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Petrone S, Ajello M, Marengo N, Bozzaro M, Pesaresi A, Allevi M, Fiumefreddo A, Denegri F, Cogoni M, Garnero A, Tartara F, Di Perna G, Armocida D, Pesce A, Frati A, Zenga F, Garbossa D, Cofano F. Clinical outcomes, MRI evaluation and predictive factors of indirect decompression with lateral transpsoas approach for lumbar interbody fusion: a multicenter experience. Front Surg 2023; 10:1158836. [PMID: 37077862 PMCID: PMC10106706 DOI: 10.3389/fsurg.2023.1158836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
IntroductionEvaluating the effects of indirect decompression obtained through lateral lumbar interbody fusion (LLIF) by clinical improvements and radiological parameters on MRI scans. Identifying predictors of better decompression and clinical outcome.Materials and methodsFrom 2016 to 2019, patients who underwent single- or double-level indirect decompression LLIF were consecutively reviewed. Radiological signs of indirect decompression were evaluated in preoperative and follow-up MRI studies and were subsequently correlated to clinical data, expressed as axial/radicular pain (VAS back/leg), index of disability (Oswestry Disability Index) and clinical severity of lumbar stenosis (Swiss Spinal Stenosis Questionnaire).Results72 patients were enrolled. The mean follow-up was 24 months. Differences in vertebral canal area (p < 0.001), height of the foramina (p < 0.001), thickness of the yellow ligament (p = 0.001) and anterior height of the interbody space (p = 0.02) were observed. Older age (p = 0.042), presence of spondylolisthesis (p = 0.042), presence of intra-articular facet effusion (p = 0.003) and posterior height of the implanted cage (p = 0.020) positively affected the increase of the canal area. Change in root canal area (p < 0.001), height of the implanted cage (p = 0.020) and younger age (p = 0.035) were predictive factors of root pain relief, while increased vertebral canal area (p = 0.020) and height of the interbody fusion cage (p = 0.023) positively affected the severity of clinical stenosis.ConclusionsLLIF indirect decompression showed both clinical and radiological improvements. Presence and degree of spondylolisthesis, presence of intra-articular facet effusion, age of the patient and height of the cage were predictive factors of major clinical improvements.
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Affiliation(s)
- Salvatore Petrone
- Spine Surgery Unit, Humanitas Gradenigo Turin, Turin, Italy
- Neurosurgery Unit, University of Turin Department of Neurosciences Rita Levi Montalcini, Turin, Italy
- Correspondence: Salvatore Petrone
| | - Marco Ajello
- Neurosurgery Unit, AOU Città della Salute e della Scienza, Turin, Italy
| | - Nicola Marengo
- Neurosurgery Unit, AOU Città della Salute e della Scienza, Turin, Italy
| | - Marco Bozzaro
- Spine Surgery Unit, Humanitas Gradenigo Turin, Turin, Italy
| | - Alessandro Pesaresi
- Neurosurgery Unit, University of Turin Department of Neurosciences Rita Levi Montalcini, Turin, Italy
| | - Mario Allevi
- Neurosurgery Unit, University of Turin Department of Neurosciences Rita Levi Montalcini, Turin, Italy
| | | | - Federica Denegri
- Neuroradiology Unit, AOU Città della Salute e della Scienza, Turin, Italy
| | - Maurizio Cogoni
- Neuroradiology Unit, AOU Città della Salute e della Scienza, Turin, Italy
| | - Andrea Garnero
- Neuroradiology Unit, AOU Città della Salute e della Scienza, Turin, Italy
| | - Fulvio Tartara
- Spine Surgery Unit, Humanitas Gradenigo Turin, Turin, Italy
| | - Giuseppe Di Perna
