Outcomes of total hip arthroplasty in the octogenarian population

Background: The outcomes of total hip arthroplasty (THA) in the elderly population are uncertain. With the rapid expansion of this population group, this study aims to determine whether increasing age affects the outcomes of THA by utilising the largest patient cohort and follow-up period within the literature. Patients and methods: All patients of 80 years and over who underwent primary THA between 1994 and 2004 at the authors' institution were compared to a cohort aged under 80 with the same diagnoses and during the same time period. Mean follow-up time was 5.9 years with a select group being reviewed at year 10. Results: Pain scores were comparable at year five, whilst mean Harris hip scores were significantly lower in the octogenarians. Median hospital stay was three days longer in the elderly group. Complication rates were also higher (38.1% cf 28.7%) however fewer cases of revision were noted (1.4% cf 3.8%). Patient satisfaction was comparable between groups. Conclusion: This study suggests pain improvement, low revision rates and high satisfaction are sufficient to justify THA in the elderly population.