YURAC BARRIENTOS, RATKO JOVAN
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YURAC BARRIENTOS, RATKO JOVAN
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yratko@udd.cl
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24436839000

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2024 2024 2023 2023 2022 2022 2021 2021 2020 2020 2019 2019 2018 2018 2017 2017 2016 2016 0 0 2 2 4 4 6 6 8 8 10 10

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Targeting earlier diagnosis: What symptoms come first in Degenerative Cervical Myelopathy?

2023 , Colin F. Munro , YURAC BARRIENTOS, RATKO JOVAN , Zipser Carl Moritz , Michael G. Fehlings , Ricardo Rodrigues-Pinto , James Milligan , Konstantinos Margetis , Mark R. N. Kotter , Benjamin M. Davies , Andrea Martinuzzi

Background Degenerative cervical myelopathy (DCM) is a common and disabling condition. Early effective treatment is limited by late diagnosis. Conventional descriptions of DCM focus on motor and sensory limb disability, however, recent work suggests the true impact is much broader. This study aimed to characterise the symptomatic presentation of DCM from the perspective of people with DCM and determine whether any of the reported symptoms, or groups of symptoms, were associated with early diagnosis. Methods An internet survey was developed, using an established list of patient-reported effects. Participants (N = 171) were recruited from an online community of people with DCM. Respondents selected their current symptoms and primary presenting symptom. The relationship of symptoms and their relationship to time to diagnosis were explored. This included symptoms not commonly measured today, termed ‘non-conventional’ symptoms. Results All listed symptoms were experienced by >10% of respondents, with poor balance being the most commonly reported (84.2%). Non-conventional symptoms accounted for 39.7% of symptomatic burden. 55.4% of the symptoms were reported as an initial symptom, with neck pain the most common (13.5%). Non-conventional symptoms accounted for 11.1% of initial symptoms. 79.5% of the respondents were diagnosed late (>6 months). Heavy legs was the only initial symptom associated with early diagnosis. Conclusions A comprehensive description of the self-reported effects of DCM has been established, including the prevalence of symptoms at disease presentation. The experience of DCM is broader than suggested by conventional descriptions and further exploration of non-conventional symptoms may support earlier diagnosis.

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Minimally Invasive Surgery for Traumatic Thoracolumbar Fractures: A Cross-Sectional Study of Spine Surgeons

2023 , Guillermo A. Ricciardi , Juan Ignacio Cirillo Totera , Juan P. Cabrera , Alfredo Guiroy , Charles A. Carazzo , YURAC BARRIENTOS, RATKO JOVAN

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Risk factors for the need of surgical treatment of a first recurrent lumbar disc herniation

2016 , Ratko Yurac , Juan J. Zamorano , Fernando Lira , Diego Valiente , Vicente Ballesteros , Alejandro Urzúa

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Traumatic cervical spine injury due to pole dance accident: A potentially catastrophic unreported injury with a happy ending. Case report and literature review

2022 , YURAC BARRIENTOS, RATKO JOVAN , ZAMORANO PÉREZ, JUAN JOSÉ , Andrea Marre , Cristian Diaz

Background: Pole dancing is a sport that has become very popular. However, there is scarce literature on injuries associated with this sport. Here, we present a 23-year-old female who sustained a traumatic C4-C5 vertex cervical spine injury caused by a fall of 1 m while practicing pole dancing in an inverted position, requiring a 360 decompression/fusion. Case Description: A 23-year-old female sustained a 1 m fall in an inverted position while pole dancing resulting in a direct axial impact to the head. She developed the rapid onset of quadriparesis that was attributed to the emergent CT/MR-documented cervical flexodisruptive luxofracture (AOSpine C4-C5 fracture: C, F4 unilateral, N3, M2). Four hours post injury, she underwent a C4-C5 anterior cervical discectomy and fusion. Four days later, a posterior fusion was performed to add to the stabilization. Six years later, the patient remains neurologically intact. Conclusion: Pole dance is an emerging sport which carries a risk of cervical spine injury.

