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Predicting a second hip fracture.

A Stewart1, L G Walker, R W Porter

  • 1Osteoporosis Research Unit, Department of Medicine and Therapeutics, University of Aberdeen, UK. a.stewart@abdn.ac.uk.

Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry
|February 25, 2000
PubMed
Summary
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Identifying patients at high risk for a second hip fracture is crucial. Low body weight and poor mobility can effectively trigger preventive therapy without bone density scans.

Area of Science:

  • Gerontology
  • Orthopedics
  • Radiology

Background:

  • Hip fractures represent a significant health burden, particularly in the elderly.
  • Identifying patients at high risk for subsequent fractures is essential for targeted preventive strategies.

Purpose of the Study:

  • To identify clinical and bone mass parameters that predict a second hip fracture in patients who have already experienced one.
  • To evaluate the utility of dual X-ray absorptiometry (DXA) and quantitative ultrasound (QUS) in predicting second hip fractures.

Main Methods:

  • Prospective follow-up of 394 patients with a history of one hip fracture.
  • Assessment of bone mineral density (BMD) using DXA (hip, total body) and bone parameters using QUS (os calcis).
  • Collection of clinical data including body weight, falls, mobility scores, and cognitive function (Mini Mental State Examination).

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Main Results:

  • Low body weight (lowest quartile), occurrence of a new fall, and poor mobility score were significant predictors of a second hip fracture.
  • Femoral neck and total body BMD (DXA) were significant, while most QUS parameters were not, except for broadband ultrasound attenuation.
  • Clinical risk factors demonstrated predictive power comparable to bone mass measurements.

Conclusions:

  • Low body weight and poor mobility are valuable, accessible indicators for initiating preventive therapy for hip fractures.
  • Preventive strategies can be targeted effectively using these clinical factors, potentially reducing the need for costly bone density measurements.
  • Clinical assessment alone may suffice to identify high-risk individuals for hip fracture prevention.