Abstract：Objective To perform a clinical study of the arthroscopic treatment of posterior cruciate ligament avulsion fractures with TightRope steel plates. Methods A case series study was conducted. A total of 28 patients (20 males and 8 females) with PCL avulsion fractures were recruited from Sir Run Run Hospital Affiliated with Nanjing Medical University from January 2019 to October 2020. The patients were aged 37-65 (45.7±7.8) years old. Using the White classification, 15 cases were classified under Type Ⅱ, and 13 cases were classified under Type Ⅲ. All patients were treated with a TightRope steel plate under arthroscopy, and the postoperative incision healing, complications, and fracture healing time were observed. The Lysholm knee joint function score, pain visual analogue scale (VAS) score, and International Knee Joint Literature Committee (IKDC) score were compared 12 months before and after the operation. Results The operation was successfully performed in all 28 patients. The operation time was 50-90 (67±8) min. The patients recovered well, and the incisions healed in Stage I. No complications, such as vascular and nerve injury, intra-articular hematoma, and infection, occurred. All 28 patients were followed up for 12-14 months (mean 12.5 months). The X-ray conducted during the follow-up period showed that the fractures were all healed without displacement. No loosening, shedding, or breakage of the fixation was observed. The fracture healing time was 2-4 (2.5±0.6) months. During the follow-up period, two cases had limited knee flexion, one case had mild knee extension limitation, and one case had discomfort behind the knee joint. The symptoms were relieved after corresponding treatment. The 24 other patients recovered well, and no particular discomfort was reported. The preoperative VAS, Lysholm knee function, and IKDC scores of the 28 patients with knee pain were (6.8±0.9), (45.7±6.3), and (18.3±5.5), respectively. Twelve months after the operation, the pain VAS, Lysholm knee function, and IKDC scores were (2.2±0.7), (86.2±5.3), and (95.8±3.1), respectively. The Lysholm knee joint function and IKDC scores 12 months after the operation were higher than those before the operation, and the pain VAS score after the operation was lower than that before the operation; the differences were statistically significant (t=49.95, 114.35, 18.95; all P values <0.05). Conclusion Arthroscopic treatment of PCL avulsion fractures with TightRope steel plates is simple and has a good clinical effect.
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2023, Vol. 28 
