Published in:
Open Access 01-12-2020 | Osteoarthrosis | Research
RETRACTED ARTICLE: The majority of conversion total hip arthroplasties can be considered a primary replacement: a matched cohort study
Published in: European Journal of Medical Research | Issue 1/2020
Login to get accessAbstract
Background and study aims
The success of conversion total hip arthroplasty (THA) among primary THA
and revision THA remains unclear. We hypothesized that most conversion THA’s can be
performed using primary implants and will have an uncomplicated post-operative
course.
Materials and methods
Thirty-six patients (23 females, mean age 68,0y) who underwent
conversion THA for failed interventions for proximal femur fractures in the period
2008–2018 were matched sequentially against patients of the same sex and age who
underwent primary THA or revision THA. Data were collected on implants used, major
complications, and mortality. PROMs used included the Western Ontario and McMaster
Osteoarthritis Index, Harris Hip Score, Visual Analogue Scale and the EQ-5D Health
Questionnaire.
Results
Seventy-two percent of patients who underwent conversion THA were
treated with primary implants and never suffered from a major complication. PROMs
were excellent for this group of patients. The distinction
primary/conversion/revision THA could not explain differences in outcomes; however,
the necessity of using revision implants and the development of major complications
could.
Conclusions
The majority of conversion total hip arthroplasties can be considered a
primary replacement. Predicting outcomes for THA should focus on patient frailty and
technical difficulties dealing with infection, stability and loss of bone stock and
should discard the conversion versus revision terminology.