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Time to Surgery for Unstable Thoracolumbar Fractures in Latin America—A Multicentric Study

2021 , Alfredo Guiroy , Charles A. Carazzo , Juan J. Zamorano , Juan P. Cabrera , Andrei F. Joaquim , Joana Guasque , Ericson Sfredo , Kevin White , YURAC BARRIENTOS, RATKO JOVAN , Asdrubal Falavigna

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[Artículo traducido] Lesiones vertebrales por proyectil de arma de fuego: estudio de cohorte retrospectivo, multicéntrico

2024 , G. Ricciardi , J.P. Cabrera , Ó. Martínez , J. Cabrera , J. Matta , V. Dávila , J.M. Jiménez , H. Vilchis , V. Tejerina , J. Pérez , YURAC BARRIENTOS, RATKO JOVAN

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Orthopedic postoperative infection profile and antibiotic sensitivity of 2038 patients across 24 countries – Call for region and institution specific surgical antimicrobial prophylaxis

2024 , Mengistu G. Mengesha , Shanmuganathan Rajasekaran , Karthik Ramachandran , Vetrivel Chezian Sengodan , Nor Faissal Yasin , Luke Michael Williams , Maritz Laubscher , Kota Watanabe , O.Z.M. Dastagir , Akinola Akinmade , Hizkyas K. Fisseha , Amer Aziz , YURAC BARRIENTOS, RATKO JOVAN , Ephrem Gebrehana , Mohammed AlSaifi , Kalaventhan Pathinathan , G. Sudhir , Amran Ahmed Shokri , Yong Chan Kim , Sharif Ahmed Jonayed , Gonzalo R. Kido , Jose Manuel Ignacio , Matiyas Seid Mohammed , Kabir Abubakar , Jonaed Hakim , Sailendra Kumar Duwal Shrestha , Abdullah Al Mamun Choudhury , Malick Diallo , Marcelo Molina , Sandeep Patwardhan , Yong Hai , Ali M. Ramat , Momotaro Kawai , Jae Hwan Cho , Rosan Prasad Shah Kalawar , Sung-Woo Choi , Baron Zarate-Kalfopulos , Alfredo Guiroy , Nelson Astur , AlexisD.B. Buunaaim , Anton L. Human , Atiq Uz Zaman

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Unstable Thoracolumbar Injuries: Factors Affecting the Decision for Short-Segment vs Long-Segment Posterior Fixation

2022 , Juan P. Cabrera , Alfredo Guiroy , Charles A. Carazzo , YURAC BARRIENTOS, RATKO JOVAN , Marcelo Valacco , Emiliano Vialle , Andrei F. Joaquim

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Pathological axis fracture secondary to a solitary bone plasmacytoma: Two cases and a literature review

2021 , YURAC BARRIENTOS, RATKO JOVAN , Alvaro Silva , Matias Delgado , Marilaura Nuñez , Juan Lopez , Bartolome Marre

Background: Solitay bone plasmocytoma (SBP) account for just 5–10% of all plasma cell neoplasms. They are infrequent in the cervical spine, especially involving the C0–C2 segment. In this article we conducted a literature review and present the diagnosis, management and long term course of two patients with SBP of C2 causing cervical instability. Methods: We assessed the clinical records of two patients with SBP in C2 and cervical instability attributed to SP-B involving C2. Both patients presented with progressive, severe cervicalgia, and the “sensation” of skull instability. Magnetic resonance imaging revealed an extensive, infiltrative lesion involving C2 vertebral body and lateral masses, consistent with a plasmacytoma. Results: Both patients underwent emergency posterior surgical stabilization with craniocervical fixation; this was accompanied by a C2 transpedicular biopsy. Postoperatively, patients exhibited no focal neurological deficits and rapidly became pain free. They additional recieved 25 sessions of local conventional radiation therapy. Both patients are doing well as respective 2 and 7-year follow-up. Conclusion: Although rare, unstable SBP may present atypical cervical location that readily responds to surgical descompression/fusion and radiotherapy.

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Treatment of unilateral cervical facet fractures without evidence of dislocation or subluxation: a narrative review and proposed treatment algorithm

2024 , Juan Ignacio Cirillo , Guillermo A Ricciardi , Facundo Lisandro Alvarez Lemos , Alfredo Guiroy , YURAC BARRIENTOS, RATKO JOVAN , Klaus Schnake , _ _

Isolated cervical spine facet fractures are often overlooked. The primary imaging modality for diagnosing these injuries is a computed tomography scan. Treatment of unilateral cervical facet fractures without evidence of dislocation or subluxation remains controversial. The available evidence regarding treatment options for these fractures is of low quality. Risk factors associated with the failure of nonoperative treatment are: comminution of the articular mass or facet joint, acute radiculopathy, high body mass index, listhesis exceeding 2 mm, fragmental diastasis, acute disc injury, and bilateral fractures or fractures that adversely affect 40% of the intact lateral mass height or have an absolute height of 1 cm.

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