Document Detail

Dysbaric osteonecrosis by X-ray and CT scan in Chinese divers.
MedLine Citation:
PMID:  16119308     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare the results of X-ray and CT scan for dysbaric osteonecrosis in Chinese divers. METHODS: Both shoulders, hips and knees of 66 asymptomatic divers with diving duration of more than one year were examined by X-ray and CT scan. RESULTS: The most frequent locations of dysbaric osteonecrosis were the upper femurs, followed by the upper humerus, lower femurs and upper tibias, and the most frequent radiographic lesions were calcification spots and cystic changes. Of the lesions detected, 38% (27/71) and 42% (95/229) werejuxta-articular of the femoral and humeral heads by X-ray and CT respectively. The detection rates of dysbaric necrosis (juxta- and/or other lesions) of X-ray and CT scan were 42.4% (95% confidence interval: 30.5%-54.3%) and 81.8% (95% CI: 72.4%-91.2%) respectively (p<0.05). If CT scan was used as the gold standard, the sensitivity of X-ray was 100% and the specificity was 31.6%. CONCLUSION: CT scan showed a higher detection rate of dysbaric necrosis than X-ray. We recommend that CT scan be used for early diagnosis of dysbaric osteonecrosis.
C Q Jiang; B Wang; C F Yu; L W Xiao; W W Liu; S H Jiao; Y Y Liu; X Q Lao; T H Lam
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc     Volume:  32     ISSN:  1066-2936     ISO Abbreviation:  Undersea Hyperb Med     Publication Date:    2005 May-Jun
Date Detail:
Created Date:  2005-08-25     Completed Date:  2005-09-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9312954     Medline TA:  Undersea Hyperb Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  169-74     Citation Subset:  IM; S    
Guangzhou Occupational Disease Prevention & Treatment Centre, Guangzhou 510620, China.
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MeSH Terms
Confidence Intervals
Diving / adverse effects*
Middle Aged
Occupational Diseases / etiology,  radiography*
Osteonecrosis / etiology,  radiography*
Tomography, X-Ray Computed*

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