Hiromi Matsumoto1, Makoto Okuno2, Tatsuhiko Nakamura2, Kichizo Yamamoto2, Mari Osaki1, Hiroshi Hagino3. 1. Rehabilitation Division, Tottori University Hospital, Yonago 683-8504, Japan. 2. †Clinical Department of Orthopedic Surgery, Hakuai Hospital, Yonago 683-0853, Japan. 3. Rehabilitation Division, Tottori University Hospital, Yonago 683-8504, Japan ; ‡Department of Fundamental Nursing, School of Health Science, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Abstract
BACKGROUND: It is possible that patients who have undergone total knee arthroplasty (TKA) are at a high risk of falling. However, there are insufficient data to confirm the incidence and risk factors for falling in patients after TKA compared with healthy elderly counterparts. The purpose of this study was to elucidate the incidence and risk factors for falling in patients after TKA compared to the age- and gender-matched healthy elderly. METHODS: Subjects who underwent TKA consisted of 252 patients over 60 years of age. Controls were 150 healthy elderly individuals over 60 years of age living independently in the community. A self-administered questionnaire was mailed to patients after TKA and a similar questionnaire was distributed to the controls by investigators during the town-sponsored healthy aging program. The questionnaire included questions for ambulatory ability, functional status in daily living, knee pain, other joint pain and information on falls. RESULTS: Self-administered questionnares were returned by 192 of the 252 patients (76.1%) and 146 of the 150 controls (97.3%). Age and gender matching was performed for respondents between 70 and 80 years of age. There were 81 patients and 80 controls who fulfilled the inclusion criteria, and all of them agreed to participate. In the previous year, 34 of the 81 patients (38.2%) fell. The incidence of falls was significantly higher in patients than controls (23.8%, P = 0.041). In controls, ability to stand up from a chair without using the arms and restriction from joining social activities due to knee pain showed the strongest association with recent falls. In patients, self-reported kyphosis showed the strongest association with recent falls. CONCLUSION: Patients after TKA are more likely to fall than the general Japanese population. Kyphosis showed the strongest association with recent falls in patients after TKA, which was different from the results obtained in the healthy elderly.
BACKGROUND: It is possible that patients who have undergone total knee arthroplasty (TKA) are at a high risk of falling. However, there are insufficient data to confirm the incidence and risk factors for falling in patients after TKA compared with healthy elderly counterparts. The purpose of this study was to elucidate the incidence and risk factors for falling in patients after TKA compared to the age- and gender-matched healthy elderly. METHODS: Subjects who underwent TKA consisted of 252 patients over 60 years of age. Controls were 150 healthy elderly individuals over 60 years of age living independently in the community. A self-administered questionnaire was mailed to patients after TKA and a similar questionnaire was distributed to the controls by investigators during the town-sponsored healthy aging program. The questionnaire included questions for ambulatory ability, functional status in daily living, knee pain, other joint pain and information on falls. RESULTS: Self-administered questionnares were returned by 192 of the 252 patients (76.1%) and 146 of the 150 controls (97.3%). Age and gender matching was performed for respondents between 70 and 80 years of age. There were 81 patients and 80 controls who fulfilled the inclusion criteria, and all of them agreed to participate. In the previous year, 34 of the 81 patients (38.2%) fell. The incidence of falls was significantly higher in patients than controls (23.8%, P = 0.041). In controls, ability to stand up from a chair without using the arms and restriction from joining social activities due to knee pain showed the strongest association with recent falls. In patients, self-reported kyphosis showed the strongest association with recent falls. CONCLUSION:Patients after TKA are more likely to fall than the general Japanese population. Kyphosis showed the strongest association with recent falls in patients after TKA, which was different from the results obtained in the healthy elderly.
Entities:
Keywords:
elderly; falling; fractures; risk factor; total knee arthroplasty
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