Document Detail

The influence of joint posture on intra-articular pressure. A study of transient synovitis and Perthes' disease.
MedLine Citation:
PMID:  3818737     Owner:  NLM     Status:  MEDLINE    
The pathogenesis of Perthes' disease has been related to increased intra-articular pressure secondary to a joint effusion. The pressure within the hip in different positions was measured in eight children with transient synovitis and four with the synovial stage of Perthes' disease. In the position of comfort for the hip this pressure was always less than the arteriolar blood pressure and in a supine position it did not exceed the systolic blood pressure. However, in extension with medial rotation the intra-articular pressure always became several times the systolic blood pressure. This high pressure was also recorded in the stable lateral position which occurs normally during sleep. It is concluded that in the presence of a synovial effusion in the hip, a position of extension and medial rotation causes an increase in intra-articular pressure which may compromise the blood supply to the capital epiphysis of the femur.
J Vegter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of bone and joint surgery. British volume     Volume:  69     ISSN:  0301-620X     ISO Abbreviation:  J Bone Joint Surg Br     Publication Date:  1987 Jan 
Date Detail:
Created Date:  1987-03-30     Completed Date:  1987-03-30     Revised Date:  2010-11-10    
Medline Journal Info:
Nlm Unique ID:  0375355     Medline TA:  J Bone Joint Surg Br     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  71-4     Citation Subset:  AIM; IM    
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MeSH Terms
Femur Head Necrosis / physiopathology*
Hip Joint / physiopathology*
Hydrostatic Pressure*
Legg-Perthes Disease / physiopathology*
Synovial Fluid / physiology
Synovitis / physiopathology*

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