Fabio Mancino1, Vincenzo Di Matteo1, Fabrizio Mocini1, Silvia Pietramala1, Alessandro Singlitico1, Andrea De Fazio1, Vincenzo La Vergata2, Giorgio Gasparini3, Giulio Maccauro1, Ivan De Martino2. 1. Division of Orthopaedics and Traumatology, Department of Aging, Neurological, Orthopaedic and Head-Neck studies, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy. 2. Division of Orthopaedics and Traumatology, Department of Aging, Neurological, Orthopaedic and Head-Neck studies, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy. 3. Orthopedic Surgery Division, Department of Medical and Surgical Sciences, University of Catanzaro Magna Græcia, Viale Europa, Germaneto, 88100 Catanzaro, CZ, Italy.
Abstract
Background: Several studies have evaluated the outcomes of tantalum cones in revision knee arthroplasty with moderate-to-severe metaphyseal bone defects. However, recent innovations have led to the development of 3-D printed titanium cones to better adapt to host bone, there remains no consensus on their overall performance. Objective: We therefore performed a systematic review of the literature to examine short-term survivorship and complication rates of their usage in revision TKAs. Methods: A systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A comprehensive search of PubMed, MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews was conducted for English articles using various combinations of keywords. Results: In all, 7 articles met the inclusion criteria. A total of 687 cones were implanted in 557 revision TKAs. The all-cause revision-free survivorship of the implants was 95.3% (26 revisions), and of the cones was 95.5% (31 cones revised) at mean 24 months follow-up. The cones revision-free survivorship from aseptic loosening was 99.7%. The overall complication rate was 19.7% with infection as the most common complications observed and the most frequent reason for revision with an incidence of 10.4% and 4.1%, respectively. Overall, functional outcomes improved as documented by postoperative knee scores. Conclusion: 3-D printed metal cones represent a reliable option in metaphyseal bone defects reconstruction that provides high fixation, good short-term survivorship, and complications rates in line with similar devices. In addition, they are associated with lower intraoperative complications, and higher survivorship from aseptic loosening.
Background: Several studies have evaluated the outcomes of tantalum cones in revision knee arthroplasty with moderate-to-severe metaphyseal bone defects. However, recent innovations have led to the development of 3-D printed titanium cones to better adapt to host bone, there remains no consensus on their overall performance. Objective: We therefore performed a systematic review of the literature to examine short-term survivorship and complication rates of their usage in revision TKAs. Methods: A systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A comprehensive search of PubMed, MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews was conducted for English articles using various combinations of keywords. Results: In all, 7 articles met the inclusion criteria. A total of 687 cones were implanted in 557 revision TKAs. The all-cause revision-free survivorship of the implants was 95.3% (26 revisions), and of the cones was 95.5% (31 cones revised) at mean 24 months follow-up. The cones revision-free survivorship from aseptic loosening was 99.7%. The overall complication rate was 19.7% with infection as the most common complications observed and the most frequent reason for revision with an incidence of 10.4% and 4.1%, respectively. Overall, functional outcomes improved as documented by postoperative knee scores. Conclusion: 3-D printed metal cones represent a reliable option in metaphyseal bone defects reconstruction that provides high fixation, good short-term survivorship, and complications rates in line with similar devices. In addition, they are associated with lower intraoperative complications, and higher survivorship from aseptic loosening.
Entities:
Keywords:
3D-printed; bone reconstruction; knee revision arthroplasty; metal cones; metaphyseal bone defect
Authors: Brian P Chalmers; Nicholas M Desy; Mark W Pagnano; Robert T Trousdale; Michael J Taunton Journal: J Arthroplasty Date: 2016-12-14 Impact factor: 4.757
Authors: Ethan A Remily; Iciar M Dávila Castrodad; Nequesha S Mohamed; Wayne A Wilkie; Margaret N Kelemen; Ronald E Delanois Journal: Orthopedics Date: 2020-12-07 Impact factor: 1.390