- Neurosurgery Unit, University of Turin Department of Neurosciences Rita Levi Montalcini, Turin, Italy
- Spine Surgery Unit, Casa di Cura Città di Bra, Bra, Italy
| | - Daniele Armocida
- Neurosurgery Unit, Department of Human Neuroscience, University Sapienza of Rome, Rome, Italy
| | | | - Alessandro Frati
- Neurosurgery Unit, Department of Human Neuroscience, University Sapienza of Rome, Rome, Italy
| | - Francesco Zenga
- Skull Base and Pituitary Surgery Unit, AOU Città Della Salute e Della Scienza, Turin, Italy
| | - Diego Garbossa
- Neurosurgery Unit, University of Turin Department of Neurosciences Rita Levi Montalcini, Turin, Italy
- Neurosurgery Unit, AOU Città della Salute e della Scienza, Turin, Italy
| | - Fabio Cofano
- Spine Surgery Unit, Humanitas Gradenigo Turin, Turin, Italy
- Neurosurgery Unit, University of Turin Department of Neurosciences Rita Levi Montalcini, Turin, Italy
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Di Perna G, Marengo N, Matsukawa K, Mahieu G, Baldassarre BM, Petrone S, De Marco R, Zeppa P, Ajello M, Fiumefreddo A, Zenga F, Garbossa D, Cofano F. Three-Dimensional Patient-Matched Template Guides Are Able to Increase Mean Diameter and Length and to Improve Accuracy of Cortical Bone Trajectory Screws: A 5-Year International Experience. World Neurosurg 2023; 170:e542-e549. [PMID: 36402304 DOI: 10.1016/j.wneu.2022.11.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To analyze whether significant differences exist between free-hand three-dimensional (3D) planning-guided cortical bone trajectory (CBT) screw placement and 3D-printed template-guided CBT screw positioning in terms of accuracy, size of screws, and potential complications. METHODS In this retrospective study, data of adult patients in whom CBT screws were placed for lumbar degenerative pathologies were extracted from a prospectively collected database and analyzed. Patients in whom screws were placed using free-hand 3D planning-guided technique were compared with patients in whom screws were positioned using customized 3D-printed templates. Size of the screws, accuracy, clinical outcomes, and complications were analyzed. RESULTS The study evaluated 251 patients (1004 screws). The free-hand 3D planning-guided group included 158 patients (632 screws), and the 3D-printed template-guided group included 93 patients (372 screws). The 3D-printed template-guided group involved screws of larger size from L3 to S1. Differences between the 2 groups in terms of accuracy parameters reached statistical significance (P ≤ 0.05). CONCLUSIONS With the use of 3D patient-matched template guides, mean diameter and length of CBT screws could be safely increased due to improved accuracy of screw placement. Based on previous evidence regarding CBT biomechanical properties, these advantages could allow increased fixation strength over traditional convergent pedicle screw trajectories. Further biomechanics studies are needed.
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Affiliation(s)
- Giuseppe Di Perna
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy; Spine Surgery Unit, "Casa di Cura Clinica Città di Bra", Bra, Italy
| | - Nicola Marengo
- Neurosurgery Unit, "Città della Salute e della Scienza" University Hospital, Turin, Italy
| | - Keitaro Matsukawa
- Department of Orthopaedic Surgery, National Hospital Organization, Murayama Medical Center, Musashimurayama, Tokyo, Japan
| | - Geert Mahieu
- Orthopaedic Surgery Department, ORTHOCA - AZ Monica Hospital, Antwerp, Belgium
| | | | | | - Raffaele De Marco
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy.
