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Analysis of Wheeled Knee Walker Use following Foot and Ankle Surgery or Injury J Foot Ankle Surg. 2021 Apr 9;S1067-2516(21)00115-0
To determine patient satisfaction and safety with wheeled knee walkers, we performed a retrospective, observational, and descriptive study. Inclusion criteria were age ≥18 years, unilateral foot or ankle surgery, non-weightbearing status, and being given the option of using the knee walker. Surveys were sent to eligible patients, and chart review included only those patients who returned surveys. Primary endpoints were occurrence and frequency of falls. Secondary endpoints were patient demographics, comorbidities, knee walker characteristics, duration of use, and patient satisfaction. We also attempted to identify associations between falls and patient characteristics. Eighty participants, 51 females and 29 males, responded adequately to the survey. The mean age of respondents was 55.6 ± 13.0 years and their mean body mass index (BMI) was 30.2 ± 5.9 kg/m2. Most used a steerable, 4-wheeled knee walker. Almost half (46%) had no prior experience with any type of walking aids, and none had experience using a knee walker. Two thirds (66%) did not receive any instruction on usage of the knee walker. Thirty-four (43%) of the 80 respondents fell while using the knee walker; nearly two thirds (62%) of those who fell reported multiple falls. Sixteen (55%) of 29 males compared to 18 (36%) of 50 females reported falling (p = .097). There was no statistical association between falls and age, BMI, or number of comorbidities. Most respondents (91%) who fell still reported satisfaction with the knee walker. Nearly half (43%) experienced falling, and nearly two thirds (64%) of those who fell had multiple falls.
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