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Tytuł pozycji:

Are powder-technology-built stems safe? A midterm follow-up registry study.

Tytuł:
Are powder-technology-built stems safe? A midterm follow-up registry study.
Autorzy:
Pardo F; Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, Bologna, 40136, Italy. .
Bordini B; Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy.
Castagnini F; Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, Bologna, 40136, Italy.
Giardina F; Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, Bologna, 40136, Italy.
Faldini C; Clinica Ortopedica e Traumatologica I, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, Bologna, 40136, Italy.; DIBINEM, University of Bologna, Bologna, Italy.
Traina F; Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, Bologna, 40136, Italy.; DIBINEM, University of Bologna, Bologna, Italy.; University of Messina, Messina, Italy.
Źródło:
Journal of materials science. Materials in medicine [J Mater Sci Mater Med] 2021 Jan 20; Vol. 32 (1), pp. 10. Date of Electronic Publication: 2021 Jan 20.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Publication: <2008->: Norwell, MA : Springer
Original Publication: London : Chapman and Hall, c1990-
MeSH Terms:
Powders*
Arthroplasty/*methods
Bone Substitutes/*chemistry
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Femur/surgery ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Orthopedics ; Patient Safety ; Porosity ; Prosthesis Design ; Prosthesis Failure ; Radiography ; Registries ; Reoperation/methods ; Stress, Mechanical ; Treatment Outcome ; Young Adult
References:
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Clin Orthop Relat Res. 2017 Feb;475(2):375-383. (PMID: 27417852)
J Bone Joint Surg Am. 2014 Dec 17;96 Suppl 1:65-72. (PMID: 25520421)
Medicine (Baltimore). 2018 Sep;97(39):e12560. (PMID: 30278556)
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Med Princ Pract. 2019;28(6):559-565. (PMID: 31079112)
J Arthroplasty. 2018 Jun;33(6):1794-1799. (PMID: 29395723)
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Substance Nomenclature:
0 (Bone Substitutes)
0 (Powders)
Entry Date(s):
Date Created: 20210120 Date Completed: 20210913 Latest Revision: 20210913
Update Code:
20240105
PubMed Central ID:
PMC7817598
DOI:
10.1007/s10856-020-06481-8
PMID:
33471238
Czasopismo naukowe
Background: Powder technology was developed to bring together the mechanical features and high porosity of titanium. However, the high porosity may theoretically compromise mechanical resistance. Literature is deficient about the use and safety profile of cementless femoral implants built using additive manufacturing (in particular electron beam melting technology, EBM). The purpose of this study was to evaluate the survival rates and the reason for revisions (especially implant breakage) of the first two EBM-built stems at a mid-term follow-up, using a joint arthroplasty registry.
Methods: The registry of Prosthetic Orthopedic Implant (RIPO) was investigated about cementless stems implanted from 2010 to 2017. Stems built with EBM technology (Parva and Pulchra stems; Adler Ortho, Milan, Italy) were compared to all the other cementless stems implanted during the same period, acting as control group. The survival rates and reasons for revision were assessed.
Results: No stem breakage occurred. At 5-year follow-up, the survival rates of the two cohorts were not statistically different (96.8% EBM stems, 98.0% standard cementless stems; p > 0.05). In the EBM stems, aseptic loosening occurred in 1.7% of the cases at the latest follow-up.
Conclusions: This large cohort showed that mechanical resistance is not a concern in EBM stems at mid-term follow-up. However, larger populations and longer follow-ups are needed to further validate these results.

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