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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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Knee dislocation with concomitant patellofemoral dislocation: A systematic review.

Jonathan McKeeman¹, Ryan Lee¹, Tyler Smith¹

¹Department of Orthopaedic Surgery, St. Luke's University Health Network, 801 Ostrum St., Bethlehem, PA, 18015, USA.

Journal of Orthopaedics

|November 6, 2024

Summary

This summary is machine-generated.

Knee dislocations with patellar dislocations lack a standard treatment. This review suggests treating the knee dislocation first, then assessing risk factors for medial patellofemoral ligament (MPFL) repair or reconstruction.

Keywords:

Knee dislocation Multi-ligamentous knee injury Patellar dislocation

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Area of Science:

Orthopedic surgery
Traumatology
Sports medicine

Background:

Knee dislocations with associated patellar dislocations are rare injuries.
There is no established consensus or standard of care for managing these complex injuries.
This systematic review aims to consolidate current treatment approaches and propose a management algorithm.

Purpose of the Study:

To systematically review the existing literature on knee dislocations with concomitant patellar dislocations.
To provide an overview of current treatment strategies for this injury pattern.
To propose a preferred treatment algorithm for clinicians.

Main Methods:

A systematic literature review was conducted following PRISMA guidelines.
Searches were performed in PubMed, MEDLINE, and Cochrane databases in July 2024.
Studies involving human patients with knee dislocation and patellar dislocation were included.

Main Results:

The search identified 288 titles; six full-text articles were ultimately included.
Three studies reported on acute knee dislocations with patellar dislocations, and three on chronic cases.
Surgical intervention for patellar instability was consistently reported across all included studies.

Conclusions:

Knee dislocations with associated patellar dislocations require careful management.
Standard treatment for knee dislocation should be applied initially.
Subsequent assessment of risk factors guides decisions regarding medial patellofemoral ligament (MPFL) repair or reconstruction.