MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES

Background: The purpose of this study is to report the medium-term clinical and radiographic results of Paprosky type II and III acetabular bone defects revised with a cementless anatomical cage and cemented lipped acetabular cup. Methods: We retrospectively analyzed 58 patients who underwent revis...

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Main Authors: Hristo Petrichev, Spas Radev, Valentin Petrov, Petko Ganev, Valeri Stavrev
Format: Article
Language:English
Published: Peytchinski Publishing 2025-08-01
Series:Journal of IMAB
Subjects:
Online Access:https://www.journal-imab-bg.org/issues-2025/issue3/2025vol31-issue3_6386-6393.pdf
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author Hristo Petrichev
Spas Radev
Valentin Petrov
Petko Ganev
Valeri Stavrev
author_facet Hristo Petrichev
Spas Radev
Valentin Petrov
Petko Ganev
Valeri Stavrev
author_sort Hristo Petrichev
collection DOAJ
description Background: The purpose of this study is to report the medium-term clinical and radiographic results of Paprosky type II and III acetabular bone defects revised with a cementless anatomical cage and cemented lipped acetabular cup. Methods: We retrospectively analyzed 58 patients who underwent revision hip arthroplasty with cementless anatomical cages and lipped cemented acetabular cups between April 2009 and December 2013. We registered the following bone defects: Paprosky type IIA - 12 patients, Paprosky type IIB – 15 patients, 14 patients were with Paprosky type IIIA - 14 patients and with Paprosky type IIIB – 17 patients (pelvic discontinuity). Clinical assessment included Harris Hip Score (HHS) and Short Form-12 (SF-12). The radiographic assessment included the center of rotation, cage migration, and osteointegration of the implant. Results: We followed up the patients included in our series with a mean follow-up of 89.5 months (range 38–141), The Harris Hip Score (HHS) improved from 29.5 (12–41) points preoperatively to 87.7 (57–96) points during the last follow-up, and the Short Form – 12 (SF–12) also increased. In 1 patient we did revision due to cage loosening and broken screw 57 months after surgery. In 2 patients we registered non-progressive radiolucency in the AP and Lateral radiographs without any clinical complaints. Conclusion: The cementless anatomical cage combined with a cemented lipped acetabular cup achieves a good result with a high osteointegration rate in Paprosky type II and III acetabular bone defects.
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spelling doaj-art-04599df8bd334f5caa15cf2d1f15a7d62025-08-21T04:31:44ZengPeytchinski PublishingJournal of IMAB1312-773X2025-08-013136386639310.5272/jimab.2025313.6386MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGESHristo Petrichev0https://orcid.org/0009-0008-4829-9757Spas Radev1https://orcid.org/0009-0009-6023-3491Valentin Petrov2https://orcid.org/0009-0008-7551-9102 Petko Ganev3https://orcid.org/0009-0008-0051-8316Valeri Stavrev4https://orcid.org/0009-0001-5797-7715Department of Orthopedics and Traumatology, Faculty of Medicine, Medical University Plovdiv, Bulgaria.Department of Orthopedics and Traumatology, Faculty of Medicine, Medical University Plovdiv, Bulgaria.Department of Orthopedics and Traumatology, Faculty of Medicine, Medical University Plovdiv, Bulgaria.Department of Orthopedics and Traumatology, Faculty of Medicine, Medical University Plovdiv, Bulgaria.Department of Orthopedics and Traumatology, Faculty of Medicine, Medical University Plovdiv, Bulgaria.Background: The purpose of this study is to report the medium-term clinical and radiographic results of Paprosky type II and III acetabular bone defects revised with a cementless anatomical cage and cemented lipped acetabular cup. Methods: We retrospectively analyzed 58 patients who underwent revision hip arthroplasty with cementless anatomical cages and lipped cemented acetabular cups between April 2009 and December 2013. We registered the following bone defects: Paprosky type IIA - 12 patients, Paprosky type IIB – 15 patients, 14 patients were with Paprosky type IIIA - 14 patients and with Paprosky type IIIB – 17 patients (pelvic discontinuity). Clinical assessment included Harris Hip Score (HHS) and Short Form-12 (SF-12). The radiographic assessment included the center of rotation, cage migration, and osteointegration of the implant. Results: We followed up the patients included in our series with a mean follow-up of 89.5 months (range 38–141), The Harris Hip Score (HHS) improved from 29.5 (12–41) points preoperatively to 87.7 (57–96) points during the last follow-up, and the Short Form – 12 (SF–12) also increased. In 1 patient we did revision due to cage loosening and broken screw 57 months after surgery. In 2 patients we registered non-progressive radiolucency in the AP and Lateral radiographs without any clinical complaints. Conclusion: The cementless anatomical cage combined with a cemented lipped acetabular cup achieves a good result with a high osteointegration rate in Paprosky type II and III acetabular bone defects.https://www.journal-imab-bg.org/issues-2025/issue3/2025vol31-issue3_6386-6393.pdfcementless acetabular cagerevision hip arthroplastyacetabular bone defects
spellingShingle Hristo Petrichev
Spas Radev
Valentin Petrov
Petko Ganev
Valeri Stavrev
MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES
Journal of IMAB
cementless acetabular cage
revision hip arthroplasty
acetabular bone defects
title MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES
title_full MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES
title_fullStr MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES
title_full_unstemmed MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES
title_short MEDIUM-TERM RESULTS OF THE USE OF CEMENTLESS, PLASMA-COATED WITH DISPERSED TITANIUM POWDER AND HYDROXYAPATITE, ANATOMICAL ACETABULAR CAGES
title_sort medium term results of the use of cementless plasma coated with dispersed titanium powder and hydroxyapatite anatomical acetabular cages
topic cementless acetabular cage
revision hip arthroplasty
acetabular bone defects
url https://www.journal-imab-bg.org/issues-2025/issue3/2025vol31-issue3_6386-6393.pdf
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