• Giedrius Petryla, Rokas Bobina, Sigitas Ryliškis, Valentinas Uvarovas, Jaunius Kurtinaitis, Tomas Sveikata, Giedrius Kvederas, and Igoris Šatkauskas.
• Clinic of Rheumatology, Orthopaedics Traumatology and Reconstructive Surgery, Faculty of Medicine, Vilnius University, LT-03101 Vilnius, Lithuania.
• Medicina (Kaunas). 2021 Apr 25; 57 (5).

AbstractBackground and Objectives: There are no valid patient-based pelvic ring function assessment tools in Lithuania. The most widely used instrument is the Majeed Pelvic Score (MPS), which is proven to be an effective tool for assessing pelvic function after pelvic injuries. The aims of our study were: (1) the translation and cross-cultural adaptation of the MPS for the Lithuanian-speaking population, (2) to test the psychometric properties of the Lithuanian version of the MPS (MPS-LT) at follow-up two-time points after pelvic fractures. Materials and Methods: The MPS was translated and culturally adapted. Psychometric properties of the MPS-LT were determined in one patient group (n = 40) at two time-points during follow-up examination from 1.5 to 3 months (mean 2 months) and from 11 to 20 months (mean 12 months). Results: At the mean time of 2 months after trauma, Cronbach's α of the MPS-LT was 0.65. Correlation of the MPS-LT with the Iowa Pelvic Score (IPS) was r = 0.84 (p < 0.001), and with the Lithuanian SF-36, PCS was r = 0.53 (p < 0.001). At the mean time follow-up of 12 months, Cronbach's α was 0.86, correlation with the IPS was r = 0.92 (p < 0.001), and with the Lithuanian SF-36, PCS - r = 0.82 (p < 0.001). At the 2-month follow-up, neither floor nor ceiling effects were reached, but at 12 months, 27.5% of patients reached the ceiling effect, while none reached the floor effect. The effect size of the MPS-LT was 1.66. Conclusions: The MPS-LT has limited ability to measure functional outcomes at 2 months after pelvic fracture. In contrast, at the 12-month follow-up examination, the MPS-LT had a good ability to assess pelvic function, and it was sensitive to health changes. The MPS-LT can be used as a pelvic function assessment tool after pelvic fractures for the Lithuanian-speaking population.

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