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lüll The use of a tuning fork and stethoscope to identify fractures Moore MBJ Athl Train 2009[May]; 44 (3): 272-4CONTEXT: Nonradiographic tests to identify fractures rely on a patient's report of increased pain at the site of injury. These tests can be misleading and produce false-positive or false-negative results because of differences in pain tolerance. A painless technique using a tuning fork and stethoscope to detect fractures has undergone limited review in the athletic training literature. OBJECTIVE: To determine if the use of a 128-Hz vibrating tuning fork and stethoscope were effective in identifying fractures. DESIGN: Cross-sectional study. SETTING: University athletic training room or local orthopaedic center when fractures were suspected. PATIENTS OR OTHER PARTICIPANTS: A total of 37 patients (19 males, 18 females) volunteered. MAIN OUTCOME MEASURE(S): A diminished or absent sound arising from the injured bone as compared with the uninjured bone represented a positive sign for a fracture. Radiographs interpreted by the attending orthopaedic physician provided the standard for comparison of diagnostic findings. RESULTS: Sensitivity was 0.83 (10:12), specificity was 0.80 (20:25), positive likelihood ratio was 4.2, negative likelihood ratio was 0.21, and diagnostic accuracy was 81% (30:37). CONCLUSIONS: The tuning fork and stethoscope technique was an effective screening method for a variety of fractures.ä |