DOI: http://dx.doi.org/10.18203/issn.2455-4510.IntJResOrthop20201519

Randomised prospective comparative analysis of functional outcome of hemiarthroplasty with cemented bipolar and uncemented unipolar prosthesis

Hashmukh S. Varma, Sachin Upadhyay, Nuthan Jagadeesh

Abstract


Background: Hemiarthroplasty (HA) has been considered as better treatment modality in elderly patients compared to internal fixation because of better outcome, early mobilization, associated with HA. However, there is inadequate evidence to support the choice between unipolar or bipolar HA. The aim of this study was to compare the outcome of uncemented unipolar with the cemented bipolar prosthesis in geriatric patients especially in an Indian setup.

Methods: Sixty five patients above 60 years of age and displaced fracture of the femoral neck were randomly allocated to treatment by either unipolar or bipolar HA, in the Department of Orthopaedics, between September 2014 and October 2016. Functional outcome was assessed and compared using Harris hip score and radiological parameters with X-ray with serial follow-up at 3, 6, 12 and 18 months.

Results: The two groups of patients with mean age of 68±7 years in bipolar group and 68±6 years in unipolar group did not differ in their pre-injury characteristics and perioperative parameters. The mean Harris hip score in cemented bipolar and uncemented unipolar groups was 86±8.53 and 85.27±10.09, respectively (p=0.687). There were no differences in functional activities either group.

Conclusions: Based on the results of our study, there appears to be no statistical difference between the two groups, uncemented unipolar HA and cemented bipolar HA in terms of functional outcome and various complications discussed. Uncemented unipolar HA is cheap, less technically demanding, suitable in fragile old patients.


Keywords


Bipolar hemiarthroplasty, Unipolar hemiarthroplasty, Harris hip score, Neck of femur

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References


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