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Knee Joint

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...

Bones of the Lower Limb: Femur and Patella

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...

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Reconstructive surgery for patellofemoral joint incongruency.

M V Neumann¹, M Stalder², A J Schuster³

¹Department of Orthopaedic Surgery and Traumatology, University of Freiburg, Freiburg, Germany. mirjam.victoria.neumann@uniklinik-freiburg.de.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA

|November 1, 2014

Summary

This study shows that combining trochleaplasty with soft tissue balancing effectively repairs patellofemoral joint disorders, significantly improving patient outcomes and restoring joint anatomy. It

Keywords:

Knee Medial patellofemoral ligament reconstruction Patellar dislocation Patellofemoral instability Trochleaplasty

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Area of Science:

Orthopedic Surgery
Biomedical Engineering

Background:

Patellofemoral joint disorders often require surgical intervention.
Existing treatments may not fully address complex anatomical issues.
A combined surgical approach aims to restore patellofemoral joint mechanics comprehensively.

Purpose of the Study:

To evaluate the efficacy of a combined trochleaplasty and soft tissue-balancing technique for patellofemoral joint disorders.
To assess clinical outcomes and anatomical restoration in a heterogeneous patient cohort.

Main Methods:

Retrospective analysis of 46 consecutively treated knees.
Surgical algorithm included trochleaplasty, medial patellofemoral ligament reconstruction, and vastus medialis oblique muscle repair.
Median follow-up of 4.7 years.

Main Results:

No patellar redislocations occurred post-operatively.
Median Kujala score significantly improved from 62 to 88 (p < 0.001).
Radiological correction of trochlear dysplasia, patellar height, and trochlear depth was observed.

Conclusions:

Combined trochleaplasty and soft tissue balancing yields excellent clinical and radiological results for patellofemoral joint disorders.
Significant Kujala score improvement noted in patients with Dejour grades C and D dysplasia.
This joint-preserving method shows satisfying results, even in patients with pre-existing degenerative changes.