Midflexion Laxity After Implantation Was Influenced by the Joint Gap Balance Before Implantation in TKA.
prospective_cohort · Level II
Where this comes from
- Record sourced from PubMed, PMID 25481296.
- Also identified by DOI 10.1016/j.arth.2014.11.011.
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Abstract
The relationship between the joint gap before and after implantation in 259 knees during the total knee arthroplasty was investigated using a tensor device which can attach the polyethylene insert trial. Patients were divided into following 3 groups according to the joint gap balance before implantation (flexion joint gap--extension joint gap); group 1: >1mm; group 2: -1 to 1mm, and group 3: <-1mm. Joint gap after implantation was loose at 30°, 60°, 90°, and 120° of flexion in group 1 and 2, but loose only at 30° of flexion in group 3 (p<0.01). This study showed that loose flexion joint gap before implantation increased the risk of joint gap laxity after implantation especially at midflexion ranges.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Joint Instability
- Range of Motion, Articular
Anatomy
- knee