| | - Pietro Zeppa
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
| | - Marco Ajello
- Neurosurgery Unit, "Città della Salute e della Scienza" University Hospital, Turin, Italy
| | - Alessandro Fiumefreddo
- Neurosurgery Unit, "Città della Salute e della Scienza" University Hospital, Turin, Italy
| | - Francesco Zenga
- Neurosurgery Unit, "Città della Salute e della Scienza" University Hospital, Turin, Italy
| | - Diego Garbossa
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy; Neurosurgery Unit, "Città della Salute e della Scienza" University Hospital, Turin, Italy
| | - Fabio Cofano
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy; Spine Surgery Unit, Humanitas Gradenigo Hospital, Turin, Italy
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Marengo N, Di Perna G, Baldassarre BM, Cofano F, De Marco R, Zeppa P, Petrone S, Ajello M, Garbossa D, Zenga F. 3D-printed guides for cervical pedicle screw placement in primary spine tumor: Case report and technical description. Front Surg 2022; 9:1011846. [PMID: 36504577 PMCID: PMC9727165 DOI: 10.3389/fsurg.2022.1011846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/24/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction For spine surgeons, dealing with unstable cervical spine has been usually challenging, and this becomes more difficult when facing a primary craniovertebral junction tumor. Primary spine tumor surgery should always include column reconstruction in order to guarantee biomechanical stability of the spine, but surgeons should always be aware that instrumentations could create interferences with postoperative radiations. However, although carbon fiber instrumentations have started to be used in thoracolumbar oncology for few years, these options are still not available for cervical spine. In the reported case, the adopted strategy to obtain adequate column reconstruction was based on the idea of reducing the amount of titanium needed for posterior fixation and maximizing the distance between the radiation target and titanium rods. Case report and aim We present the case of a 53-year-old woman harboring a craniovertebral junction chordoma. A short occipito-C3 construct was selected. Specifically, titanium cervical pedicle screws were placed by using a new technology consisting in patient-tailored and customized 3D-printed guides. The aim of this case report is to determine the feasibility and safety of 3D-printed guides for cervical pedicle screw (CPS) positioning, even in the case of cervical spine tumor. Conclusion CPS could represent a good solution by providing strong biomechanical purchase and tailored 3D-printed guides could increase the safety and the accuracy of this challenging screw placement, even in oncological patients.
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Affiliation(s)
- Nicola Marengo
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy,Skull Base and Pituitary Surgery Unit, AOU Città Della Salute e Della Scienza, Turin, Italy
| | - Giuseppe Di Perna
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy,Spine Surgery Unit, Casa di Cura Clinica Città di Bra, Bra, Italy
| | - Bianca Maria Baldassarre
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy,Skull Base and Pituitary Surgery Unit, AOU Città Della Salute e Della Scienza, Turin, Italy
| | - Fabio Cofano
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy,Spine Surgery Unit, Humanitas Gradenigo Hospital, Turin, Italy
| | - Raffaele De Marco
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy,Skull Base and Pituitary Surgery Unit, AOU Città Della Salute e Della Scienza, Turin, Italy,Correspondence: Raffaele De Marco
| | - Pietro Zeppa
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy
| | - Salvatore Petrone
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy,Spine Surgery Unit, Humanitas Gradenigo Hospital, Turin, Italy
| | - Marco Ajello
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy
| | - Diego Garbossa
- Department of Neuroscience “Rita Levi Montalcini,” Neurosurgery Unit, University of Turin, Turin, Italy
| | - Francesco Zenga
- Skull Base and Pituitary Surgery Unit, AOU Città Della Salute e Della Scienza, Turin, Italy
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Cofano F, Perna GD, Bongiovanni D, Roscigno V, Baldassarre BM, Petrone S, Tartara F, Garbossa D, Bozzaro M. Obesity and Spine Surgery: A Qualitative Review About Outcomes and Complications. Is It Time for New Perspectives on Future Researches? Global Spine J 2022; 12:1214-1230. [PMID: 34128419 PMCID: PMC9210241 DOI: 10.1177/21925682211022313] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
STUDY DESIGN Literature review. OBJECTIVES An increasing number of obese patients requires operative care for degenerative spinal disorders. The aim of this review is to analyze the available evidence regarding the role of obesity on outcomes after spine surgery. Peri-operative complications and clinical results are evaluated for both cervical and lumbar surgery. Furthermore, the contribution of MIS techniques for lumbar surgery to play a role in reducing risks has been analyzed. METHODS Only articles published in English in the last 10 years were reviewed. Inclusion criteria of the references were based on the scope of this review, according to PRISMA guidelines. Moreover, only paper analyzing obesity-related complications in spine surgery have been selected and thoroughly reviewed. Each article was classified according to its rating of evidence using the Sacket Grading System. RESULTS A total number of 1636 articles were found, but only 130 of them were considered to be relevant after thorough evaluation and according to PRISMA checklist. The majority of the included papers were classified according to the Sacket Grading System as Level 2 (Retrospective Studies). CONCLUSION Evidence suggest that obese patients could benefit from spine surgery and outcomes be satisfactory. A higher rate of peri-operative complications is reported among obese patients, especially in posterior approaches. The use of MIS techniques plays a key role in order to reduce surgical risks. Further studies should evaluate the role of multidisciplinary counseling between spine surgeons, nutritionists and bariatric surgeons, in order to plan proper weight loss before elective spine surgery.
