Bankart knee. Operative treatment of posterior part of lateral tibial condyle fracture with concomitant avulsion injury of anterior cruciate ligament (ACL). Technique and case report

Abstract

Fractures of the posterolateral part of the tibial plateau (PLTP) are rare and complex fractures among other orthopedic entities. This case report describes a 54-year-old male who suffered a twisting injury of the left knee in a scooter crash. As a result, impaction fracture and displacement of the posterolateral margin of the tibial plateau were diagnosed with concomitant avulsion of the intercondylar eminence of the tibia and medial tibial condyle cleft fracture. The treatment comprised reduction of the medial tibial condyle (MTC) cleft fracture with one cancellous screw, arthroscopic bone-suture of the intercondylar eminence, and reduction of compressed PLTP with fixation of the displaced fragment on a distal radius T-plate working as a “buttress” rather than firm stabilizer. The operative technique of PLTP impaction fracture reduction is described in an instructional manner.

Keywords

• Bankart knee
• Bankart lesions
• arthroscopic bony Bankart repair
• tibial plateau fracture
• impaction tibial plateau fracture
• ACL avulsion injury