Salter Pelvic Osteotomy Combined with Subtrochanteric Rotational Osteotomy in the Treatment of Developmental Hip Dysplasia in Tibetan Children

Zhou Jinlei; Li Ping; Yang Timin

Abstract：Objective To investigate the clinical efficacy of Salter pelvic osteotomy combined with subtrochanteric rotational osteotomy in the treatment of developmental dysplasia of the hip(DDH)in Tibetan children.Methods A retrospective analysis was performed for 144 children with DDH(144 hips)admitted to Tibet Autonomous Region People's Hospital from January 2012 to January 2019,including 31 males and 113 females.The age was 18～68 months,with an average of(36.40±14.61)months.According to Tonnis classification,64 cases were Ⅲ and 80 cases were Ⅳ.Salter pelvic osteotomy combined with subtrochanteric shortening,derotation personalized osteotomy was performed to study the changes of acetabular index(AI)and center edge angle(CEA)before and after surgery,the McKay grade of postoperative hip function score,the excellent rate of Severin imaging classification,and the postoperative avascular necrosis of the femoral head(ANFH).Results The follow-up time of all children was 13～53 months,with an average of(28.00±8.57)months.Al recovered from preoperative(37.20±4.08)° to(19.96±2.00)°,and CEA recovered from preoperative(-38.46±8.81)° to(29.57±5.70)°.The excellent rate of McKay grade was 88.19％,the excellent rate of Severin imaging type was 91.66％,and there were 3 cases of postoperative redislocation.There were 14 cases(9.72％)of postoperative ANFH,including 12 cases(8.33％)with type Ⅰ and 2 cases(1.38％)with type Ⅱ.Conclusion The efficacy of Salter pelvic osteotomy combined with subtrochanteric rotational osteotomy in the treatment of type Ⅲ and Ⅳ DDH in Tibetan children is certain.