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

Defect augmentation of the metaphysis in the knee revision arthroplasty using Cones: case series - Follow-up examination Cones

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00014257

Enrollment

Registered

2020-03-30

Start date

2018-05-01

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

T84.0 Z96

Interventions

Group 1: Patients who received a metaphyseal cone during revision knee arthroplasty surgery are invited to participate in the study. X-rays are taken as part of the follow-up examination according to

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

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

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

Design outcomes

Primary

Measure	Time frame
Radiological implant survival 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. 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.	—

Measure

Time frame

Radiological implant survival 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. 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

Measure	Time frame
Description of clinical outcomes and patient satisfaction 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).	—

Measure

Time frame

Description of clinical outcomes and patient satisfaction 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).

—

Countries

Germany

Contacts

Public ContactYvonne Noll

Orthopädische Klinik der Medizinischen Hochschule Hannover im Diakovere Annastift, Leitung Klinisches Studienmanagement

yvonne.noll@diakovere.de0511-5354-649

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026