Objective To explore the clinical effect of arthroscopically assisted minimally invasive nail-in-nail internal fixation in the treatment of calcaneal fractures.Methods A retrospective analysis was conducted on the clinical data of 16 patients with calcaneal fractures admitted to Zibo Hospital of Traditional Chinese Medicine from October 2019 to December 2022. Among them, there are 10 males and 6 females; aged from 32 to 68 years old, with an average age of (44.63±10.10) years. All patients underwent arthroscopically assisted minimally invasive nail-in-nail internal fixation treatment. The operation time, intraoperative blood loss, length of hospital stay and fracture healing time were recorded. The calcaneal length, height, width, as well as the recovery of Böhler and Gissane angles before and after surgery, and foot function at the last follow-up using the American Orthopedic Association of Foot and Ankle (AOFAS) standards were evaluated.Results The postoperative follow-up period was 6-18 months, with an average of (10.21±3.47) months. All 16 patients successfully underwent surgery without complications such as incision infection or skin necrosis. The operation time was (105.63±10.47) min, the intraoperative blood loss was (21.25±7.42) mL, and the hospital stay was (7.13±1.26) d. All patients achieved bone healing, with a healing time of 3-7 months and an average of (5.06±1.34) months. At the last follow-up after surgery, the length, height, width, Böhler angle, and Gissane angle of the calcaneus were significantly improved compared to before surgery, and the differences were statistically significant (P<0.05). Compared with the preoperative assessment, at the last follow-up, the AOFAS rated foot function as 85-97 points, with an average of (91.25±3.77) points, indicating a significant improvement in function.Conclusion Arthroscopic assisted minimally invasive nail-in-nail internal fixation is an effective treatment method for calcaneal fractures, which has the advantages of minimally invasive operation, minimal body damage, reduced incidence of related surgical complications, and fast postoperative recovery. It represents an option for clinical minimally invasive treatment of calcaneal fractures. |