Sporting activity is reduced following medial reefing performed for patellar dislocation : A retrospective case series of 144 patients with a minimum follow-up of 24 months

BMC Musculoskelet Disord. 2019 Jan 22;20(1):34. doi: 10.1186/s12891-019-2400-z.


Background: Patellar dislocation is common in young and active patients. The purpose of this study was to determine sporting activity following the medial reefing of patellar dislocation.

Methods: One hundred forty-four patients with objective patellar dislocation were treated between 2004 and 2013. Three groups were analyzed retrospectively with a minimum follow-up of 24 months: (1) primary dislocation that was treated with medial reefing without a recurrent dislocation until the day of follow-up (n = 74), (2) primary dislocation that was initially treated with medial reefing but with a recurrent dislocation until the day of follow-up (n = 44), and (3) medial reefing after failed conservative treatment (n = 26). Sporting activity was assessed using a widely-used sporting activity questionnaire and the Tegner score prior to the injury and at the follow-up (58.7 ± 22.6 months after the injury). Clinical outcomes were assessed using IKDC and Kujala score.

Results: The Kujala score was 94.7 ± 9.3 for Group 1, 84.1 ± 16.6 for Group 2 and 93.4 ± 9.7 for Group 3. IKDC at the time of follow-up was 97.2 ± 9.3 for Group 1, 86.1 ± 14.6 for Group 2 and 95.1 ± 11.1 for Group 3. 91.9% of Group 1 and 92.3% of Group 3 were active in sports prior to their injuries and at the time of the follow-up. In Group 2, sporting activity reduced from 81.8 to 75.0%. In all groups, a shift from high performance to recreational sports was found.

Conclusions: Despite good clinical results, sporting activity was reduced following patellar dislocation treated with medial reefing. Also, a shift from engagement in high- to low-impact sports among the participants was noted.

Keywords: Medial reefing; Patellar dislocation; Return to sports; Sporting activity.

MeSH terms

  • Adolescent
  • Adult
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Orthopedic Procedures / methods
  • Orthopedic Procedures / trends*
  • Patellar Dislocation / diagnosis*
  • Patellar Dislocation / surgery*
  • Retrospective Studies
  • Self Report
  • Sports / trends*
  • Time Factors
  • Treatment Outcome
  • Young Adult