Development and validation of a prediction model for knee joint line orientation after high tibial osteotomy View Full Text


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Article Info

DATE

2019-09-17

AUTHORS

Jae-Young Park, Chong Bum Chang, Dong-Wan Kang, Sohee Oh, Seung-Baik Kang, Myung Chul Lee

ABSTRACT

BackgroundMaintenance of optimal knee joint line orientation (KJLO) is important after high tibial osteotomy (HTO). No tools, however, are currently available that could predict the value of postoperative KJLO before surgery. First, this study sought to determine the effects of various preoperative anatomical alignment parameters to postoperative KJLO. Based upon these analyses, we aimed to devise an equation that predicts the value of postoperative KJLO.MethodsA total of 14 radiographic parameters were measured in preoperative and postoperative full-limb standing anteroposterior radiographs on 50 patients who underwent open-wedge HTO. The parameters were analysed using multivariable linear regression to predict KJLO after HTO. External validation of the equation was done with 20 patients who underwent HTO at another institution.ResultsAfter HTO, KJLO increased from − 0.8° to 2.9° (P < 0.001). Based on the multivariable linear regression analysis, an equation was derived that can estimate postoperative KJLO after HTO; postoperative KJLO(°) = 1.029 + 0.560 × preoperative KJLO(°) + 0.310 × preoperative tibia plateau inclination(°) + 0.463 × aimed correction angle(°). The adjusted coefficients of determination value for this equation was 0.721. The equation also showed good calibration and predictability in external validation with predicted squared correlation coefficient of 0.867.ConclusionsThis study analysed the effects of preoperative anatomical alignment parameters on the postoperative KJLO. An equation which predicts postoperative KJLO with preoperative anatomical alignment factors was devised and validated. This equation would help in selecting optimal patients for HTO and in selecting the optimal target correction angle in HTO. More... »

PAGES

434

References to SciGraph publications

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  • 2012-06-29. Outcome after high tibial open-wedge osteotomy: a retrospective evaluation of 533 patients in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2009-01-13. Varus inclination of the proximal tibia or the distal femur does not influence high tibial osteotomy outcome in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2013-06-04. Constitutional Varus Does Not Affect Joint Line Orientation in the Coronal Plane in CLINICAL ORTHOPAEDICS AND RELATED RESEARCH®
  • 2012-07-07. Biomechanics of high tibial osteotomy in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2017-08-22. Large correction in opening wedge high tibial osteotomy with resultant joint-line obliquity induces excessive shear stress on the articular cartilage in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
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  • 2009-07-24. Osteotomien am Kniegelenk bei Monokompartmentarthrose in DIE ORTHOPÄDIE
  • 2000-05. Anatomic variations should be considered in total knee arthroplasty in JOURNAL OF ORTHOPAEDIC SCIENCE
  • 2009-08-27. Correction accuracy and collateral laxity in open versus closed wedge high tibial osteotomy. A one-year randomised controlled study in INTERNATIONAL ORTHOPAEDICS
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    http://scigraph.springernature.com/pub.10.1186/s12891-019-2820-9

    DOI

    http://dx.doi.org/10.1186/s12891-019-2820-9

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1121036533

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/31526379


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