Clinical and radiological assessment of the Polish modification of the Ilizarov external fixator for the treatment of intra-articular calcaneal fractures

Background. There is currently no established gold standard for the treatment of calcaneal fractures.
Objectives. To conduct a clinical and radiological evaluation of patients following intra-articular calcaneal fractures treated with the Polish modification of the Ilizarov method.
Materials and methods. This was a 2-center retrospective study. We evaluated 27 patients (2 women and 25 men) aged 28–73 years (mean age 50.5 years) after treatment of intra-articular calcaneal fractures with the Polish modification of the Ilizarov method. We assessed pain using a visual analogue scale (VAS), American Orthopedic Foot and Ankle Society (AOFAS) scores, patient satisfaction with treatment, use of analgesics, duration of Ilizarov treatment, length of hospital stay, duration of surgery, patient’s declared willingness to choose the same treatment again, complications, degenerative changes, Böhler angle, inflection angle, and Gissane angle.
Results. The mean follow-up period was 3 years and 2 months. Following treatment, the mean VAS pain score was 2.3. Prior to surgery, all patients were taking analgesics in comparison with only 2 patients (7.4%) at long-term follow-up. The treatment was rated as satisfactory by 11 patients, with 16 patients rating it as highly satisfactory. The mean post-treatment AOFAS score was 76.6 points. The Ilizarov fixator was removed after a mean period of 88 days. The mean duration of hospital stay was 7.4 days. The mean duration of the procedure was 44 min. All patients would choose the same treatment again. Complications were observed in 5 patients. The long-term follow-up visit revealed degenerative changes in the talocalcaneal joint in 8 patients. The median Böhler angle was 5.5° preoperatively and 28.5° postoperatively, p < 0.001. The median preoperative inflection angle of 160° decreased to 145°, p < 0.001. The median preoperative Gissane’s angle of 119° increased significantly to a median postoperative value of 143°, p < 0.001.