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Affiliation(s)
- Fabio Cofano
- Spine Surgery Unit, Humanitas Gradenigo Hospital, Turin, Italy,Department of Neuroscience “Rita Levi Montalcini,” Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Giuseppe Di Perna
- Department of Neuroscience “Rita Levi Montalcini,” Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Daria Bongiovanni
- Division of Endocrinology, Andrology and Metabolism, Humanitas Gradenigo Hospital, Turin, Italy
| | - Vittoria Roscigno
- Division of Endocrinology, Andrology and Metabolism, Humanitas Gradenigo Hospital, Turin, Italy
| | - Bianca Maria Baldassarre
- Department of Neuroscience “Rita Levi Montalcini,” Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Salvatore Petrone
- Department of Neuroscience “Rita Levi Montalcini,” Unit of Neurosurgery, University of Turin, Turin, Italy,Salvatore Petrone, Department of Neuroscience “Rita Levi Montalcini,” Unit of Neurosurgery, University of Turin, Via Cherasco 15, Turin 10126, Italy.
| | - Fulvio Tartara
- Spine Surgery Unit, Humanitas Gradenigo Hospital, Turin, Italy
| | - Diego Garbossa
- Department of Neuroscience “Rita Levi Montalcini,” Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Marco Bozzaro
- Spine Surgery Unit, Humanitas Gradenigo Hospital, Turin, Italy
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Petrone S, Cofano F, Nicolosi F, Spena G, Moschino M, Di Perna G, Lavorato A, Lanotte MM, Garbossa D. Virtual-Augmented Reality and Life-Like Neurosurgical Simulator for Training: First Evaluation of a Hands-On Experience for Residents. Front Surg 2022; 9:862948. [PMID: 35662818 PMCID: PMC9160654 DOI: 10.3389/fsurg.2022.862948] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/04/2022] [Indexed: 12/01/2022] Open
Abstract
Background In the recent years, growing interest in simulation-based surgical education has led to various practical alternatives for medical training. More recently, courses based on virtual reality (VR) and three-dimensional (3D)-printed models are available. In this paper, a hybrid (virtual and physical) neurosurgical simulator has been validated, equipped with augmented reality (AR) capabilities that can be used repeatedly to increase familiarity and improve the technical skills in human brain anatomy and neurosurgical approaches. Methods The neurosurgical simulator used in this study (UpSurgeOn Box, UpSurgeOn Srl, Assago, Milan) combines a virtual component and a physical component with an intermediate step to provide a hybrid solution. A first reported and evaluated practical experience on the anatomical 3D-printed model has been conducted with a total of 30 residents in neurosurgery. The residents had the possibility to choose a specific approach, focus on the correct patient positioning, and go over the chosen approach step-by-step, interacting with the model through AR application. Next, each practical surgical step on the 3D model was timed and qualitatively evaluated by 3 senior neurosurgeons. Quality and usability-grade surveys were filled out by participants. Results More than 89% of the residents assessed that the application and the AR simulator were very helpful in improving the orientation skills during neurosurgical approaches. Indeed, 89.3% of participants found brain and skull anatomy highly realistic during their tasks. Moreover, workshop exercises were considered useful in increasing the competency and technical skills required in the operating room by 85.8 and 84.7% of residents, respectively. Data collected confirmed that the anatomical model and its application were intuitive, well-integrated, and easy to use. Conclusion The hybrid AR and 3D-printed neurosurgical simulator could be a valid tool for neurosurgical training, capable of enhancing personal technical skills and competence. In addition, it could be easy to imagine how patient safety would increase and healthcare costs would be reduced, even if more studies are needed to investigate these aspects. The integration of simulators for training in neurosurgery as preparatory steps for the operating room should be recommended and further investigated given their huge potential.
