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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Legg-Calvé-Perthes syndrome x ray

Introduction

Overview

Overview

X Ray

X Ray

X-Rays of the hip joint are absolutely necessary. Diagnosis is made predominantly by X-ray study, together with physical examination (MRIs have also been found useful for judging the extent of the deformity). Sufferers typically have limited range of motion in their hip, particularly when rotating the joint.

Early signs

  • Small femoral epiphysis (96%)
  • Sclerosis of the femoral head with sequestration and collapse (82%)

Late signs

  • Radiolucent crescent line representing a subchondral fracture
  • Femoral head fragmentation and femoral neck cysts from intramedullary hemorrhage or extension of physeal cartilage into metaphysis, loose bodies, and coxa plana.
  • Coxa magna or remodeling of the femoral head, which becomes wider and flatter and similar in appearance to a mushroom.
Sources

Sources

Copy left images obtained courtesy of RadsWiki [2]

References

References

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]