Arthroscopic patellar reinsertion of the MPFL in acute patellar dislocations.
OBJECTIVE
The objective of this study was to evaluate the mid-term results of a new technique for the arthroscopic repair of MPFL after an acute patellar dislocation (APD).


METHODS
The series included 17 patients (11 men and 6 women) with a first episode of acute patellar dislocation; treated over a period of 6 years. Re-dislocation, subjective symptoms and functional limitations were evaluated at an average follow-up of 2.2 years (1-5.5). The patients were evaluated with the Lysholm and the Kujala scoring systems.


RESULTS
At follow-up, no re-dislocation was reported. Only one patient referred an episode of patellar instability, without a distinct dislocation. The postoperative median Lysholm score was 90 (72-100). The median Kujala score was 92 (75-100). Fourteen out of 17 patients were able to return to sports at the same level as before.


CONCLUSIONS
When the MPFL is avulsed from the patella, the proposed technique has the advantage of restoring tension of the ligament through reattachment at the patellar border with two trans-patellar sutures. The full-arthroscopic approach has the advantage of being less invasive and having a shorter recovery time.
Università Foro Italico Roma, Piazza L. De Bosis 5, 00194, Rome, Italy. pierpaolo.mariani@uniroma4.it
P P
PP
Mariani
L
L
Liguori
G
G
Cerullo
G
G
Iannella
L
L
Floris
D000293:Adolescent; D000328:Adult; D001182:Arthroscopy / Q000379:methods*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015601:Injury Severity Score; D007593:Joint Instability / Q000517:prevention & control; D008297:Male; D017888:Medial Collateral Ligament, Knee / Q000293:injuries / Q000601:surgery*; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D031222:Patellar Dislocation / Q000175:diagnosis / Q000601:surgery*; D017847:Patellar Ligament / Q000293:injuries / Q000601:surgery*; D057071:Patellofemoral Joint / Q000293:injuries / Q000601:surgery; D016059:Range of Motion, Articular / Q000502:physiology; D020127:Recovery of Function; D012092:Replantation; D012189:Retrospective Studies; D018570:Risk Assessment; D016896:Treatment Outcome; D055815:Young Adult