Skip to main content
Top
Published in: Archives of Orthopaedic and Trauma Surgery 4/2021

01-04-2021 | Bone Defect | Orthopaedic Surgery

Preliminary clinical results of coated porous tibia cones in septic and aseptic revision knee arthroplasty

Authors: Malte Ohlmeier, Christian Lausmann, Matthias Wolff, Hussein Abdelaziz, Thorsten Gehrke, Mustafa Citak

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 4/2021

Login to get access

Abstract

Purpose

To analyze the first results of calcium-phosphate-coated porous tibia cones.

Methods

Patients treated with TrabecuLink®-CaP Cones were retrospectively recruited from January 2016 to December 2017. These custom-made cones were produced using titanium alloy Ti–6Al–4 V (Tilastan®) and using additive manufacturing with a special calcium-phosphate coating (HX®-coating). Clinical outcome was evaluated using Oxford Knee Score. For radiological evaluation of the implants, patients sent us outpatient taken radiographs. A minimum follow-up of one year was required. Lastly, we analyzed postoperative complications and revision rates.

Results

52 patients with revision knee arthroplasty (RKA) were recruited for final analysis, of whom, we had 17 septic RKAs (33%) and 35 aseptic cases of RKA (67%). The bone defects were grouped into 17 AORI Type 2A (32.7%), 14 Type 2B (26.9%) and 21 Type 3 (40.4%). After a mean follow-up of 22 months (13.2–34.8; SD = ± 10), we had 4 surgical revisions (7.7%), 2 septic and 2 aseptic cases. The mean Oxford Knee Score was 28.6 points (8–47; SD = ± 10). 22 of 28 radiographs (78.6%) showed regular positioning of the cones and TKAs at a mean follow-up of 16.8 months (13.2–34.8; SD = ± 6). Three patients (10.7%) showed slight radiolucencies in the bone–cement interfaces and 3 patients (10.7%) had beginning heterotopic ossifications.

Conclusions

This study shows the initial clinical results of calcium-phosphate-coated tibia cones showing a good functional outcome. Further research should focus on long-term clinical and radiological follow-up.
Literature
3.
go back to reference Levine B, Sporer S, Della Valle CJ et al (2007) Porous tantalum in reconstructive surgery of the knee: a review. J Knee Surg 20(3):185–194CrossRef Levine B, Sporer S, Della Valle CJ et al (2007) Porous tantalum in reconstructive surgery of the knee: a review. J Knee Surg 20(3):185–194CrossRef
6.
go back to reference Engh GA, Ammeen DJ (1999) Bone loss with revision total knee arthroplasty: Defect classification and alternatives for reconstruction. Instr Course Lect 48:167–175PubMed Engh GA, Ammeen DJ (1999) Bone loss with revision total knee arthroplasty: Defect classification and alternatives for reconstruction. Instr Course Lect 48:167–175PubMed
9.
go back to reference Beckmann NA, Mueller S, Gondan M et al (2015) Treatment of severe bone defects during revision total knee arthroplasty with structural allografts and porous metal cones-a systematic review, vol 2, United States Beckmann NA, Mueller S, Gondan M et al (2015) Treatment of severe bone defects during revision total knee arthroplasty with structural allografts and porous metal cones-a systematic review, vol 2, United States
Metadata
Title
Preliminary clinical results of coated porous tibia cones in septic and aseptic revision knee arthroplasty
Authors
Malte Ohlmeier
Christian Lausmann
Matthias Wolff
Hussein Abdelaziz
Thorsten Gehrke
Mustafa Citak
Publication date
01-04-2021
Publisher
Springer Berlin Heidelberg
Keyword
Bone Defect
Published in
Archives of Orthopaedic and Trauma Surgery / Issue 4/2021
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI
https://doi.org/10.1007/s00402-020-03434-2

Other articles of this Issue 4/2021

Archives of Orthopaedic and Trauma Surgery 4/2021 Go to the issue