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Clinical characteristics of osteoporotic second hip fracture: From the data of Clinical Pathway with Regional Alliance in rural region in Japan.
Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association 2019 Februrary 14
BACKGROUND: Second osteoporotic fracture of the hip is a serious comorbidity that can directly cause mortality. Preventing its occurrence is particularly important in Japan, given its rapidly aging society. Here, the clinical characteristics of such recurrence were evaluated using the data of the Clinical Pathway with Regional Alliance (CPRA).
METHODS: CPRA for hip fracture started in 2007 and has allowed intranet-based data sharing since July 2011. Data from this alliance, such as number of second cases, duration from initial fracture, Functional Impairment Measure (FIM), revised Hasegawa Dementia Scale (HDS-R) score, muscle force and range of motion of hip joint, and gait status (GS) were collected and statistically evaluated.
RESULTS: Overall, 45 of 1118 cases (2.68/100 person-years) developed a second fracture. The mean interval from initial to second fracture was 13.3 months. Thirty of these cases (66.7%, 1.79/100 person-years) occurred within 1 year from initial fracture (G < 1Y). The second fracture tended to be associated with worse parameter values than initial fracture, especially for GS. FIM score for cognitive function, HDS-R score, and GS at acute fracture in the G < 1Y group were significantly lower than in the initial fracture patient group (Initial). The withdrawal rate was also significantly higher than for Initial, whereas deaths and serious comorbidities were also much more numerous.
CONCLUSIONS: Osteoporotic second hip fracture is a severe issue, and its prognosis is remarkably poor. The majority of these cases may occur within 1 year from the initial fracture. Dementia severity correlates with such recurrence within 1 year.
METHODS: CPRA for hip fracture started in 2007 and has allowed intranet-based data sharing since July 2011. Data from this alliance, such as number of second cases, duration from initial fracture, Functional Impairment Measure (FIM), revised Hasegawa Dementia Scale (HDS-R) score, muscle force and range of motion of hip joint, and gait status (GS) were collected and statistically evaluated.
RESULTS: Overall, 45 of 1118 cases (2.68/100 person-years) developed a second fracture. The mean interval from initial to second fracture was 13.3 months. Thirty of these cases (66.7%, 1.79/100 person-years) occurred within 1 year from initial fracture (G < 1Y). The second fracture tended to be associated with worse parameter values than initial fracture, especially for GS. FIM score for cognitive function, HDS-R score, and GS at acute fracture in the G < 1Y group were significantly lower than in the initial fracture patient group (Initial). The withdrawal rate was also significantly higher than for Initial, whereas deaths and serious comorbidities were also much more numerous.
CONCLUSIONS: Osteoporotic second hip fracture is a severe issue, and its prognosis is remarkably poor. The majority of these cases may occur within 1 year from the initial fracture. Dementia severity correlates with such recurrence within 1 year.
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