Mike Millis, M.D., Boston Children's Hospital
Mike Millis, M.D., Boston Children's Hospital
Mike Millis, M.D., Boston Children's Hospital
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The Normal Hip: Anatomic Characteristics<br />
• Congruous, well-aligned surfaces<br />
• “Good” coverage: not too little; not too much!<br />
– Lateral C-E angle 25-35°<br />
• Normal version: A and P rims<br />
– No crossover sign; rims meet at corner of acetabulum<br />
• Symmetric, wide cartilage space<br />
• Thin, almost horizontal sourcil: the weight-bearing zone<br />
– Tönnis roof angle: 0 to 10°
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