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Affiliation(s)
- Salvatore Petrone
- Department of Neuroscience “Rita Levi Montalcini”—Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Fabio Cofano
- Department of Neuroscience “Rita Levi Montalcini”—Unit of Neurosurgery, University of Turin, Turin, Italy
- Humanitas Gradenigo, Turin, Italy
| | - Federico Nicolosi
- Dipartimento di Medicina e Chirurgia - Neurochirurgia, Università degli Studi di Milano Bicocca, Milan, Italy
| | - Giannantonio Spena
- Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy
| | | | - Giuseppe Di Perna
- Department of Neuroscience “Rita Levi Montalcini”—Unit of Neurosurgery, University of Turin, Turin, Italy
- *Correspondence: Giuseppe Di Perna
| | - Andrea Lavorato
- Department of Neuroscience “Rita Levi Montalcini”—Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Michele Maria Lanotte
- Department of Neuroscience “Rita Levi Montalcini”—Unit of Neurosurgery, University of Turin, Turin, Italy
| | - Diego Garbossa
- Department of Neuroscience “Rita Levi Montalcini”—Unit of Neurosurgery, University of Turin, Turin, Italy
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Cofano F, Langella F, Petrone S, Baroncini A, Cecchinato R, Redaelli A, Garbossa D, Berjano P. Clinical and radiographic performance of indirect foraminal decompression with anterior retroperitoneal lumbar approach for interbody fusion (ALIF). Clin Neurol Neurosurg 2021; 209:106946. [PMID: 34555799 DOI: 10.1016/j.clineuro.2021.106946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/06/2021] [Accepted: 09/12/2021] [Indexed: 01/31/2023]
Abstract
STUDY DESIGN Retrospective study BACKGROUND: Indirect decompression with ALIF allows the restoration of the disk and foraminal height with limited soft tissue damage. However, it does not offer a direct view of the neural structure and a direct intraoperative assessment of the results of the decompression is not possible. For this reason, ALIF is often accompanied by posterior, direct decompression. So far, there is no consensus on the effects of indirect decompression alone for L5-S1 foraminal stenosis. OBJECTIVE Evaluation of the clinical and mechanical performance of indirect decompression with anterior lumbar interbody fusion (ALIF) in L5-S1 foraminal stenosis. METHODS All patients who underwent ALIF at our institution and had a minimum follow-up of six months were assessed for inclusion. Radiographic parameters (anterior and posterior disc height, foraminal height and surface, L5-S1 angle, pelvic incidence, pelvic tilt and lumbar lordosis) and clinical data (Oswestry Disability Index - ODI and Numeric Rating Scale - NRS) before ALIF and at the last follow-up were compared. A regression analysis was performed to investigate the correlation between radiographic and clinical outcomes. RESULTS Thirty-four patients were available for the study (55.9% female, mean age 53.4±11.5 years), mean follow-up was 26.4±11.1 months. At the last follow-up, a significant increase in foraminal height (14.6±4.0 vs. 17.9±3.9 mm, p<0.001), posterior disc height (6.5±2 vs. 9.1±2 mm, p<0.001) was observed. ODI and NRS back and leg improved significantly. The NRS leg correlated with foraminal height (r=-0.45), foraminal surface (r=-0.36) and anterior (r=-0.41) and posterior disc height (r=-0.43). CONCLUSION ALIF provided significant indirect foraminal decompression and improvement of radicular pain. The increase of foraminal height, surface, and posterior disc height is directly associated with radicular pain improvement. LEVEL OF EVIDENCE IV AVAILABILITY OF DATA AND MATERIAL: The datasets used and/or analyzed in the present study are available from the corresponding author on reasonable request.
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Affiliation(s)
- Fabio Cofano
- Neurosurgery Department of Neuroscience "Rita Levi Montanlcini", University of Torino, Turin, Italy.
| | | | - Salvatore Petrone
- Neurosurgery Department of Neuroscience "Rita Levi Montanlcini", University of Torino, Turin, Italy.
| | - Alice Baroncini
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy; Department of Orthopaedics, RWTH Uniklinik Aachen, Aachen, Germany.
| | | | | | - Diego Garbossa
- Neurosurgery Department of Neuroscience "Rita Levi Montanlcini", University of Torino, Turin, Italy.
