Background and purpose — The effect of total joint arthroplasty (TJA) on physical activity is not fully understood. We investigated the change in physical activity after TJA and patient factors associated with change.Patients and methods — Using a total joint replacement registry, primary total hip arthroplasty (THA) patients (n = 5,678) and knee arthroplasty (TKA) patients (n = 11,084) between January 1, 2010 and December 31, 2012 were identified. Median age at THA was 68 and median age at TKA was 67. Change in self-reported physical activity (minutes per week) from before TJA (within 1 year of surgery) to after TJA (1–2 years) was the outcome of interest. Patient demographics and comorbidities were evaluated as risk factors. Multiple linear regression was used.Results — Median physical activity before surgery was 50 min/week (IQR: 0–140) for THA patients and 58 (IQR: 3–143) for TKA patients. Median physical activity after surgery was 150 min/week (IQR: 60–280) for both THA patients and TKA patients. Following TJA, 50% of patients met CDC/WHO physical activity guideline criteria. Higher body mass index was associated with lower change in physical activity (THA: −7.1 min/week; TKA: −5.9 min/week). Females had lower change than males (THA: −11 min/week; TKA: −9.1 min/week). In TKA patients, renal failure was associated with lower change (−17 min/week), as were neurological disorders (−30 min/week).Interpretation — Self-reported minutes of physical activity increased from before to after TJA, but 50% of TJA patients did not meet recommended physical activity guideline criteria. Higher body mass index, female sex, and specific comorbidities were found to be associated with low change in physical activity. Patient education on the benefits of physical activity should concentrate on these subgroups of patients.
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机译:背景与目的—全关节置换术(TJA)对身体活动的影响尚未完全了解。我们调查了TJA术后身体活动的变化以及与变化相关的患者因素。患者和方法-使用全关节置换注册表,原发性全髋关节置换术(THA)患者(n = 5,678)和膝关节置换术(TKA)患者(n =确定了2010年1月1日至2012年12月31日之间的11,084)。 THA的中位年龄为68岁,TKA的中位年龄为67岁。有趣的是,从TJA前(手术1年内)到TJA后(1-2年)自我报告的身体活动(每周分钟)的变化。将患者的人口统计学特征和合并症评估为危险因素。结果— THA患者术前平均身体活动为50分钟/周(IQR:0–140),THA患者为58(IQR:3–143)。 THA患者和TKA患者手术后的平均身体活动量为150分钟/周(IQR:60–280)。 TJA后,50%的患者符合CDC / WHO身体活动指南标准。较高的体重指数与较低的体育活动变化相关(THA:-7.1 min /周; TKA:-5.9 min /周)。女性的变化低于男性(THA:-11 min /周; TKA:-9.1 min /周)。在TKA患者中,肾功能衰竭与较低的变化(−17 min /周)和神经系统疾病(−30 min /周)相关。解释—自我报告的体育锻炼分钟数从TJA之前到之后增加,但有50%的TJA患者未达到推荐的体育锻炼准则标准。较高的体重指数,女性和特定合并症与体育活动的低改变有关。对患者进行体育锻炼的教育应集中在这些患者亚组上。
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