Trial reportJoint diseases and related surgery2025
Does the gap balance technique really elevate the joint line in total knee arthroplasty? A single-center, randomized study.
Trial report in Joint diseases and related surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The trial behind it
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Who cites it
3 citing papers in PubMed.
- [Application of transverse tibial axis reference method in rotational positioning of femoral prosthesis in total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Article
- The grand piano ratio: an adjunctive intraoperative screening tool for detecting excessive femoral component external rotation in total knee arthroplasty.Archives of orthopaedic and trauma surgery · 2026Article
- Comparison of Mid-Term Clinical and Radiologic Outcomes Between Measured Resection Technique and Gap Balanced Technique After Total Knee Arthroplasty Using Medial Stabilizing Technique for Severe Varus Knee: A Propensity Score-Matched Analysis.Journal of clinical medicine · 2025Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThis study aims to compare patients undergoing total knee arthroplasty (TKA) with gap balancing (GB) versus measured resection (MR) techniques in terms of joint line (JL) using radiographic measurements from both femoral and tibial sides. PATIENTS AND
methodsBetween August 2019 and May 2021, a total of 107 patients who underwent TKA were included in this randomized study. The patients were divided into two groups as the GB group (n=54; 9 males, 45 females; mean age: 66.6±7.4 years; range, 51 to 81 years) and the MR group (n=53; 10 males, 43 females; mean age: 64.0±6.8 years; range, 50 to 80 years). The adductor tubercle joint line (ATJL) and the tibial tubercle joint line (TTJL) were evaluated for JL measurement. Clinical and functional evaluation was made using the range of motion of the joint, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, Knee Society Score (KSS)-Knee and Functional scores.
resultsThe mean follow-up was 34.2±3.5 months in the GB group and 34.4±3.3 months in the MR group (p=0.80). The mean operation time was 119.1±14.9 min in the GB group and 118.6±17.5 min in the MR group (p=0.89). A total of 31 (57.4%) patients in the GB group had a degree of release of 3-4, while 21 (39.6%) patients in the MR group had a degree of release of 3-4 (p=0.26). The ATJL measurement was similar in the GB and MR groups, while the TTJL measurement was significantly different between the two groups (p=0.01). There was no significant correlation between the ATJL measurement and the degree of release, while there was a significant correlation between the TTJL and the degree of release (r=0.731, p<0.001).
conclusionWhile ATJL measurements in TKA showed similar results with GB and MR techniques, the amount of release may have caused the significantly higher JL elevation in the GB group in TTJL measurements. Based on these findings, we suggest that radiographic JL measurements on both the tibial and femoral sides in TKA may provide a more accurate assessment and we recommend to measure JL from the femoral side.
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