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Petrone S, Marengo N, Ajello M, Lavorato A, Penner F, Cofano F, Zenga F, Garbossa D. Cortical bone trajectory technique's outcomes and procedures for posterior lumbar fusion: A retrospective study. J Clin Neurosci 2020; 76:25-30. [PMID: 32331945 DOI: 10.1016/j.jocn.2020.04.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 03/10/2020] [Accepted: 04/11/2020] [Indexed: 12/28/2022]
Abstract
Cortical Bone Trajectory screws allow a limited soft tissue dissection with mechanical properties comparable to traditional pedicle screws. However, clinical results are still reported on limited samples. The study aimed to evaluate perioperative and mid-term follow up outcomes, clinical results and complications in 238 consecutive patients underwent CBT fusion for degenerative lumbosacral disease. Pre- and intraoperative data, clinical outcomes and complications were collected. The patients were stratified in three groups. The original technique was performed in the first 43 cases without a preoperative CT scan planning. The second group includes the patients who underwent preoperative CT scan for entry point and screw trajectory planning (158 patients). Surgical procedures in the last group were performed with patient-matched 3D printed guide (37 patients). The accuracy in screws positioning was evaluated on postoperative CT scan. The mean follow-up was 32.3 months. Mean ODI and VAS index improved with statistical significance. Mean procedural time was 187, 142 and 124 min in the three subgroups. The total amount of recorded complications was 4.2% (16.3%, 3.8% and 0.0% respectively). Screws entirely within the cortex of the pedicle were 78.9%, 90.5% and 93.9% in the three groups. Fusion was obtained in 92.4% of cases. The CBT technique is a safe procedure, especially with an accurate preoperative CT scan-based planning. This seems more evident with the 3D template patient-matched guide. More studies are needed to directly compare traditional pedicle screws and CBT screws on long-term outcomes.
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Affiliation(s)
- Salvatore Petrone
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy.
| | - Nicola Marengo
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
| | - Marco Ajello
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
| | - Andrea Lavorato
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
| | - Federica Penner
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
| | - Fabio Cofano
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
| | - Francesco Zenga
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
| | - Diego Garbossa
- Department of Neuroscience, Neurosurgery, University of Turin, Turin, Italy
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Cofano F, Marengo N, Ajello M, Penner F, Mammi M, Petrone S, Lavorato A, Zenga F, Garbossa D. The Era of Cortical Bone Trajectory Screws in Spine Surgery: A Qualitative Review with Rating of Evidence. World Neurosurg 2020; 134:14-24. [DOI: 10.1016/j.wneu.2019.10.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/11/2019] [Accepted: 10/13/2019] [Indexed: 12/14/2022]
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Cofano F, Sciarrone GJ, Pecoraro MF, Marengo N, Ajello M, Penner F, Petrone S, Ducati A, Zenga F, Musso C, Garbossa D. Cervical Interfacet Spacers to Promote Indirect Decompression and Enhance Fusion in Degenerative Spine: A Review. World Neurosurg 2019; 126:447-452. [PMID: 30904796 DOI: 10.1016/j.wneu.2019.03.114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/09/2019] [Accepted: 03/11/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Among the posterior techniques, the use of cervical interfacet spacers (CISs) represents a promising technology whose potentialities are still being studied. The purpose of the present review was to assess the available data on CISs. METHODS A search on PubMed was performed. The search terms were "cervical interfacet spacers," "facet spacers," "DTRAX facet system," "Goel facet spacer," "pseudarthrosis," "cervical lordosis," "iatrogenic kyphosis," "cervical foraminal decompression," "cervical biomechanics," "atlantoaxial instability," and "subaxial instability." RESULTS Mechanical studies have shown that stand-alone CISs promoted stiffness in all directions, except for extension. Foraminal distraction was recorded in 86% of the cases. Clinical studies have shown that the use of CISs could promote successful arthrodesis, given the large surface area affected by fusion and decreasing the need for autografts. The effectiveness for the treatment of radiculopathy has been confirmed by several clinical studies. In a series of 154 levels of implanted CISs, no evidence of significant loss of cervical lordosis was identified. CISs could help in enhancing fusion in C1-C2 fixation. CONCLUSIONS Biomechanical studies on specimens showed a positive trend in increasing stiffness of the cervical spine, despite some controversial results. In clinical studies, facet distraction was shown to be a safe and valid option for clinical indirect decompression, although longer follow-up is required for confirmation. No evidence of the loss of cervical lordosis has been recorded. The long-term effects and CIS use in revision procedures as adjuvant implants to treat pseudarthrosis or atlantoaxial instability are currently under investigation, and further studies are needed.
