K Fischer1,2, M Trombik1,2, G Freystätter1,2,3, A Egli1,2, R Theiler1,2,3, H A Bischoff-Ferrari4,5,6,7. 1. Department of Geriatrics and Aging Research, Geriatric Clinic, University Hospital Zurich and University of Zurich, RAE B1, Rämistrasse 100, 8091, Zurich, Switzerland. 2. Centre on Aging and Mobility, University Hospital Zurich and City Hospital Waid, Zurich, Switzerland. 3. Centre for Senior Trauma Care, University Hospital Zurich, Zurich, Switzerland. 4. Department of Geriatrics and Aging Research, Geriatric Clinic, University Hospital Zurich and University of Zurich, RAE B1, Rämistrasse 100, 8091, Zurich, Switzerland. Heike.Bischoff@usz.ch. 5. Centre on Aging and Mobility, University Hospital Zurich and City Hospital Waid, Zurich, Switzerland. Heike.Bischoff@usz.ch. 6. Centre for Senior Trauma Care, University Hospital Zurich, Zurich, Switzerland. Heike.Bischoff@usz.ch. 7. City Hospital Waid, University Clinic for Acute Geriatric Care, Zurich, Switzerland. Heike.Bischoff@usz.ch.
Abstract
We investigated the timeline of functional recovery after hip fracture over 12 months in adults age ≥ 65 years using objective lower extremity function tests and subjective physical functioning. Objective functional recovery was largely complete in the first 6 months, whereas subjective recovery improved up to 9 months after hip fracture. INTRODUCTION: Hip fractures are a major cause of loss of function among seniors. We assessed the timeline of objective and subjective functional recovery after hip fracture. METHODS: We conducted a prospective observational secondary analysis of a 1-year clinical trial on vitamin D and home exercise treatment and complications after hip fracture among 173 patients age ≥ 65 years (mean age 84 years; 79.2% women; 77.4% community-dwelling) conducted from January 2005 through December 2007. Lower extremity function (Timed Up and Go test (TUG), knee extensor and flexor strength) and grip strength was assessed at baseline and at 6 and 12 months follow-up. Subjective physical functioning was assessed using the SF-36 questionnaire also at 3 and 9 months follow-up. Multivariable-adjusted repeated-measures models were used to assess the timeline of functional recovery in the total population and in subgroups of patients. RESULTS:Lower extremity function including TUG (- 61.1%), knee extensor (+ 17.6%), and knee flexor (+ 11.6%) strength improved significantly in the first 6 months (P < 0.001). However, between 6 and 12 months, there was no further significant improvement for any of the functional tests. Grip strength decreased from baseline to 6 months (- 7.9%; P < 0.001) and from 6 to 12 months (- 10.8%; P < 0.001). Subjective physical functioning improved from 3 to 9 months (+ 15.2%, P < 0.001), but no longer thereafter. CONCLUSIONS: Functional recovery after hip fracture may be largely complete in the first 6 months for objective functional tests, whereas may extend up to 9 months for subjective recovery, with oldest-old, female, institutionalized, and cognitively impaired patients recovering most poorly. CLINICAL TRIALS REGISTRY (ORIGINAL TRIAL): NCT00133640.
RCT Entities:
We investigated the timeline of functional recovery after hip fracture over 12 months in adults age ≥ 65 years using objective lower extremity function tests and subjective physical functioning. Objective functional recovery was largely complete in the first 6 months, whereas subjective recovery improved up to 9 months after hip fracture. INTRODUCTION:Hip fractures are a major cause of loss of function among seniors. We assessed the timeline of objective and subjective functional recovery after hip fracture. METHODS: We conducted a prospective observational secondary analysis of a 1-year clinical trial on vitamin D and home exercise treatment and complications after hip fracture among 173 patients age ≥ 65 years (mean age 84 years; 79.2% women; 77.4% community-dwelling) conducted from January 2005 through December 2007. Lower extremity function (Timed Up and Go test (TUG), knee extensor and flexor strength) and grip strength was assessed at baseline and at 6 and 12 months follow-up. Subjective physical functioning was assessed using the SF-36 questionnaire also at 3 and 9 months follow-up. Multivariable-adjusted repeated-measures models were used to assess the timeline of functional recovery in the total population and in subgroups of patients. RESULTS: Lower extremity function including TUG (- 61.1%), knee extensor (+ 17.6%), and knee flexor (+ 11.6%) strength improved significantly in the first 6 months (P < 0.001). However, between 6 and 12 months, there was no further significant improvement for any of the functional tests. Grip strength decreased from baseline to 6 months (- 7.9%; P < 0.001) and from 6 to 12 months (- 10.8%; P < 0.001). Subjective physical functioning improved from 3 to 9 months (+ 15.2%, P < 0.001), but no longer thereafter. CONCLUSIONS: Functional recovery after hip fracture may be largely complete in the first 6 months for objective functional tests, whereas may extend up to 9 months for subjective recovery, with oldest-old, female, institutionalized, and cognitively impairedpatients recovering most poorly. CLINICAL TRIALS REGISTRY (ORIGINAL TRIAL): NCT00133640.
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