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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

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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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Updated: Jan 7, 2026

The Lower Body Positive Pressure Treadmill for Knee Osteoarthritis Rehabilitation
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Persistent Patellar Dislocation Following Correction of a Lower Limb Length Discrepancy: A Case Report.

Hugo Santos1, Francisco Guerra Pinto2, Rui Domingos2

  • 1Orthopaedics and Trauma, Hospital Ortopédico de Sant'Ana, Lisbon, PRT.

Cureus
|December 29, 2025
PubMed
Summary
This summary is machine-generated.

Femoral lengthening for limb discrepancy can lead to patellar instability. A young patient successfully underwent complex surgery for chronic patellar dislocation, demonstrating the need for long-term monitoring after limb lengthening procedures.

Area of Science:

  • Orthopedic Surgery
  • Biomechanical Engineering
  • Pediatric Orthopedics

Background:

Keywords:
case reportfemoropatellar instabilitylengtheninglower limb length discrepancytrochleoplasty

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  • Lower limb length discrepancy is common, with distraction osteogenesis offering correction without height reduction.
  • Long-term biomechanical consequences, such as patellar instability, may arise after femoral lengthening.
  • Chronic patellar instability and dislocation can occur years after limb lengthening procedures.