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Affiliation(s)
- Fabio Cofano
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy.
| | | | | | - Nicola Marengo
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Marco Ajello
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Federica Penner
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Salvatore Petrone
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Alessandro Ducati
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Francesco Zenga
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
| | - Corrado Musso
- Spinal Surgery, Humanitas Research Center, Bergamo, Italy
| | - Diego Garbossa
- Division of Neurosurgery, Department of Neuroscience, University of Turin, Turin, Italy
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Marengo N, Berjano P, Cofano F, Ajello M, Zenga F, Pilloni G, Penner F, Petrone S, Vay L, Ducati A, Garbossa D. Cortical bone trajectory screws for circumferential arthrodesis in lumbar degenerative spine: clinical and radiological outcomes of 101 cases. Eur Spine J 2018; 27:213-221. [DOI: 10.1007/s00586-018-5599-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/09/2018] [Indexed: 12/28/2022]
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Small T, Marsano-Feeley J, Fernandez A, Grasso T, Feldman K, Petrone S, Bugazia N, Wong C, Meyer J, Schutta K, Purkayastha D, Saintil K, Spatz Caplan E, Waltman-Johnson K. Abstract P4-10-07: Patient-centered initiatives for improving trial participation of diverse patient populations in the open-label phase 3b compLEEment-1 study of ribociclib plus letrozole in the treatment of HR+/HER2- advanced breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-10-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Reported 10-year survival rates in Caucasian, black, and Hispanic women with breast cancer are 80%, 66%, and 78%, respectively. One barrier to understanding disparities in these survival rates is the lack of data due to underrepresentation in clinical trials (including black, Hispanic, Native American, and Pacific Islander populations). US physicians at sites that treat minority patients with breast cancer identified lack of access to and financial burden of clinical trials as 2 key barriers to enrollment. Insufficient knowledge of genetic mutations specific to breast cancer is also a key barrier to identifying ideal treatment to extend survival in minorities. Patient-specific initiatives for the CompLEEment-1 study (CLEE011A2404; NCT02941926), a single-arm, international Phase 3b study of ribociclib (600 mg/d, 3 weeks on/1 week off) plus letrozole (2.5 mg/d) in adults with hormone receptor–positive, human epidermal growth factor–negative advanced breast cancer, were developed in the United States to increase the enrollment of diverse populations and better understand the disease and patient response to treatment.
Methods: The enrollment initiatives included formation of a board of leading physicians and academics to advise on awareness initiatives and the cultural competency of tools used in clinical trials, a site selection process that brought the trial to the patient's clinic, a simplified expense reimbursement program to reduce patient economic burden, and partnerships with the Bridge Group and the National Black Church Initiative to bring clinical trial awareness and education to the African American church community. A tumor collection companion study (NCT03050398) was created to identify mechanisms of resistance among racial and ethnic groups. These initiatives aimed to increase the percentage of minorities from previous trials (eg, 5.7% in the MONALEESA-2 trial) and identify potential biological differences associated with race or ethnicity that might affect treatment response.
Results: Enrollment in the CompLEEment-1 study is ongoing. Among the first 57 US patients enrolled, 8 (14.0%) were minorities (not identified as Caucasian or Asian), 32 (56.1%) were <65 years old, 7 (12.3%) were premenopausal women, and 2 (3.5%) were men. Thirty-one patients were enrolled in the simplified expense reimbursement program. Of the open study sites, 35 (52.2%) were located >30 miles outside of metropolitan areas. Of the open study sites with enrolled patients, 16 enrolled 1, 8 enrolled 2, and 5 enrolled ≥3 patients.
