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Related Experiment Video

Updated: Sep 12, 2025

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum TOLF Using Ultrasonic and Conventional Osteotomes

Laminectomy for the Removal of Thoracic Ossification of the Ligamentum Flavum TOLF Using Ultrasonic and Conventional Osteotomes

Published on: April 21, 2023

Ligament reconstruction combined with osteotomy: Case report.

Yaomin Wang¹, Heng Cao, Xinlong Chen

¹Department of Bone Joint, Binzhou Medical University Hospital, Binzhou, China.

|August 5, 2025

Summary

This case study highlights a rare simultaneous anterior cruciate ligament (ACL) and medial patellofemoral ligament (MPFL) reconstruction in a patient with congenital knee valgus deformity. Successful surgical management led to pain relief and functional recovery.

Keywords:

anterior cruciate ligament distal femoral osteotomy graft fixation medial patellar retinaculum reconstruction

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Area of Science:

Orthopedic Surgery
Sports Medicine
Biomechanical Engineering

Background:

Congenital valgus knee deformity can predispose individuals to complex knee injuries.
Simultaneous anterior cruciate ligament (ACL) and medial patellofemoral ligament (MPFL) tears combined with valgus deformity are exceptionally uncommon.

Purpose of the Study:

To describe the successful surgical management of a rare case involving simultaneous ACL and MPFL rupture in a patient with congenital knee valgus deformity.
To emphasize the importance of addressing patellar stability and valgus alignment in ACL reconstruction.

Main Methods:

A 30-year-old female with congenital valgus knee underwent magnetic resonance imaging (MRI) diagnosing ACL and MPFL injuries.
The patient received simultaneous reconstruction of the ACL and MPFL, coupled with a distal femoral osteotomy.

Main Results:

The patient experienced significant postoperative pain reduction and achieved knee stability.
Observed functional recovery and positive outcomes following the combined surgical intervention.

Conclusions:

Inadequate management of patellar stability post-MPFL rupture increases ACL graft failure risk.
Valgus deformity exacerbates ACL graft complications, including cartilage degeneration and meniscal injury.
Accurate imaging and surgical planning are crucial for successful outcomes in complex knee reconstructions.