Total knee arthroplasty:Effect of obesity and other patients' characteristics on operative duration and outcome

作     者：Abdulaziz Saud Al Turki Yazeed Al Dakhil Abdulah Al Turki Mazen Saleh Ferwana 

作者机构：Department of Orthopedic SurgeryKing Abdulaziz Medical CityNational Guard Health Affairs Department of Family Medicine and Primary Healthcare King Abdulaziz Medical CityNational Guard Health Affairs 

出 版 物：《World Journal of Orthopedics》 (世界骨科杂志（英文版）)

年 卷 期：2015年第6卷第2期

页      面：284-289页

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学] 

主　　题：Knee Replacement Arthroplasty Implantation Surgery Orthopedics Total knee arthroplasty Total knee replacements 

摘      要：AIM: To examine the effects of patients characteristics mainly obesity on operative duration and other outcomemeasures of knee arthroplasty. METHODS: This is a retrospective chart review of 204 patients who had knee arthroplasty within the past five years(2007-2011) at King Abdulaziz Medical City in Riyadh, Kingdom of Saudi Arabia. The data collection form was developed utilizing the literature review to gather all the needed variables. Data were gathered from admission notes, nursing notes, operative reports and discharge ***: A feasible sample of 204 patients were included in the study. Of those patients, 155(76%) were females. The mean age was 70.1 years for males(SD ± 9.4) and 62.7 years(SD ± 8) for females. Regarding the type of total knee replacement(TKR), 163(79.9%) patients had unilateral TKR and 41(20.1%) had bilateral TKR. Nine patients(4.4%) had a normal body mass index(BMI)(18.5 to 25). Overweight patients(BMI 25 to 30) represented 18.1%. Obesity class Ⅰ(BMI 30 to 35) and obesity class Ⅱ(BMI from 35 to 40) were present in 23% and 29.9% of the patients, respectively. Morbid obesity(BMI greater than 40) was present in 24.5%. The mean duration of surgery was 126.3 min(SD ± 30.8) for unilateral TKR and 216.6 min(SD ± 55.4) for bilateral *** mean length of stay in the hospital was 12 d(SD ± 4.9). The complications that patients had after the operation included 2 patients(1%) who developed deep venous thrombosis, 2 patients(1%) developed surgical wound infections and none had pulmonary embolism. Patients characteristics(including age, gender, BMI and co-morbidities) did not have an effect on the operative duration of knee replacement nor the length of hospital stay. CONCLUSION: Our study shows that obesity and other patients characteristics do not have effect on the operative duration nor the length of hospital stay following TKR.