Defect augmentation of the metaphysis in the knee revision arthroplasty using Cones: case series

• Conditions: T84.0; Z96; Mechanical complication of internal joint prosthesis; Presence of other functional implants

• Registration Number: DRKS00014257
• Lead Sponsor: Orthopädische Klinik der Medizinischen Hochschule im Diakovere Annastift

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2020-03-30
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Recruiting withdrawn before recruiting started
• Sex: All
• Target Recruitment: 16

Inclusion Criteria

male and female patients aged 18 and over at the time of enrollment
- Use of a metaphyseal cone for revision knee arthroplasty

Exclusion Criteria

- New revision in the sense of removing or replacing the Cone-fixed prosthesis

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Radiological implant survival<br><br>Patients are invited to a follow-up appointment as part of the study. Previously, patients had to undergo follow-up examinations (3 months, 6 months, 1 year postoperatively) according to the orthopedic routine after complex knee surgery. The short clinical-radiological follow-up periods within the first years result from the evaluation of the osteointegration of cementless implants in order to be able to determine early loosening.<br>On the day of the follow-up, a routine x-ray check is made in two levels to check the current prosthesis position and bone integrity.

Secondary Outcome Measures

Name	Time	Method
Description of clinical outcomes and patient satisfaction<br><br>Patients are invited to a follow-up appointment as part of the study. In this follow-up examination there is also a clinical examination with determination of the range of motion, control of the peripheral blood circulation, motor skills and sensitivity and the examination of the band stability. Furthermore, the clinical outcome at the time of the follow-up examination is analyzed on the basis of established scores (WOMAC, knee society score, VAS regarding pain, UCLA score for sports activity).