2023 ISAKOS Biennial Congress ePoster
Arthroscopy-Controlled Medial Reefing And Lateral Release For Recurrent Patellar Dislocation: Clinical, Radiologic Outcomes And Complications
Kyung Wook Nha , Prof, Goyang City KOREA, REPUBLIC OF
Hyung Suh Kim, MD, Goyang City KOREA, REPUBLIC OF
Sang-Gyun Kim, MD, PhD, Seoul KOREA, REPUBLIC OF
Department of Orthopedic Surgery, Inje University, Ilsan Paik Hospital, Goyang-si, Gyeonggi-do, KOREA, REPUBLIC OF
FDA Status Not Applicable
Summary
Arthroscopy-controlled medial reefing and lateral release significantly improved the clinical and radiologic outcomes of the patients with recurrent patellar dislocation at a mean follow-up period of 7 years
ePosters will be available shortly before Congress
Abstract
Background
Few studies have reported the clinical outcomes of the medial reefing procedure and lateral release
with arthroscopic control of medial retinacular tension in patients with recurrent patellar dislocation. The purpose
of this study was to investigate the clinical, radiologic outcomes and complications of arthroscopy-controlled
medial reefing and lateral release.
Methods
Patients who underwent arthroscopy-controlled medial reefing and lateral release for recurrent patellar
dislocation between November 2007 and June 2017 were retrospectively evaluated. The clinical outcome (Kujala
score), radiologic outcome (congruence and patellar tilt angles), and complications were evaluated at final followup. The results were also compared with literature-reported outcomes of other surgical procedures for patellar dislocation.
Results
Twenty-five patients (mean age, 18.3 ± 4.8 years) were included in the study. The mean clinical follow-up
period was 7.0 ± 2.5 (range, 3.8–12.2) years. The mean Kujala score was significantly improved from 54.7 ± 14.0
(range, 37–86) preoperatively to 91.0 ± 7.6 (range, 63–99) at a mean follow-up period of 7 years (P < 0.001). The
radiologic results also significantly improved from 17.8° ± 5.9° to 6.8° ± 2.4° (P < 0.001) in the congruence angle and from 17.5° ± 8.2° to 5.6° ± 3.1° (P < 0.001) in the patella tilt angle at a mean follow-up period of 3.6 years. One patient developed a redislocation after a traumatic event, and two patients showed patellofemoral osteoarthritis progression.
Conclusions
Arthroscopy-controlled medial reefing and lateral release significantly improved the clinical and
radiologic outcomes of the patients with recurrent patellar dislocation at a mean follow-up period of 7 years. The results of this study are comparable with the literature-reported outcomes of other surgical procedures for patellar
dislocation.
Level of evidence: Level IV, retrospective therapeutic case series.
Keywords: Patellar dislocation, Arthroscopy-controlled medial reefing, Kujala score, Congruence angle, Patellar tilt angle, Complication