Abstract: Background: Tibial eminence avulsion fractures commonly occur in children and adolescents aged between 8 and 14 years. A valgus-directed force associated with an external torsion when the knee is in hyperextension is the most frequently referred mechanism, which closely resembles the one for anterior cruciate ligament (ACL) tears. This happens because the epiphyseal ossification process reaches the tibial eminence only in late childhood or adolescence, leaving this area more vulnerable to tensile forces than the ACL itself. In adults, this lesion is rare and associated either with high- energy trauma, boot-induced injuries in skiers or forced internal rotation with a flexed knee. Avulsion fractures may either involve the intercondylar depression where the ACL insertion lies only or, less frequently, the entire tibial spine with medial and lateral plateau.
Materials and Methods: From November 2019 to December 2020, an intervention clinical study was carried out at Sanjay Gandhi institute of trauma and orthopaedics, A number of 30 patients having avulsion tibial spine fracture classified Meyers & McKeever Type II, TYPE III and IV were involved in our study.
Results: Fractures were united within 3 months after surgery in all 30 cases. The Lysholm score was improved to 98(98.17 ± 1.599). In 2 patients, post operative knee stiffness was noted and arthrolysis was done for the same. All patients returned to their pre-injury physical activities at the last follow-up.
Conclusion: Arthroscopic suture pull-out fixation for type III and IV tibial spine avulsion results in excellent clinical and radiological outcomes in patients with open and closed physis without any significant complications.
