The follow up study revealed fixed hip joint in 18 cases, positive Thomas sign in 22 cases, limited motion of hip joint in 12 cases, and unequal length of lower extremities in 25 cases;

• 随访时局部发现 ,髋强直 18例 ,髋活动受限 12例 ,双下肢不等长 2 5例 ,托马氏征阳性 2 2例 ;