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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 group...

Ankle Joint

Ankle Joint

The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

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Related Experiment Video

Updated: Jun 13, 2026

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

The Use of Mixed Reality in Custom-Made Revision Hip Arthroplasty: A First Case Report

Published on: August 4, 2022

[Computer-assisted joint replacement surgery].

C Schnurr¹, U Münnich, P Eysel

¹LVR-Klinik für Orthopädie Viersen.

Versicherungsmedizin

|April 15, 2010

Summary

This summary is machine-generated.

Computer navigation significantly reduces outliers in hip and knee replacement surgeries, potentially improving outcomes. This technology also decreased blood loss in knee replacements, though long-term cost-effectiveness requires further study.

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Area of Science:

Orthopedic Surgery
Medical Technology

Context:

Improper alignment of hip and knee prostheses is a significant risk factor for early loosening and revision surgery.
Computer navigation has emerged as a tool to improve surgical precision in joint replacement.

Purpose:

To evaluate the effectiveness of computer navigation in reducing outliers in total knee arthroplasty (TKA) and hip resurfacing procedures.
To assess secondary outcomes such as blood loss and transfusion requirements in TKA using computer navigation.

Summary:

Analysis of 200 TKA (100 navigated, 100 conventional) and 60 hip resurfacing (30 navigated, 30 conventional) cases showed significantly fewer outliers with computer navigation in both procedures.
Computer navigation in TKA was associated with significantly reduced blood loss and need for blood transfusions.
Current data indicates an additional cost of 442 Euros per navigated operation without reimbursement in the existing healthcare system.

Impact:

Computer navigation can enhance surgical accuracy in joint replacement, potentially leading to better long-term implant survival.
Reduced blood loss in TKA may improve patient recovery and decrease hospital resource utilization.
Further long-term studies are needed to determine the overall economic viability and cost-effectiveness of computer navigation in joint replacement surgery.