Prospective clinical and radiologic comparison between the hybrid fixation technique vs. cones in the Legion-RK revision total knee arthroplasty

Prospective clinical and radiologic comparison between the hybrid fixation technique vs. cones in the Legion-RK revision total knee arthroplasty - SN-Cones

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00034468

Enrollment

Registered

2024-06-13

Start date

2023-09-11

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

OPS: 5-823 - Revision, replacement and removal of an endoprosthesis on the knee joint

Interventions

Group 1: Implantation of a revision total endoprosthesis using hybrid fixation technique Group 2: Implantation of a revision total knee arthroplasty using cones in the Legion-RK revision total knee ar

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Written informed consent to participate in this study - Indication for replacement or reimplantation of a revision total knee arthroplasty

Exclusion criteria

Exclusion criteria: - Steroid intake over 1 year > 7.5mg/d - Osteoporosis diagnosed by means of apparatus and treated with medication - Rheumatoid arthritis - Patients unable to give consent - Pregnancy and breastfeeding

Design outcomes

Primary

Measure	Time frame
Zone-based bone mass density (BMD) (g/qcm) after 12 months follow-up	—

Secondary

Measure	Time frame
- Comparing the KSS (Knee Society Score) and WOMAC scores (Western Ontario and McMaster Universities Osteoarthritis Index) post-OP, after 3 and 12 months - Comparison of the leg axes in the frontal plane (alignment), stem migration/stem dislocation and radioluscent lines (post-OP and after 12 months)	—

Countries

Germany

Contacts

Public ContactAlexander Zeh

Universitätsklinikum Halle, Department für Orthopädie, Unfall- und Wiederherstellungschirurgie

alexander.zeh@uk-halle.de+49 345 557 1329

Outcome results

None listed

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