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Related Experiment Video

Updated: Jun 6, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

Published on: May 5, 2023

The Stanmore knee arthrodesis prosthesis.

William Bartlett¹, Sridhar Vijayan, Robin Pollock

¹London Sarcoma Unit, Royal National Orthopaedic Hospital, Stanmore, Middlesex, UK.

The Journal of Arthroplasty

|November 16, 2010

Summary

This summary is machine-generated.

Related Concept Videos

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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This study shows a custom knee arthrodesis prosthesis offers reliable fusion for complex cases, including failed knee replacements and bone loss. The custom prosthesis demonstrated good implant survivorship and functional outcomes in patients with significant bone deficits.

Area of Science:

Orthopedic Surgery
Biomaterials Engineering
Reconstructive Surgery

Background:

Knee arthrodesis is often a salvage procedure for failed total knee arthroplasty.
Conventional techniques have high complication rates and are unsuitable for extensive bone loss.
Custom prostheses may offer an alternative for complex knee reconstruction.

Purpose of the Study:

To evaluate the medium-term outcomes of a custom-made cemented knee arthrodesis prosthesis.
To assess implant survivorship and functional results in patients with significant bone deficits.

Main Methods:

A custom-made cemented knee arthrodesis prosthesis was implanted in 10 patients.
Procedures included 1- or 2-stage revisions for infection or tumor, and one primary procedure.

Related Experiment Videos

Last Updated: Jun 6, 2026

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

Published on: May 5, 2023

Average follow-up was 56.4 months, with an average bone deficit of 170 mm.

Main Results:

Implant survivorship was 90% at medium-term follow-up.
Patients with retained prostheses showed no signs of infection or loosening and achieved independent mobility.
One revision for fracture and one amputation for uncontrolled infection occurred.

Conclusions:

The custom-made cemented knee arthrodesis prosthesis provides reliable fusion in challenging cases.
This prosthesis is a viable option for patients with extensive bone loss or complex knee conditions.