Relative radiographic bone density measurement in uncemented primary total hip replacement using IMAGE J-software during daily practice: Clinical, functional and radiographic study

25dkou019 10.3205/25dkou019 urn:nbn:de:0183-25dkou0190 Meeting Abstract Relative radiographic bone density measurement in uncemented primary total hip replacement using IMAGE J-software during daily practice: Clinical, functional and radiographic study 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 019 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 AB12-4468 TextObjectives and questions: Cementless total hip arthroplasty’s (THA) success relies on its primary mechanical stability and secondary biological fixation, which can be assessed by specific exams like dual-energy x-ray absorptiometry (DEXA) or computed tomography (CT) scan. Here we retrospectively evaluate the bone adaptation of a cementless primary THA using a validated image analysis tool and plain radiographs.Material and methods: Patients who received a cementless THA from September 2020 to July 2022 were included in the study. Clinical scores and X-rays were prospectively collected. Relative Bone Density (RBD) was calculated for each patient, using Rossler validated method with Image-J software, to assess bone density changes after THA.Results: 155 patients with mean 56.4-year-old (range 31–84) were followed-up for 38.5 months. Harris Hip Score was 92.2 at the latest follow-up. Radiographically, all the cups were positioned in the Lewinnek safe zone. Five cups showed non-progressive radiolucent lines. RBD showed a significant decrease in Gruen zone 1, while the percentage difference int the other zones ranged from -9% to +4%. In the cohort there were 4 intraoperative fractures treated with cerclage wires. One patient had a superficial infection, and another one had a deep infection.Discussion and conclusions: In conclusion, the ability of a cementless THA has been confirmed as well as the possibility to evaluate accurately the bone-implant interface using plain radiographs. 0 0 0 0