25dkou020 10.3205/25dkou020 urn:nbn:de:0183-25dkou0205 Meeting Abstract Godoy-Monzon Godoy-Monzon Daniel D

Hospital San Rafael, Cadiz, Spanien

author Telesca Telesca Patricio P

Hospital San Rafael, Cadiz, Spanien

author Espinosa Espinosa Jose J

Hospital San Rafael, Cadiz, Spanien

author German Medical Science GMS Publishing House

Düsseldorf

610 20251031 engl This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). M0634 020 Deutsche Gesellschaft für Orthopädie und Unfallchirurgie Deutsche Gesellschaft für Orthopädie und Orthopädische Chirurgie Deutsche Gesellschaft für Unfallchirurgie Berufsverband für Orthopädie und Unfallchirurgie Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2025) Poster | Hüft- und Beckenchirurgie Berlin 20251028 20251031 AB12-4469 TextObjectives and questions: Osteonecrosis of the femoral head (OFH) is more common among those who had a history of COVID-19 virus. Considering the young age and high-performance demand, a total hip arthroplasty (THA) with a short femoral stem could be a suitable solution. The aim of this study is to compare subsidence, anterior femoral pain and osteointegration of short and standard femoral stems, in patients diagnosed with OFH.Material and methods: We have prospectively followed two groups of patients, aged 21 to 65 years, who underwent THA for OFH for minimum 2-year follow-up, with a short or standard cementless femoral stem (case-control ratio 1:3). Patients with previous trauma, infection or metabolic disease were excluded. Clinical and radiographic assessments were scheduled at 45 days, 3 months, 6 months, and annually thereafter. The evaluation included Harris Hip Score, Roles and Maudsley Score, stem subsidence, leg length discrepancy, femoral and acetabular signs of osteointegration and heterotopic ossification. The Mann-Whitney test was used to analyse differences between non-parametric variables. Continuous variables were analysed with Student's t-test and dichotomous variables with Fisher Exact test.Results: Short stem group (17 hips) and standard stem group (51) were followed for mean 2.2 years, with mean age of 41.8± 8.6 years and 43.2±8.0 years, respectively. All the femoral stems were well osseointegrated at the last follow-up, showing no femoral radiolucency nor periprosthetic osteolysis nor loosening in either groups. Two hips in the control group had a 2 mm subsidence at 3-month follow-up with no clinical symptoms. Leg length discrepancy was 5±3 mm in short stem group and 6±2 mm in standard stem group. Clinically, postoperative Harris Hip Score was 92±3.7 points in the short stem group and 92±3.5 points in the standard stem group. Patient satisfaction was excellent for all the patients, but 4 patients in the control group scored good.Discussion and conclusions: Using short cementless femoral stem in patients diagnosed with OFH is showing similar results to those receiving the standard stem, at short term follow-up. Further analysis could be possible increasing the follow-up and including more patients. 0 0 0 0