Functional outcome analysis of Uncemented Total Hip Replacement

Srimohanakanna, V (2015) Functional outcome analysis of Uncemented Total Hip Replacement. Masters thesis, Kilpauk Medical College, Chennai.


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BACKGROUND: Cemented total hip arthroplasty was the ideal mode of joint replacement. but bone cement is the weakest link between the implant and bone. Subsequently failures of cemented total hip arthroplasty were seen due to various reasons like micro fractures of cement mantle under torsional loading, loosening due to particulate induced osteolysis, bone loss with difficulty in future revision. The above mentioned adverse effects of bone cement led to the popularity of uncemented total hip arthroplasty. Here porous and hydroxy apatite coated components are used. This creates a biological interface called bone in growth. Thus uncemented total hip arthroplasty today has become, the main mode of hip replacement especially in young patients. AIM: To analyze the functional and radiological outcomes of total hip Replacement. MATERIALS AND METHODS: This study was conducted at Government Royapettah Hospital, Chennai, consisting of 30 patients for various indications in the age group of 20 -60 yrs. Appropriate preoperative planning was done and correct acetabular and femoral component was selected. A standard protocol was used in the post operative period. Follow up visits are made at 3 month, 6 month, 1 year and periodically thereafter. Routine X-rays are taken at 1-2 year . Post operatively Radiological assessment done for femoral component and acetabular component. Functional assessment done with Modifed Harris Hip Score. RESULTS: Radiologically Majority of the femoral stem had shown good osteo integration with bony in growth. In majority of cases acetabular cup seated correctly without polar gaps and in optimal inclination. Anterior thigh pain in 2 cases and limb length discrepancy in 5 cases and intra operative femur fracture in 1 case were the encountered complications. CONCLUSION: Restoration of the biomechanics of the hip is important for the good outcome and longevity of the prosthesis . Patients with chronic arthritis are incapacitated by pain and restricted motion and thus the relief of these two factors greatly determines the satisfactory outcome of the surgery. Uncemented Total hip arthroplasty is mainly indicated in young patients with adequate bone stock. Careful patient selection along with pre op and post op evaluation of both patients and radiographs is essential for the success of total hip arthroplasty.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Functional outcome analysis ; Uncemented Total Hip Replacement.
Subjects: MEDICAL > Orthopaedics
Depositing User: Subramani R
Date Deposited: 25 Sep 2017 03:25
Last Modified: 25 Sep 2017 03:25

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