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High tibial osteotomy in obese patients: Is successful surgery enough for a good outcome?

ABSTRACT: Introduction:Knee osteoarthritis is the most common articular pathology. High tibial osteotomy (HTO) is a frequently used treatment procedure in medial osteoarthritis of the knee joint. We aimed to reveal factors that affect clinical and radiologic outcomes by evaluating the efficacy of HTO in patients with BMI ?30?kg/m2 who were not appropriate for prostheses considering their activity, degree of pain, and age. Material and method:HTO was performed using the medial open wedge technique who presented to the orthopedics polyclinic with symptoms of knee pain, whose BMI was over 30?kg/m2. All patients were diagnosed as having mechanical axis deviation and isolated medial compartmental arthrosis between 2013 and 2015.The clinical and radiologic follow-ups of patients were performed on day 45, at month 3, month 6, and after 1 year. The knee scoring system from the American Knee Society (AKS), and range of motion (ROM) were used in the functional evaluation of the patients. Result:Eighteen patients were included in the study. Thirteen patients (72.2%) were women and 5 (27.8%) were men. Preop axis score was found significantly lower compared with the axis scores at postop month 6 and in final follow-up, the postoperative final follow-up axis score was found significantly lower than the axis score at month 6 (p?

SUBMITTER: Tuhanioglu U

PROVIDER: S-EPMC6823675 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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High tibial osteotomy in obese patients: Is successful surgery enough for a good outcome?

Tuhanioğlu Ümit Ü Oğur Hasan Ulaş HU Seyfettinoğlu Fırat F Çiçek Hakan H Gültekin Alper A

Journal of clinical orthopaedics and trauma 20181001 Suppl 1

<h4>Introduction</h4>Knee osteoarthritis is the most common articular pathology. High tibial osteotomy (HTO) is a frequently used treatment procedure in medial osteoarthritis of the knee joint. We aimed to reveal factors that affect clinical and radiologic outcomes by evaluating the efficacy of HTO in patients with BMI ≥30 kg/m2 who were not appropriate for prostheses considering their activity, degree of pain, and age.<h4>Material and method</h4>HTO was performed using the medial open wedge tec ...[more]

PMID: 31695277

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Project description:In performing medial open-wedge high tibial osteotomy, it is recommended not to alter the posterior tibial slope. However, it remains unclear whether the osteotomy inclination angle affects the posterior tibial slope in the sagittal plane. This study aimed to verify how anterior or posterior osteotomy inclination angle affects the tendency of change in the posterior tibial slope and to conduct quantitative analysis of the extent to which the posterior tibial slope changes according to the degree of the osteotomy inclination angle change in MOWHTO. Computed tomography images of 30 patients who underwent MOWHTO were collected. Three-dimensional models of preoperative original tibia were reconstructed, and virtual osteotomies were performed. The sagittal osteotomy inclination angles formed by the osteotomy line and the medial tibial plateau line were classified as positive in case of anteriorly inclined osteotomy and negative in case of posteriorly inclined osteotomy. Thirteen osteotomies were performed for each tibial model at intervals of 5° from - 30° to 30°. The posterior tibial slope was assessed, and the proportional relationship between the sagittal osteotomy inclination angle and the posterior tibial slope change was analyzed. The posterior tibial slope changed significantly after osteotomy (p < 0.001), except for the cases where the sagittal osteotomy inclination angles were 5°, 0°, and - 5°. Anteriorly and posteriorly inclined osteotomy caused increase and decrease in the posterior tibial slope, respectively. As the inclination angle increased by 1°, the posterior tibial slope increased by 0.079° in anterior inclination osteotomy, while in posterior inclination osteotomy, as the inclination angle decreased by 1°, the posterior tibial slope decreased by 0.067°. The osteotomy inclination angle in the sagittal plane significantly affected the posterior tibial slope. When there was an inclination angle occurred between the osteotomy line and the medial tibial plateau line in the sagittal plane, the posterior tibial slope changed after MOWHTO. The posterior tibial slope tended to increase in anteriorly inclined osteotomy and decrease in posteriorly inclined osteotomy. The change in the posterior tibial slope was proportionally related to the absolute value of the osteotomy inclination angle.

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High tibial osteotomy in obese patients: Is successful surgery enough for a good outcome?

Publications

High tibial osteotomy in obese patients: Is successful surgery enough for a good outcome?

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