ArticleKnee surgery & related research2015
Significant Incidence of Extra-Articular Tibia Vara Affects Radiological Outcome of Total Knee Arthroplasty.
Article in Knee surgery & related research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Comparison of kinematic and mechanical alignment techniques in primary total knee arthroplasty: A meta-analysis.Medicine · 2017Pooled it
- Registration of Proximal Tibial Centre May Need to be Selectively Lateralized to Avoid Coronal Malalignment in Digitally-Assisted Knee Arthroplasty.Indian journal of orthopaedics · 2022Article
- [Value of personalized extramedullary positioning technique on tibia side for coronal alignment of tibial 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 · 2022Article
- Navigated Unicompartmental Knee Arthroplasty: A Different Perspective.Clinics in orthopedic surgery · 2021Article
- Comparative Study of Pinless Navigation System versus Conventional Instrumentation in Total Knee Arthroplasty.Clinics in orthopedic surgery · 2021Observational
- Lateral Coronal Bowing of Femur and/or Tibia Amplifies the Varus Malalignment of Lower Limb as well as Increases Functional Disability in Patients with Knee Osteoarthritis.Indian journal of orthopaedics · 2021Article
- Coronal Alignment of the Lower Extremity: A Gender-Based Radio-Graphic Analysis in Indian Patients.Indian journal of orthopaedics · 2020Article
- Extra-articular deformities in arthritic knees-a grueling challenge for arthroplasty surgeons: An evidence-based update.Orthopedic reviews · 2017Article
- A radiographic analysis of alignment in 966 lower extremities with knee pain and its association with osteoarthritis in Indian population.Journal of orthopaedicsArticle
- Antero-posterior axis of tibia in patient undergoing total knee replacement in Indian population.Journal of clinical orthopaedics and traumaArticle
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo identify and quantify the presence of extra-articular tibia vara that might influence the mechanical axis alignment after total knee arthroplasty (TKA). MATERIALS AND
methodsA total of 48 TKAs in 30 osteoarthritic Indian patients were prospectively evaluated. The hip-knee-ankle angle (HKA), joint line convergence angle, and varus angulation at the femur and tibia were measured from the preoperative and postoperative standing hip-to-ankle radiographs. Four different methods were used to measure the varus angulation at the tibia: metaphyseo-diaphyseal angle (MDA), the angle between the anatomical axis and mechanical axis of the tibia, the angle between the proximal third and distal third of tibia and the angle between the proximal half and distal half of tibia.
resultsExtra-articular tibia vara quantified using MDA had the most positive correlation with HKA. Receiver operating characteristic plotting showed that MDA of >4° predicts abnormal postoperative HKA. Twenty-eight out of 48 knees had MDA of >4°, and 78.6% of these had postoperative HKA under-correction and 21.4% had less than ideal tibial component position.
conclusionsA significant inherent extra-articular varus angulation best measured using MDA exists in the proximal tibia in osteoarthritic Indian patients undergoing TKA. MDA of >4° is associated with abnormal postoperative HKA. Computer navigation may be useful for achieving ideal correction in such cases.
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