RADIOGRAPHY SIGNS FOR OVERGROWTH OF THE GREATER TROCHANTER IN PERTHES’ DISEASE

Wang ZL, Liu ZQ, Zhang DW, He L, Li M, Liu CK, Qin JQ

Children Hospital, Chongqing, China

 

Objective: To explore the early x-ray risk signs for overgrowth of the greater trochanter (OGGT) in Perthes’ disease and offer the clues for the prevention.

Methods: To search for the special signs for OGGT the early x-ray films of Perthes’ disease with OGGT or without OGGT were reviewed. The correlation of OGGT with the classification, gender and age were analyzed.

Results: Five early radiography risk signswhich were related to OGGTwere put forward. The completely collapsed and disappeared femoral epiphysiswith the articular space narrowed; Extensive cyst in the metaphysis close to the growth plate;The interrupted or obscure growth plate; A big sequestrum in the epiphysis oppressing the growth plate; A central metaphyseal peak projecting towards the epiphysis. These five risk signs all emerged in the resorption stage and have a high sensitivityaccuracy and peculiarity for the predication of the OGGT. The correlation of OGGT with the classification, gender and age onsetting was also taken. It proved that the older the children, the more femoral head was involved, the more susceptibly OGGT developed.

Conclusion: The five risk signs may be an indication for operative intervention at early stage of Perthes’ disease progress.

 

 

 
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