ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020
The unicompartmental knee is the preferred side in individuals with both a unicompartmental and total knee arthroplasty.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Robotic arm-assisted bi-unicompartmental knee arthroplasty maintains natural knee joint anatomy compared with total knee arthroplasty: a prospective randomized controlled trial.The bone & joint journal · 2020Trial
- Biomechanical analysis of femoral component malalignment in medial unicompartmental knee arthroplasty.Scientific reports · 2025Article
- Conversion of UKA to TKA using identical standard implants-How does it compare to primary UKA, primary TKA and revision TKA?Arthroplasty (London, England) · 2024Article
- Cruciate-Retaining Total Knee Arthroplasty versus Unicompartmental Knee Arthroplasty in Medial Compartmental Osteoarthritis: A Propensity Score-Matched Analysis of Early Postoperative Recovery.Orthopedic research and reviews · 2024Article
- Comparison of accuracy for hip-knee-ankle (HKA) angle by X-ray and knee motion analysis system and the relationships between HKA and gait posture.BMC musculoskeletal disorders · 2023Article
- The compartmental approach to revision of partial knee arthroplasty results in nearer-normal gait and improved patient reported outcomes compared to total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Unicompartmental knee arthroplasty has higher revisions than total knee arthroplasty at long term follow-up: a registry study on 6453 prostheses.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Comparison of Functional Outcome of Total and Unicompartmental Knee Arthroplasty Using Computer-Assisted Patient-Specific Templating.Advances in orthopedics · 2021Article
- The extensor efficiency of unicompartmental, bicompartmental, and total knee arthroplasty.Bone & joint research · 2021Article
- Lower limb kinematics of unicompartmental knee arthroplasty individuals during stair ascent.Journal of orthopaedicsArticle
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Authors and funding
6 authors.
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Abstract
purposeTo determine the preferred knee in patients with both one total and one unicompartmental knee arthroplasty.
methodPatients simply with a unicompartmental (UKA) and total knee arthroplasty (TKA) on contralateral sides were retrospectively screened from three senior knee surgeon's logs over a 15 year period. Patients safe and free from other diseases to affect gait were approached. A total of 16 patients (mean age 70 ± 8) agreed to ground reaction force testing on an instrumented treadmill at a fair pace and incline. A gender-ratio identical group of 16 healthy control subjects (mean age 67 ± 10) and 16 patients with ipsilateral medial knee OA (mean age 66 ± 7) were analysed to compare.
resultsRadiographically the mode preoperative Kellgren-Lawrence knee grade for each side was 3. Postoperatively, the TKA side had a mean coronal femoral component alignment of 7° and a mean tibial coronal alignment of 89° with a mean posterior slope of 5° in the sagittal plane. The UKA side had a mean coronal femoral component alignment of 7° and a mean tibial coronal alignment of 86° with a mean posterior slope of 4° in the sagittal plane. In 7 patients, the TKA was the first procedure, while 6 for the UKA and 3 done simultaneously. Gait analysis demonstrated in both walking conditions the UKA limb was the preferred side through all phases of loading (p < 0.05) and nearer to normal than the TKA limb when compared to healthy controls and patients with knee OA. The greatest difference was observed between the transition of weight acceptance and midstance (p = 0.008), when 22% more load was taken by the UKA side.
conclusionBy using a dynamic metric of an everyday activity, a distinct gait difference between differing arthroplasty types were established. A more natural loading pattern can be achieved with unicompartmentals as compared to total knees. LEVEL OF EVIDENCE: Retrospective comparative study, Level III.
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