Predictors of Midterm Outcomes after Medial Unicompartmental Knee Arthroplasty in Asians
Clinics in Orthopedic Surgery
;
: 432-438, 2017.
Article
in English
| WPRIM
| ID: wpr-75346
ABSTRACT
BACKGROUND:
This study was designed to evaluate predictors of good outcomes following medial unicompartmental knee arthroplasty (UKA) in Asian patients.METHODS:
Registry data of patients who underwent primary unilateral medial UKA from 2006 to 2011 were collected. Outcomes studied were the Oxford Knee Score (OKS) and the Physical Component Score (PCS) of the Short Form 36 (SF-36) questionnaire. These outcome scores were collected prospectively, pre- and postoperatively up to 5 years. Good outcome was defined as an overall improvement in score greater than or equal to the minimal clinically important difference (MCID). The MCID for the OKS was 5 while the MCID for the PCS was 10. Regression analysis was used to identify predictors of good outcomes following medial UKA.RESULTS:
Primary medial UKA was performed in 1,075 patients. Higher (poorer) preoperative OKS (odds ratio [OR], 1.27; p < 0.001), lower (poorer) preoperative PCS (OR, 1.08; p < 0.001), lower (poorer) preoperative Knee Society Knee Score (KSKS; OR, 1.02; p < 0.001) and higher (better) preoperative SF-36 Mental Component Score (MCS; OR, 1.02; p < 0.001) were significant predictors of good outcomes.CONCLUSIONS:
Patients with poorer OKS, PCS and KSKS and better SF-36 MCS preoperatively tended to achieve good outcomes by the MCID criterion at 5 years following the index surgery.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Osteoarthritis
/
Arthroplasty
/
Asia
/
Registries
/
Prospective Studies
/
Arthroplasty, Replacement, Knee
/
Asian People
/
Knee
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Limits:
Humans
Country/Region as subject:
Asia
Language:
English
Journal:
Clinics in Orthopedic Surgery
Year:
2017
Type:
Article
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