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Beitragstitel Results of total hip arthroplasty in patients younger than 25 years
Beitragscode P24
  1. Antoine Chapot
  2. Pierre-Yves Zambelli Unité pédiatrique de chirurgie orthopédique et traumatologie CHUV
  3. Sophie Merckaert CHUV - Centre hospitalier universitaire vaudois Vortragender
Präsentationsform Poster
  • A04 - Hüfte
Abstract Background
Total hip arthroplasty (THA) is one of the most performed surgery in orthopedics today.
It shows good functional results and allows a notable reduction in pain.
The majority of THA concern a population with an average age of 69 years with primary hip osteoarthritis as the main etiology.
In younger patients the etiology is mainly due to rare hip conditions during childhood and adolescence. It is thought that pediatric hip disorders account for about 9-10% of all primary THA.
We performed an observational study evaluating the quality of life at medium and long-term follow-up after THA performed before the age of 25 years.

We performed a retrospective monocentric study including all patients that benefits from a THA before the age of 25 years at our tertiary referring orthopedic center between January 2008 and December 2018.
Patients were then invited to a clinical follow-up were they concomitantly completed the Harris hip score as well as the Oxford hip score.
Etiology, previous surgeries, gender and age at the moment of THA were recorded.
We performed a descriptive statistical analysis of the demographic data.
The Spearman correlation test revealed a statistically significant strongly positive correlation between the two scores (ρ = 0.811, p-value < 0.001).

Of the 19 patients (22hips) with a THA 11 patients with a total of 12 THA were included.
Six patients (60%) were males. Mean age at surgery was 16 years. Mean follow up was 6 years (min 2 years, max 9 years).
Regarding the Harris and Oxford hip scores, the median score was 88 (+/- IQR 17,5), with a mean at 81 (+/- SD 16,4) and 42,5 (+/- IQR 8,75) with a mean of 39,5 (+/- SD 8,1) respectively.
At last follow-up, no patients had signs of implant loosening or had needed revision surgery

THA provides improved hip function and stable implant fixation at short- to midterm followup.