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Mazzucchi E, La Rocca G, Perna A, Pignotti F, Galieri G, De Santis V, Rinaldi P, Tamburrelli FC, Sabatino G. Single-Level Anterior Cervical Discectomy and Interbody Fusion: A Comparison between Porous Tantalum and Polyetheretherketone Cages. J Pers Med 2022; 12:jpm12060986. [PMID: 35743770 PMCID: PMC9224653 DOI: 10.3390/jpm12060986] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/10/2022] [Accepted: 06/14/2022] [Indexed: 11/20/2022] Open
Abstract
Background: Anterior cervical discectomy and interbody fusion (ACDF) may be performed with different kinds of stand-alone cages. Tantalum and polyetheretherketone (PEEK) are two of the most commonly used materials in this procedure. Few comparisons between different stand-alone implants for ACDF have been reported in the literature. Methods: We performed a comparison between patients who underwent ACDF with either a porous tantalum or a PEEK stand-alone cage, in two spine surgery units for single-level disc herniation. Clinical outcome [Neck Disability Index (NDI), Visual Analog Scale (VAS) for pain, Short Form-36 (SF-36)] and radiological outcome (lordosis, fusion and subsidence) were measured before surgery and at least one year after surgery in both groups. Results: Thirty-eight patients underwent ACDF with a porous tantalum cage, and thirty-one with a PEEK cage. The improvement of NDI and SF-36 was significantly superior in the PEEK group (p = 0.002 and p = 0.049 respectively). Moreover, the variation of the Cobb angle for the cervical spine was significantly higher in the PEEK group (p < 0.001). Conclusions: In a retrospective analysis of two groups of patients with at least one year of follow-up, a stand-alone PEEK cage showed superior clinical results, with improved cervical lordosis, compared to a stand-alone porous tantalum cage. Further studies are needed to confirm these data.
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Affiliation(s)
- Edoardo Mazzucchi
- Department of Neurosurgery, Mater Olbia Hospital, 07026 Olbia, Italy; (E.M.); (F.P.); (G.G.); (G.S.)
- Institute of Neurosurgery, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy
| | - Giuseppe La Rocca
- Department of Neurosurgery, Mater Olbia Hospital, 07026 Olbia, Italy; (E.M.); (F.P.); (G.G.); (G.S.)
- Institute of Neurosurgery, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy
- Correspondence:
| | - Andrea Perna
- Department of Orthopedics, Mater Olbia Hospital, 07026 Olbia, Italy; (A.P.); (V.D.S.)
- Institute of Orthopedics, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy;
| | - Fabrizio Pignotti
- Department of Neurosurgery, Mater Olbia Hospital, 07026 Olbia, Italy; (E.M.); (F.P.); (G.G.); (G.S.)
- Institute of Neurosurgery, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy
| | - Gianluca Galieri
- Department of Neurosurgery, Mater Olbia Hospital, 07026 Olbia, Italy; (E.M.); (F.P.); (G.G.); (G.S.)
- Institute of Neurosurgery, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy
| | - Vincenzo De Santis
- Department of Orthopedics, Mater Olbia Hospital, 07026 Olbia, Italy; (A.P.); (V.D.S.)
- Institute of Orthopedics, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy;
| | | | - Francesco Ciro Tamburrelli
- Institute of Orthopedics, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy;
- Unit of Spine Surgery, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy
| | - Giovanni Sabatino
- Department of Neurosurgery, Mater Olbia Hospital, 07026 Olbia, Italy; (E.M.); (F.P.); (G.G.); (G.S.)
- Institute of Neurosurgery, IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Catholic University, 00168 Rome, Italy
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Design of Personalized Cervical Fixation Orthosis Based on 3D Printing Technology. Appl Bionics Biomech 2022; 2022:8243128. [PMID: 35535322 PMCID: PMC9078801 DOI: 10.1155/2022/8243128] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 11/17/2022] Open
Abstract
The movement of the cervical spine should be restricted throughout the rehabilitation phase after it has been injured. Cervical orthosis is commonly utilized in clinical settings to guarantee cervical spine stability. However, to date, the investigations are limited to patient-specific cervical fixation orthoses. This study provides a new idea for making personalized orthoses. The CT data of the patient's cervical spine were collected, then mimics were used for reconstructing the skin of the cervical spine, the Geomagic Studio was used for surface fitting, the Inspire Studio was used for structural topology optimization, redundant structures were removed, the resulting orthotics were postprocessed, and finally, it was printed with a 3D printer. No signs of pain or discomfort were observed during the wearing. The cervical spine range of motion in flexion, extension, lateral flexion, and rotation is all less than 8° after using the device. Low cost, quick manufacturing time, high precision, attractive appearance, lightweight structure, waterproof design, and practical customized orthotics for patients are all advantages of 3D printing technology in the field of orthopedics. Many possible benefits of using 3D printing to build new orthotics include unique design, stiffness, weight optimization, and improved biomechanical performance, comfort, and fit. Personalized orthotics may be designed and manufactured utilizing 3D printing technology.
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