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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...

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Related Experiment Video

Updated: Jun 12, 2026

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head

Published on: April 12, 2022

Computer navigated total knee arthroplasty: the learning curve.

Benjamin R K Smith¹, Angela H Deakin, Joe Baines

¹Department of Orthopaedics, Golden Jubilee National Hospital, Clydebank, Scotland.

Computer Aided Surgery : Official Journal of the International Society for Computer Aided Surgery

|May 27, 2010

Summary

This summary is machine-generated.

The learning curve for computer navigated total knee arthroplasty (TKA) is short, around 20 cases. Beginners achieve expert-level alignment and patient outcomes from the start, with operative times improving quickly.

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Published on: September 7, 2022

Area of Science:

Orthopedic Surgery
Medical Technology

Background:

The learning curve for computer navigated total knee arthroplasty (TKA) is not well defined.
Navigated TKA offers potential benefits but requires surgeon proficiency.

Purpose of the Study:

To define the learning curve for computer navigated TKA.
To compare outcomes between a novice and an expert surgeon using navigated TKA.

Main Methods:

Prospective data collection on a consultant surgeon's first 50 navigated TKAs.
Comparison with 50 consecutive navigated TKA cases from an expert surgeon.
Assessment of post-implant mechanical alignment, Oxford scores, mechanical axis, and range of motion at 6 weeks and 1 year.

Main Results:

Novice surgeons achieved expert-level coronal and sagittal plane alignment from the first case.
No significant differences in Oxford scores, mechanical axis, or range of motion at 6 weeks and 1 year between groups.
Operative time was longer for novices initially but normalized by the final 20 cases.

Conclusions:

The learning curve for navigated TKA is approximately 20 cases.
Beginner surgeons can achieve expert-level results with navigated TKA from the outset.
Navigated TKA allows for rapid skill acquisition and consistent patient outcomes.