Prospective Evaluation of the Limb Reconstruction System as a Definitive Treatment for Compound Tibial Fractures: Radiological and ASAMI (Association for the Study and Application of the Method of Ilizarov) Functional Outcomes.

Background Open (compound) tibial fractures present a management challenge because of soft-tissue injury, contamination, and the risk of infection. The monolateral limb reconstruction system (LRS) is used as a definitive external fixation option that may permit stable fixation, wound access, and early weight-bearing. Objectives This prospective study aimed to evaluate the radiological and functional outcomes of the LRS used as a definitive fixation method in Gustilo-Anderson grade II-IIIB open tibial fractures, employing the ASAMI (Association for the Study and Application of the Method of Ilizarov) scoring system as a standardized assessment tool. The study also aimed to analyze the time to union and complication patterns to determine the feasibility and early functional recovery achievable with LRS as a single-stage management strategy in complex open tibial fractures. Methods This is a prospective single-center series of 30 consecutive adult patients (mean age = 32.7 years; 26 males) with open tibial shaft fractures treated definitively with the monolateral LRS. The Gustilo grade distribution was as follows: grade II = 14/30 (46.7%), grade IIIA = 10/30 (33.3%), and grade IIIB = 6/30 (20.0%). Primary outcomes were time to radiological union and ASAMI bone and functional scores at final follow-up. Secondary outcomes included complication rates. Minimum follow-up was 12 months. Continuous variables are presented as mean ± SD (range) and categorical variables as counts and percentages, with 95% confidence intervals. Results Thirty patients (mean age = 32.7 years; 26 males) were included. The mean time to radiological union was 24.6 weeks (range = 20-34). ASAMI bone results were excellent in 12/30 (40.0%; 95% CI: 22.7-59.4) patients, good in 11/30 (36.7%), fair in 5/30 (16.7%), and poor in 2/30 (6.7%) patients. ASAMI functional results were excellent in 8/30 (26.7%; 95% CI: 12.3-45.9) patients, good in 15/30 (50.0%), fair in 4/30 (13.3%), and poor in 3/30 (10.0%) patients. Complications included pin-tract infection in 6/30 (20.0%; 95% CI: 7.7-38.6) patients and joint stiffness in 4/30 (13.3%; 95% CI: 3.8-30.7) patients. There were no cases of non-union, implant failure, or deep infection (0/30; 95% CI: 0-11.6 for each). Conclusion In this prospective single-center series (n = 30), definitive fixation of open tibial shaft fractures with the LRS resulted in favorable radiological and functional outcomes, with acceptable complication rates. However, given the small sample size, single-arm design, and absence of a control group, these results should be interpreted cautiously. Larger, controlled studies are required to validate these findings and better define the comparative role of LRS in the management of compound tibial fractures.