Through-tunnel reconstruction with Ligament Augmentation and Reconstruction System (LARS) for managing post-arthroplasty patellofemoral instability
2025

Using LARS for Patellofemoral Instability After Knee Surgery

Sample size: 1 publication Evidence: low

Author Information

Author(s): Chang Jung-Hsiu, Chen Chih-Hui, Li Yi-An

Primary Institution: Changhua Christian Hospital, Changhua, Taiwan

Hypothesis

Can the synthetic Ligament Augmentation and Reconstruction System (LARS) effectively manage post-arthroplasty patellofemoral instability?

Conclusion

The use of LARS for medial patellofemoral ligament reconstruction successfully stabilized the knee without donor site morbidity.

Supporting Evidence

  • The patient reported satisfactory knee stability after one year.
  • Using LARS avoids complications associated with autograft harvesting.
  • The approach could be particularly beneficial for elderly patients.

Takeaway

This study shows that a special synthetic ligament can help fix a knee problem after surgery without taking tissue from another part of the body.

Methodology

The patient underwent medial patellofemoral ligament reconstruction using a synthetic ligament and was followed for one year.

Limitations

This report is based on a single case, limiting the generalizability of the findings.

Participant Demographics

An 87-year-old man with no significant comorbidities.

Digital Object Identifier (DOI)

10.1186/s12891-024-08250-y

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