Preoperative characteristics of younger patients undergoing total knee arthroplasty.

Hylkema, T.H. (2015) Preoperative characteristics of younger patients undergoing total knee arthroplasty. thesis, Medicine.

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Abstract

Introduction The amount of people dealing with knee osteoarthritis (OA) is rising rapidly, mainly due to ageing populations and the obesity epidemic and in Western societies. Formerly total knee arthroplasty (TKA) as a treatment for knee OA was primarily allocated to older (≥65 years) patients. Nowadays TKA is more and more used in younger (<65 years) patients. Until now research in this patient population has mainly been conducted among older TKA patients. Studies considering preoperative characteristics of younger TKA patients are scarce. Therefore the aim of this study was to describe demographic, physical, psychological and social characteristics of younger TKA patients and subsequently compare these characteristics with older TKA patients and the general population. Methods A cross sectional analysis on prospectively collected data. Participating hospitals were the University Medical Centre Groningen (UMCG), Martini hospital Groningen, Medical Centre Leeuwarden, and Röpcke-Zweers hospital Hardenberg. The present study used preoperative data of TKA patients (n=152) that had undergone TKA surgery in one of the before mentioned hospitals between March 2012 and July 2014. Preoperative data of older TKA patients (n=535) were collected from UMCG, Haga hospital the Hague, Deventer Hospital Deventer and Medical Centre Leeuwarden. Normative values of the general population were derived from literature. Demographic, physical, psychological, social (including work) characteristics were analyzed in this study. To create a profile of the younger TKA patients, descriptive statistics were used. Independent T-tests, Chi-square or Mann-Whitney-U-tests were used to compare younger TKA patients with older TKA patients and the general population. Results The mean age of younger TKA patients was 55 years (sd=5.5). The majority (83.8%) of the younger TKA patients was overweight or obese. Mean physical activity performed per week, was 2947 minutes per week, whereby most light or moderate intensity activities were performed. Most younger TKA patients had no (77.0%) or mild (23.0%) depressive symptoms. The majority was employee (81.0%) and worked on average 31.3 hours per week. Compared to the older TKA population, younger TKA patients perceived less stiffness, better physical functioning and better vitality. Younger TKA patients were more active on light intensity activities and perceived better mental health than older TKA patients. Compared to the general population younger TKA patients perceived worse disability and physical health, except that younger TKA patients were more active. Younger TKA patients perceived better mental health and worked fewer hours than the general population. Conclusion This study showed that a majority of the younger TKA patients had a high BMI, multiple comorbidities and were highly active in light intense activities and had few depressive symptoms. In addition, younger TKA patients were significantly different on physical, psychological and social characteristics in comparison to older TKA patients and the general population. Knowledge of the preoperative characteristics of younger TKA patients is important for clinicians to achieve good postoperative results and fasten rehabilitation.

Item Type:	Thesis (Thesis)
Supervisor name:	Brouwer, Prof. Dr. S. and Stevens, Dr. M.
Faculty:	Medical Sciences
Date Deposited:	25 Jun 2020 10:57
Last Modified:	25 Jun 2020 10:57
URI:	https://umcg.studenttheses.ub.rug.nl/id/eprint/1736

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