2017 ISAKOS Biennial Congress ePoster #1724

 

The Influence Of Medial Patellofemoral Ligament Reconstruction On Clinical Results And Sports Activity Level

Bogdan Ambrozic, PhD, Ankaran SLOVENIA
Samo Novak, MD, Murska Sobota SLOVENIA

Valdoltra Orthopaedic Hospital, Ankaran, SLOVENIA

FDA Status Not Applicable

Summary

Medial Patellofemoral Ligament Reconstruction

Abstract

Objectives: The aim of this study was to demonstrate postoperative outcomes and return to regularphysical and sports activities at average of 6 years after patellar stabilization with medial patellofemoral ligament (MPFL) reconstruction.

Methods

Between November 2006 and January 2010, 31 isolated MPFL reconstructions in 29 patients with recurrent patellar dislocation were performed. Radiographs and magnetic resonance imaging were evaluated preoperatively. Knee function was assessed pre- and postoperative using Kujala score and the patient satisfaction, according to the International Knee Documentation Committee (IKDC) score. Tegner activity score was used for the evaluation of sports activity level.

Results

The average follow-up was 6.4±1.2 years. All measured scores increased significantly at follow-up. The average Kujala score increased from 75±10 to 95±10, patient satisfaction according to IKDC score from 6.1±1.4 to 8.7±1.4 and Tegner activity score from 4.4±1.6 to 5.7±1.3. The Tegner activity score after surgery was significantly lower than the score before the patellar dislocation (6.7±1.3). There were no significant differences in Kujala postoperative score between women’s and men’s group (P=0.25). There was no significant correlation between body mass index and Kujala score postoperatively (P=0.11) and between age at surgery and Kujala scores postoperatively (P=0.56). Patients who were active in sports preoperatively had resumed sports activities in 88.5% after surgery, 69.6% of them returned to the same levels and 30.4% return to the lower levels.

Conclusion

Patellar stabilization with MPFL reconstruction is a safe and effective treatment method forall patients with patellofemoral instability and allows most patients to return to regular physical andsports activities after surgical intervention. Although sports activity level increased significantly aftersurgery, the same level of sports activity before the patellar dislocation has not been achieved.
Keywords: Medial patellofemoral ligament reconstruction; patellofemoral instability; return to regular physical activities; return to sports; redislocation; trochlear dysplasia