Total HIP Arthroplasty For Treatment Of Developmental Dysplasia Of The HIP

Objective:To investigate the techniques of the total hip arthroplasty in the treatment of Developmental dysplasia of the hip(DDH).Discuss the mechanism,pathological changes,classification,treatment and surgical points of Developmental dysplasia of the hipMethods:Between July2002 and Octobur 2007,a total of 31 hips in 29 patients with DDH underwent the total hip arthroplasty.Among the patients, 7were male and 22 were female,with their ages ranging from 22 to 54 years and an average age of 44 years.The patients mainly suffered from pain and claudicatio.According to Perner Clasification,19 of them were gradeⅠ,7 were gradeⅡ,3 were gradeⅢ,2 were gradeⅣ.The Harris score was 24—58 with an average of 42.Results:All the patients were followed up for 6 months to 5 years.The Harris scores after operation were 84-95,the average was 90.respectively. The diferences between peroperation and postoperation were significant. All the patients were pain-free and there was no sign of aseptic loosening and subsidence.28 cases of the patients their limb differences between two-leg within 2 cm,three cases of the patients limb differences greater than 2 cm.Conclusion:The total hip arthroplasty is a nefective method for the treatment of DDH.The operation was complicated,we must fully prepared before operation.In operation,a new acetabular bed should be reconstructed currectly.After operation,active rehahilitation should be carried out.Most of the patients can obtain satisfactory recent clinical result.