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Related Concept Videos

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...
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...

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Related Experiment Video

Updated: Jun 1, 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

When do total knee replacements fail?

Cronan Kerin1, A Malhotra, R Spencer-Jones

  • 1Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Gobowen, Shropshire, UK. cronankerin@doctors.org.uk

Journal of Long-Term Effects of Medical Implants
|June 14, 2011
PubMed
Summary
This summary is machine-generated.

Total knee arthroplasty (TKA) patients asymptomatic after one year can defer follow-up until eight years post-surgery. This surveillance strategy for TKA aims to optimize patient care and resource allocation, based on long-term outcome data.

Related Experiment Videos

Last Updated: Jun 1, 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

Area of Science:

  • Orthopedic Surgery
  • Biostatistics
  • Medical Device Performance

Background:

  • Evidence-based guidelines exist for cemented total hip arthroplasty follow-up.
  • No established guidelines currently exist for total knee arthroplasty (TKA) surveillance.
  • This study reviews outcomes for TKA patients from 1998-1999.

Purpose of the Study:

  • To establish evidence-based follow-up guidelines for total knee arthroplasty.
  • To analyze long-term outcomes and failure rates in TKA patients.
  • To determine optimal surveillance intervals for TKA.

Main Methods:

  • Retrospective review of 296 primary total knee arthroplasties.
  • Data collection included patient demographics, radiological loosening, and revision surgery dates.
  • Kaplan-Meier survival and hazard analyses were performed using R software.

Main Results:

  • Radiological loosening showed a gradual increase, peaking at 8 years, with a 10-year survival rate of 85.8%.
  • Revision surgery for any cause also increased up to 8 years, with a 10-year survival rate of 91.5%.
  • Failure rates demonstrated a consistent trend up to the 8-year mark.

Conclusions:

  • Asymptomatic total knee arthroplasty patients can be monitored every 8 years post-initial recovery.
  • This follow-up schedule is proposed for TKA patients after the first postoperative year.
  • The findings support a less frequent, targeted surveillance approach for TKA.