Authors: Alisara Arirachakaran Pathompong Choowit Chinundorn Putananon Samart Muangsiri Jatupon Kongtharvonskul
Publish Date: 2015/02/13
Volume: 25, Issue: 5, Pages: 799-806
Abstract
A systematic review and metaregression to compare postoperative outcomes of pain VAS knee function score range of motion complications and revision surgery rates between UKA and TKA were conducted Relevant randomized controlled trials were identified from MEDLINE and Scopus from inception to August 29 2014Three of 1056 studies were eligible two three two three and three studies were included in pooling of pain visual analog score VAS Knee Society Score KSS and Bristol Knee Score BKS maximum knee flexion postoperative complications aseptic loosening progressive degenerative joint disease of lateral compartment bearing dislocation DVT fractures and infection and revision rates respectively The unstandardized mean difference UMD of the function scores KSS BS for UKA was 162 95 CI −117 442 better than TKA and for pain score was 01 95 CI −354 373 higher than TKA but both without statistical significance UKA was more likely to show higher mean maximum knee flexion with a UMD of 188 95 CI −054 430 when compared to TKA but was also not statistically significant UKA had a statistically significant lower chance of postoperative complications by 035 U 95 CI 012 098 when compared to TKA but had higher revision rates than TKA with a value of 536 95 CI 106 2708In shortterm outcomes 5 years or less with followup of 0–5 years TKA had higher postoperative complications than UKA but had lower revision rates There was only one study that reported longterm survivorship more than 5 years with followup of 5–15 years Further research that assesses longterm survivorship is necessary to better evaluate UKA and TKA in the treatment of unicompartmental knee osteoarthritis
Keywords: