Outcomes of Repair and Reconstruction of the Acute Posterolateral Corner Injuries of the Knee Combined with Cruciate Ligaments Injuries

Document Type : RESEARCH PAPER

Authors

1 Clinical Research Development Unit of Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 Bone Joint and Related Tissues Research Center, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 2 Bone Joint and Related Tissues Research Center, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran 3 Joint, Bone, Connective Tissue Rheumatology Research Center (JBCRC), Golestan University of Medical Sciences, Gorgan, Iran

4 2 Bone Joint and Related Tissues Research Center, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran 4 Department of Surgery and Orthopedics, Ardabil University of Medical Sciences, Ardabil, Iran

Abstract

Background: This study aimed to report objective and subjective knee stability scores for patients who underwent 
acute repair of avulsed posterolateral corner (PLC) structures or acute reconstruction of midsubstance tears combined 
with delayed reconstruction of cruciate ligaments. 
Methods: A total of 48 sport and vehicle accident traumatic patients were enrolled in a three-year follow-up study. The 
patients were investigated by clinical exams, subjective and objective International Knee Documentation Committee 
(IKDC) score, Tegner score, Lysholm score, and stress imaging. All scores were compared between the reconstruction 
and repair groups.
Results: Subjective IKDC scores were obtained at 83.3±9.6 and 88.3±4.39 for the reconstruction and repair groups, 
respectively. Only two patients in the reconstruction group had abnormal objective IKDC scores. Based on the Tegner 
score, 15 out of 18 patients in the repair group and 20 out of 24 patients in the reconstruction group regained their 
pre-injury functional level. Mean Lysholm scores for the reconstruction and repair groups were estimated at 83.4±8.2 
and 88.2±4.1, respectively. Mean lateral joint opening differences between two knees in the reconstruction and repair 
groups were -0.2±0.1mm and 0.5±0.1mm, respectively. There were no statistically significant differences between 
groups outcomes. We had no failure of treatment at the final follow-up.
Conclusion: Acute intervention within 3 weeks after PLC injuries combined with delayed cruciate ligaments 
reconstructions showed favorable outcomes. Both repair and reconstruction are effective when deciding based on the 
type of injury (i.e., avulsion and midsubstance tear).
Level of evidence: IV

Keywords

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The Archives of Bone and Joint Surgery
Volume 10, Issue 4
April 2022
Pages 339-346

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History

  • Receive Date: 02 November 2020
  • Accept Date: 29 May 2021
  • First Publish Date: 30 June 2021

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