ISAKOS: 2019 Congress in Cancun, Mexico
ISAKOS

2019 ISAKOS Biennial Congress ePoster #1212

 

Patient-Reported Outcomes Correlate with Functional Scores After Opening-Wedge High Tibial Osteotomy

Ki-Mo Jang, MD, PhD, Prof., Seoul KOREA, REPUBLIC OF
Seung-Beom Han, MD, PhD, Seoul KOREA, REPUBLIC OF

Anam Hospital, Korea University College of Medicine , Seoul, KOREA, REPUBLIC OF

FDA Status Not Applicable

Summary

Biplanar medial opening-wedge high tibial osteotomy is an effective treatment for osteoarthritis with varus deformity in terms of subjective satisfactory outcome.

Abstract

Purpose

The purpose of the present study was to assess postoperative patient subjective satisfaction and to analyze associated peri-operative factors following biplanar medial opening-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 pre- and post-operative HKAA, post-operative AKS and WOMAC score, were significant predictors for subjective satisfaction.