Clinical outcome and implant survival after knee TEP change to triathlon PS and TS systems

• Conditions: Z96.65; T84; Complications of internal orthopaedic prosthetic devices, implants and grafts

• Registration Number: DRKS00021478
• Lead Sponsor: Orthopädische Klinik der Medizinischen Hochschule Hannover im Diakovere Annastift

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2020-07-02
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Pending
• Sex: All
• Target Recruitment: 300

Inclusion Criteria

Male or female patients aged = 18 years
- Knee TEP change performed on Stryker Triathlon PS or Triathlon TS prostheses

Exclusion Criteria

- Another revision of the knee TEP with replacement of individual or all components

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The Primary outcome of this study is to examine implant survival and the revision rate after change operations (KTEP change to PS or TS systems). The different types of implants should be analyzed separately.

Secondary Outcome Measures

Name	Time	Method
As a secondary outcome, patient satisfaction and the subjective function of the joint are to be examined in a patient survey using questionnaires. On the other hand, the radiological recordings that have already been made are to be analyzed preoperatively and postoperatively as well as progressive recordings with regard to common radiological criteria of knee arthroplasty (loosening according to the Knee Society Roentgenographic Evaluation and Scoring System - KSRESS, joint and implant position pre- and postoperatively with common axis angles).