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Patient-reported outcomes correlate with functional scores after opening-wedge high tibial osteotomy: a clinical study
Author(s):
Jang K. (South Korea (ROK))
,
Jang K. (South Korea (ROK))
Affiliations:
Choi J.
,
Choi J.
Affiliations:
Han S.
Han S.
Affiliations:
ESSKA Academy. Jang K. May 9, 2018; 209692; P12-664 Topic: Open Surgery
Prof. Dr. Ki-Mo Jang
Prof. Dr. Ki-Mo Jang
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Abstract
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Objectives: The purpose of this study was to assess postoperative
patient subjective satisfaction and to analyze associated
peri-operative factors following biplanar medial open
wedge high tibial osteotomy (OWHTO).

Methods: The study cohort consisted of 88 patients with a
minimum of two years of follow-up. Patient satisfaction was evaluated with a questionnaire that assessed (1) overall satisfaction, (2) pain relief, (3) daily living functions, and (4) cosmesis. Patients were categorized into two groups (satisfied or unsatisfied) based on overall satisfaction questionnaire. Pre- and post-operative objective clinical statuses were assessed with a knee scoring system based on the American Knee Society (AKS), the Western Ontario McMaster University Osteoarthritis Index (WOMAC), and range of motion.

Results: Of the 88 patients, 85.2% were graded as satisfied
according to the overall satisfaction estimation. The percentage of patients satisfied with pain relief, daily living functions, and cosmesis were 85.2%, 86.4%, and 86.4%, respectively. Multivariable logistic regression analysis demonstrated that pre-operative Hip-Knee-Ankle angle (HKAA) (odds ratio (OR) = 1.812) , post-operative AKS knee score (OR = 1.156), and post-operative HKAA (OR = 0.717) were significantly associated with overall satisfaction. Preoperative HKAA (OR = 1.436), post-operative WOMAC activity score (OR = 0.865), and post-operative HKAA (OR = 0.505) were significant predictors for satisfaction with pain reduction, daily living functions, and cosmesis, respectively.

Conclusions: Biplanar medial OWHTO is an effective treatment
for osteoarthritis with varus deformity in terms of subjective satisfactory outcome. Several factors, including preand post-operative HKAA, post-operative AKS and WOMAC score, were significant predictors for subjective satisfaction.

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