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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

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 neck...
Knee Joint01:23

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 group...

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Related Experiment Video

Updated: Jul 13, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
09:01

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Published on: January 24, 2018

Patellofemoral arthroplasty.

Jess H Lonner1

  • 1Knee Replacement Surgery, Booth Bartolozzi Balderston Orthopaedics, Pennsylvania Hospital, Philadelphia, PA 19107, USA.

The Journal of the American Academy of Orthopaedic Surgeons
|August 1, 2007
PubMed
Summary

Patellofemoral arthroplasty offers an intermediate solution for isolated knee arthritis. Newer designs improve outcomes by addressing issues like maltracking and pain, but patient selection is key to avoid further degeneration.

Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Knee joint biomechanics

Background:

  • Isolated arthritis of the knee's anterior compartment presents a treatment challenge.
  • Patellofemoral arthroplasty serves as an intermediate surgical option for specific patient groups.
  • Previous implant designs were associated with complications such as maltracking and anterior knee pain.

Purpose of the Study:

  • To evaluate the efficacy of patellofemoral arthroplasty as an intermediate treatment for isolated anterior knee compartment arthritis.
  • To identify factors influencing successful outcomes in patellofemoral arthroplasty.
  • To assess the role of newer prosthesis designs in mitigating patellofemoral dysfunction.

Main Methods:

  • Review of existing literature on patellofemoral arthroplasty outcomes.

Related Experiment Videos

Last Updated: Jul 13, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
09:01

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Published on: January 24, 2018

  • Analysis of implant design features and surgical alignment techniques.
  • Evaluation of patient selection criteria, particularly regarding tibiofemoral joint health.

    • Main Results:

    • Optimized results depend on sound implant geometry, proper prosthesis alignment, and balanced soft tissues.
    • Newer prosthesis designs demonstrate potential in reducing patellofemoral dysfunction.
    • Progressive tibiofemoral cartilage degeneration remains a concern, occurring in approximately 25% of patients.

    Conclusions:

    • Patellofemoral arthroplasty is a viable intermediate treatment for select patients with isolated patellofemoral arthritis.
    • Careful patient selection, excluding those with tibiofemoral chondromalacia, is crucial for long-term success.
    • Advancements in implant design offer improved outcomes and reduced complications.