ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2013
Joint line changes and outcomes in constrained versus unconstrained total knee arthroplasty for the type II valgus knee.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
25 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Midflexion instability in total knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Pooled it
- The negative effect of joint line elevation after total knee arthroplasty on outcome.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Pooled it
- Change in patellar height in medial and lateral unicompartmental knee arthroplasty: a clinical trial.Archives of orthopaedic and trauma surgery · 2024Trial
- Total knee arthroplasty for valgus deformity correction using "inverted cruciform release": technique and outcomes.BMC musculoskeletal disorders · 2026Article
- Standardizing Joint-Line determination on anteroposterior knee radiographs: multicenter validation of the adductor ratio and a novel composite index in 3000 knees.Archives of orthopaedic and trauma surgery · 2026Article
- Joint line elevation after TKA is higher in patients with metaphyseal deformity: a prospective study.Archives of orthopaedic and trauma surgery · 2025Article
- The performance of cruciate-retaining implants for primary total knee arthroplasty in valgus deformed knees: A systematic review.Journal of orthopaedics · 2025Review
- Influence of Mechanical Deformity on Joint Line Reconstruction.Journal of clinical medicine · 2025Article
- Incidence of constrained condylar and hinged knee implants and mid- to long-term survivorship: a register-based study from the Nordic Arthroplasty Register Association (NARA).Acta orthopaedica · 2025Article
- Modified Medial Collateral Ligament Indentation Technique in Total Knee Arthroplasty with Severe Type II Valgus Deformity.Orthopaedic surgery · 2022Article
- SMOC approach for total knee arthroplasty in valgus knees.Journal of orthopaedic surgery and research · 2022Article
- The Imperial Joint Line Congruency Measurement is a valuable tool in total knee arthroplasty.PloS one · 2021Article
- Total knee arthroplasty with the least-constrained implant possible for type II valgus knee > 20°: a 3-14 years' follow-up.Arthroplasty (London, England) · 2020Article
- Preoperative valgus deformity has twice the risk of failure as compared to varus deformity after total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Medial femoral epicondyle upsliding osteotomy with posterior stabilized arthroplasty provided good clinical outcomes such as constrained arthroplasty in primary total knee arthroplasty with severe valgus deformity.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Preoperative radiographic valgus alignment predicts the extent of lateral soft tissue release and need for constraint in valgus total knee arthroplasty.Arthroplasty today · 2017Article
- Total knee arthroplasty in patients with substantial deformities using primary knee components.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Article
- Reduced operating time but not blood loss with cruciate retaining total knee arthroplasty.Journal of clinical medicine research · 2015Article
- Is a "sulcus cut" technique effective for determining the level of distal femoral resection in total knee arthroplasty?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014Article
- The adductor tubercle as an important landmark to determine the joint line level in total knee arthroplasty: from radiographs to surgical theatre.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe objective of this study was to compare the outcome of constrained and unconstrained primary total knee arthroplasty (TKA) in the management of the valgus deformity.
methodsThis is a retrospective review of patients with type II valgus knee who underwent primary TKA from 1999 to 2011. There were fifty patients in Group 1 who underwent varus-valgus constrained TKA. They were matched with another fifty patients in Group 2 who underwent unconstrained TKA.
resultsThe mean joint line shift was significantly higher in Group 1 (+8 mm, SD 6 mm) than in Group 2 (+2 mm, SD 3 mm) (p = 0.03). At 2 years, there was no difference in anterior-posterior stability and mediolateral stability according to the Knee Society Score, and patients in Group 2 reported significantly better mean function score of 66.2 (SD 9.3) (mean 48, SD 7.1 in Group 1) (p = 0.002). Two patients (6 %) in Group 1 underwent revision surgery--one for a broken central peg and the other for aseptic loosening. Three patients (2 %) in Group 2 underwent revision surgery--two for global instability and one for poly wear. The estimated survivorship time was 8.3 years for constrained TKA and 12.0 for unconstrained TKA.
conclusionConstrained TKA was associated with more significant joint line changes for the management of valgus arthritic knee, when compared with unconstrained TKA. LEVEL OF EVIDENCE: Retrospective study, Level III.
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