to standard implants.
Main Methods:
- Systematic literature review of comparative English language studies.
- Computerized literature search and bibliography review.
- Inclusion of nine studies with 399 high-flexion TKAs in 370 patients.
Main Results:
- Five studies reported increased flexion or range of motion.
- Methodological limitations included inadequate blinding, flawed participant selection, and short follow-up.
- Functional outcomes lacked sensitivity, questioning the reported improvements.
Conclusions:
- Insufficient evidence supports improved range of motion after high-flexion TKA.
- Further high-quality research is needed to validate functional benefits.
- Current evidence does not conclusively demonstrate superior functional performance for high-flexion implants.