Abstract
Despite the great success of total hip arthroplasty (THA), many patients were fairly dissatisfied after surgery. Therefore, patient-reported outcome measures have become of an utmost importance in assessing the results after joint replacement. This study was conducted to compare the postoperative patient-reported satisfactions after implantation of two commonly used THA designs. Of 180 patients, who initially fulfilled the study selection criteria and received cementless THA, 165 patients were finally eligible and enrolled in this prospective comparative randomized study. All surgeries were carried out between 2010 and 2018. Two groups of homogenous demographic and clinical data were present. Group A patients (n = 80) were treated by large head THA, whereas group B (n = 85) received dual mobility cup designs. The Western Ontario McMaster Universities Osteoarthritis Index and visual analog scale were used for clinical evaluation. The degree of improvement that the patient expected and hoped before undergoing their surgeries was estimated using the score of the new knee society. The self-administered patient satisfaction scale was used to record the levels of patient satisfaction after surgery, and their values were statistically analyzed in relation to preoperative expectation scores (ie, score of the new knee society) and different clinical and sociodemographic variables. After a mean follow-up of 79 ± 4.13 months (range 24 to 96 months), both groups recorded a significant improvement (P < 0.05) in Western Ontario McMaster Universities Osteoarthritis Index and visual analogue scale scores. Patients of group B were significantly more satisfied (P < 0.05) than those of group A up to the first postoperative year. Certain studied variables were linked to superior satisfaction results among group B at the last follow-up. Dual mobility THA provides better patient satisfaction than their standard large head alternatives specifically among elderly patients, socially unsupported individuals, farmers, heavy manual workers, and those with high levels of expectations. Clinical Trials.gov identifier: NCT04333316.
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More From: The Journal of the American Academy of Orthopaedic Surgeons
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