Surgical hip dislocation in the treatment of various hip surgeries

LI Jun; MEI Yu-feng; WANG Hai-peng; CHEN Zhu-feng; HU Yun-sheng; ZHOU Cheng-pei; WANG Bo

doi:10.3969/j.issn.2095-252X.2016.02.004

Abstract：Objective To analyze the clinical and radiographic results of surgical hip dislocation ( SHD ) in the treatment of various hip surgeries, and to evaluate the influence factors of the clinical outcomes. Methods From February 2008 to August 2013, 29 SHD surgeries were performed. Nineteen patients were followed up with the average of 28 months ( range: 11 - 46 months ). Primary diagnoses of the hip abnormalities: femoracetabular impingement ( FAI ) in 8 cases, FAI and avascular necrosis of the hip ( AVN ) in 3 cases, hip benign tumors in 5 cases, Perth’s disease in 3 cases. All patients had the symptoms of the hip pain and the dysfunction of the hip. Radiographs indicated the deformity. The mean age was 31.2 years ( range: 16 - 55 years ). In the latest follow-up, the hip X-ray was applied to evaluated the femur head avascular necrosis and Non-Arthritic Young Hip Scores ( YHS ) was applied to evaluate the hip functions. Results preoperatively and postoperatively were compared and analyzed by statistics. Results The average time of the SHD was 32.6 min and the bleeding volume was 353.43 ml. All patients had some degree of the pain relief and increased range of motion. The mean YHS improved from ( 49.42 ± 7.73 ) to ( 83.52 ± 10.19 ) points. The modified YHS satisfactory scores showed excellent in 5 cases ( 26.3% ), good in 12 cases ( 63.2% ) , fair in 1 case ( 5.3% ) and poor in 1 case ( 5.3% ). There were no non-unions of the trochanteric osteotomy sites, any signs of AVN, or inter-trochanteric fractures. Conclusions SHD can be used to treat a variety of hip joint abnormalities with good view of the hip joint, and no disturbance of the blood supply for the femoral head.