Medial Patellofemoral Ligament Reconstruction with Semi-Patellar Tunnel Fixation: Surgical Technique and Mid-Term Follow-Up

• Published in: Medical science monitor 2017-12, Vol.23, p.5870-5875
• Main Authors: Niu, Jinghui, Qi, Qi, Fu, Kunpeng, Duan, Guman, Liu, Chang, Wang, Fei
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Clinical Research; Female; Follow-Up Studies; Fractures, Bone - surgery; Humans; Joint Instability - surgery; Knee Injuries - surgery; Knee Joint - surgery; Ligaments, Articular - surgery; Male; Patella - surgery; Patellar Dislocation - surgery; Patellofemoral Joint - surgery; Reconstructive Surgical Procedures - methods; Young Adult
• ISSN: 1643-3750; 1234-1010; 1643-3750
• DOI: 10.12659/MSM.905583

BACKGROUND The present study aimed to describe a new safe and economical technique for medial patellofemoral ligament (MPFL) reconstruction with satisfactory clinical outcomes, and present the results of a four-year follow-up. MATERIAL AND METHODS Thirty-two patients with recurrent patella dislocation, who underwent MPFL reconstruction with two semi-patellar tunnels and hardware-free patellar fixation between 2011 and 2013, were included in the study. Patella stability was tested by an apprehension test preoperatively and at follow-up. Knee function was evaluated using the Kujala score, Lysholm score, and Crosby-Insall grading system. Patellar congruence angle and patellar tilt angle were measured using an axial computed tomography scan. Furthermore, objective feelings of patients and complications were recorded. RESULTS Thirty knees (30 patients) were followed for a minimum of 48 months. The apprehension test was positive in all patients preoperatively, but negative at follow-up. Kujala and Lysholm scores increased from 58.9±9.6 to 92.0±4.8 (p