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ORIGINAL ARTICLES
Year : 2022  |  Volume : 37  |  Issue : 2  |  Page : 55-58

Comparison between outcomes of small head and large head prosthesis use in total hip arthroplasty


Department of Orthopaedics, S. N. Medical College, Agra, Uttar Pradesh, India

Correspondence Address:
Ashutosh Verma
Department of Orthopaedics, S. N. Medical College, Agra, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jbjd.jbjd_15_22

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Introduction: Total hip replacement (THR) currently uses a various size of head and bearing. These days the most common head diameter used in the THR is 32 mm. The purpose of our study is to compare the functional and radiographic evaluation of outcomes of two groups of patients undergoing the THR, received either small diameter (≤28 mm) or large diameter (≥32 mm) femoral head prosthesis. Materials and Methods: This was an interventional prospective study done between September 2018 and August 2020. The diameter of femoral head sizes 32 mm and 28 mm was used in this study. At definite intervals, patients were regularly followed and specifically assessed for functional and radiographic evaluation. Results: During follow-up of patients with 32-mm femoral head diameter excellent functional results were achieved as graded by Harris hip score (P < 0.0001). No patients showed any complications in the large diameter femoral head group. Conclusions: Large femoral head diameter prosthesis may lead to more stability, range of motion, wear rate, and reducing the complications of revision surgery, but with small diameter femoral head, there is an increased chance of dislocation, impingement, and more complications.


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