J Järvenpää1, J Kettunen, H Kröger, H Miettinen. 1. Faculty of Medicine, Bone and Cartilage Unit, University of Kuopio, Kuopio, Finland. jaakko.jarvenpaa@fimnet.fi
Abstract
BACKGROUND AND AIMS: Obesity has been linked to the development of osteoarthritis of the knee and increases the probability to fall into total knee arthroplasty. In this study we compared short-term outcome of total knee arthroplasty (TKA) in non-obese and obese patients. MATERIAL AND METHODS: A total of 100 patients underwent TKA between October 2006 and March 2007. They were divided into two groups based on the body mass index: 52 of the patients were obese (BMI = 30 kg/m2) and 48 non-obese (BMI < 30 kg/m2). The short-term out-come was studied using clinical, functional and radiological analysis. The mean of the follow-up period was 3 months. RESULTS: There were five complications (2 wound infections, phlebitis, nerve injury and massive edema) in obese patients group compared with no complications in non-obese (p = 0.028). The obese patients had also worse postoperative range of motion (110 degrees vs.118 degrees , p = 0.001) than non-obese and the number of technical errors was 17 in obese and 5 in non-obese group, respectively (p = 0.007). CONCLUSIONS: We suggest that obesity may impair the early outcome of total knee arthroplasty and obese patients should be informed about the increased risk of complications related to TKA. Key words: Total knee arthroplasty; body mass index; obesity; complications; range of motion; mechanical axis.
BACKGROUND AND AIMS: Obesity has been linked to the development of osteoarthritis of the knee and increases the probability to fall into total knee arthroplasty. In this study we compared short-term outcome of total knee arthroplasty (TKA) in non-obese and obesepatients. MATERIAL AND METHODS: A total of 100 patients underwent TKA between October 2006 and March 2007. They were divided into two groups based on the body mass index: 52 of the patients were obese (BMI = 30 kg/m2) and 48 non-obese (BMI < 30 kg/m2). The short-term out-come was studied using clinical, functional and radiological analysis. The mean of the follow-up period was 3 months. RESULTS: There were five complications (2 wound infections, phlebitis, nerve injury and massive edema) in obesepatients group compared with no complications in non-obese (p = 0.028). The obesepatients had also worse postoperative range of motion (110 degrees vs.118 degrees , p = 0.001) than non-obese and the number of technical errors was 17 in obese and 5 in non-obese group, respectively (p = 0.007). CONCLUSIONS: We suggest that obesity may impair the early outcome of total knee arthroplasty and obesepatients should be informed about the increased risk of complications related to TKA. Key words: Total knee arthroplasty; body mass index; obesity; complications; range of motion; mechanical axis.
Authors: Angela T Chen; Corin I Bronsther; Elizabeth E Stanley; A David Paltiel; James K Sullivan; Jamie E Collins; Tuhina Neogi; Jeffrey N Katz; Elena Losina Journal: Ann Intern Med Date: 2021-03-23 Impact factor: 25.391
Authors: Gino M M J Kerkhoffs; Elvire Servien; Warren Dunn; Diane Dahm; Jos A M Bramer; Daniel Haverkamp Journal: J Bone Joint Surg Am Date: 2012-10-17 Impact factor: 5.284