derotational osteotomy in scfe complicated with avascular necrosis yumc hui wan park, hyun woo kim...
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Derotational osteotomy in SCF
E complicated with avascular n
ecrosis
YUMC
Hui Wan Park, Hyun Woo Kim
Yonsei University College of Medicine
PH
•2000. 05 - pinning-in-situ for SCFE lt.
•2000. 09. -- removal of penetrated screw due to AVN
•2001. 05. 31. – adductor tenotomy
•2002. 01. 03. -- cheilectomy
Improvement after derotation osteotomy ( one year F/U )
• Less pain around hip & knee j. during gait
• Easier abduction
• IR : -10o 10o
Causes of increased external rotation in SCFE
• Decreased anteversion – retroversion
• Collapse of femur head due to avascular necrosis
Mechanical factors in SCFE
Prichett (1988)
Slipped epiphysis patients have relative retroversion, and this generates increased saggital plane shear stress at the proximal femoral growth plate
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