Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (4): 511-516.doi: 10.3969/j.issn.2095-4344.2014.04.004

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Total hip arthroplasty for Crowe type IV developmental dysplasia of hip in adults

Qi Xiao-peng, Zhang Yuan-kai, Li De-qiang, Li Ming   

  1. Department of Orthopedics, Qilu Hospital of Shandong University, Jinan 250012, Shandong Province, China
  • Revised:2013-11-16 Online:2014-01-22 Published:2014-01-22
  • Contact: Li Ming, Professor, Master’s supervisor, Department of Orthopedics, Qilu Hospital of Shandong University, Jinan 250012, Shandong Province, China
  • About author:Qi Xiao-peng, Attending physician, Studying for master’s degree, Department of Orthopedics, Qilu Hospital of Shandong University, Jinan 250012, Shandong Province, China

Abstract:

BACKGROUND: Total hip arthroplasty is an optimal choice for patients with late hip dysplasia. Crowe type IV developmental dysplasia of the hip increases the difficulty of the operation, and the surgery is controversial.
OBJECTIVE: To evaluate the clinical effects of total hip arthroplasty on Crowe type IV developmental dysplasia of the hip and the method of reconstruction of acetabulum and the treatment of proximal femur.
METHODS: A total of 12 patients (14 hips) with Crowe type IV developmental dysplasia of the hip underwent total hip arthroplasty. Preoperative Harris hip score was averagely (35.0±6.8) points. All hips were treated with small acetabular components combined with medial protrusion technique in acetabular reconstruction, as well as subtrochanteric shortening osteotomy in femur. Joint function of hips was evaluated according to the Harris hip score.
RESULTS AND CONCLUSION: All patients were followed up with an average of 4.6 years (ranged 1 to 7 years). Two cases (two hips) suffered from infraction of greater trochanter of femur during replacement, and it was fixed with wire. There was complete sciatic nerve injury in one case, which partially restored after conservative treatment for 1 month. No infection, prosthesis loosening, or deep venous thrombosis with obvious clinical manifestations was visible. Bone union was observed at the site undergoing osteotomy at the side of femur. After replacement, final follow-up showed that Harris hip score was averagely (84.0±7.0) points. The mean amount of postoperative leg lengthening was 5 cm (range 4-6 cm). Shortened limbs were corrected satisfactorily. These results suggested that total hip arthroplasty using small acetabular component, medial protrusion, and femoral subtrochanteric shortening osteotomy technique for the Crowe type IV developmental dysplasia of the hip can effectively restore hip function and leg length. The long-term curative effects require further investigations.


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


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Key words: hip joint, arthroplasty, replacement, hip, bone development, arthrogryposis, venous thromboembolism, acetabulum

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