Conclusions: Following discussions with physicians and assessments of patient feedback to identify reasons for underrepresentation of minority patient populations in clinical trials, patient-centered initiatives were developed for the CompLEEment-1 study in the United States to simultaneously reduce barriers to trial participation, reduce economic burden of enrolled patients, and identify biomarkers of therapeutic sensitivity and resistance. These initiatives resulted in an initial increase in the percentage of minorities enrolled to better reflect real-world populations.
Citation Format: Small T, Marsano-Feeley J, Fernandez A, Grasso T, Feldman K, Petrone S, Bugazia N, Wong C, Meyer J, Schutta K, Purkayastha D, Saintil K, Spatz Caplan E, Waltman-Johnson K. Patient-centered initiatives for improving trial participation of diverse patient populations in the open-label phase 3b compLEEment-1 study of ribociclib plus letrozole in the treatment of HR+/HER2- advanced breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-10-07.
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Affiliation(s)
- T Small
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | | | - A Fernandez
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - T Grasso
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - K Feldman
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - S Petrone
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - N Bugazia
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - C Wong
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - J Meyer
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - K Schutta
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - D Purkayastha
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - K Saintil
- Novartis Pharmaceuticals Corporation, East Hanover, NJ
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Miller BV, Sharp WJ, Shamma AR, Kresowik TF, Petrone S, Corson JD. Surveillance for recurrent stenosis after endovascular procedures. A prospective study. Arch Surg 1991; 126:867-71; discussion 871-2. [PMID: 1830200 DOI: 10.1001/archsurg.1991.01410310077011] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Eighty-nine endovascular procedures were performed during a 1-year period. Techniques included balloon angioplasty (n = 50), laser-assisted balloon angioplasty (n = 32), and atherectomy (n = 7). Indications were claudication (65.2%), critical ischemia (30.3%), and failing bypass (4.5%). Preoperative evaluation included a history and physical examination, segmental limb pressures, and color duplex ultrasonography. Postoperative surveillance consisted of a history and physical examination, ankle-arm indexes, and color duplex examinations at 1-week, 1-month, and then 3-month intervals. All levels of aortoiliac and infrainguinal disease were treated. Immediate technical success rate was 89.8%. Recurrence rates by life-table analysis reveal a 9-month patency rate of 45.4%. Early results of this prospective study indicate that endovascular procedures are subject to significant restenosis rates. Restraint is advised concerning general acceptance of endovascular procedures pending critical study.
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Affiliation(s)
- B V Miller
- Department of Surgery, University of Iowa College of Medicine, Iowa City
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Petrone S. Laser assisted balloon angioplasty: bypassing the traditional methods. Todays OR Nurse 1990; 12:22-7. [PMID: 2141736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
No two procedures will be identical as each patient will have different needs. Therefore, knowledge of sizes and limitations of catheters and laser probes is imperative to facilitate the LABA procedure. Advance preparation of the OR suite facilitates the procedure, which can proceed quickly after guidewire passage. Laser safety guidelines must be established and enforced throughout the procedure. A laser nurse, not responsible for circulating the case, should be identified and is responsible for laser safety during the procedure.
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Affiliation(s)
- S Petrone
- Veterans Administration Medical Center, Iowa City
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Cochran C, Petrone S. Elder abuse: the physician's role in identification and prevention. IMJ Ill Med J 1987; 171:241-6. [PMID: 2884204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Abstract
The factors relating to the clinical outcome of an industrial aerosol plant explosion are reviewed. Eighteen of 24 workers inside the plant required hospitalization and five died. Proximity to the blast was associated with extensive injuries unless workers were shielded by physical barriers or partitions. Burn severity and mortality were increased in those wearing synthetic garments compared to their counterparts wearing fiber clothing. Facial burns occurred in all unprotected workers. Forearm and hand burns in 11 patients required decompressive escharotomies. Topical treatment with silver sulfadiazine was associated with more significant leukopenia and neutropenia than treatment with silver nitrate. We conclude that industrial design should include safeguards which isolate workers from flammable materials, including isolation of explosive materials from working areas, alarm systems to detect leakage of flammable agents, protective barriers and shields, and the regulation and institution of flame and flash-resistant clothing.
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