Browsing by Author "Zamorano, Juan José"
Now showing 1 - 5 of 5
Results Per Page
Sort Options
Publication A Systematic Review of Current Terminology for Conditions Preceding Degenerative Cervical Myelopathy: Evidence Synthesis to Inform an AO Spine Expert Opinion Statement(2025) Agrawal, Vinisha; Farhan Ali, Mohammed; Yasin, Froher; Ashraf, Daniyal; Brannigan, Jamie F. M.; Yurac, Ratko; Kumar, Vishal; Murphy, Rory; Tessitore, Enrico; Molliqaj, Granit; Dejaegher, Joost; Zamorano, Juan José; Wynne-Jones, Guy; Tripathi, Manjul; Anderson, David B.; Arbatin, Jose Joefrey F.; Kato, So; Romelean Jayapalan, Ronie; Dea, Nicolas; Harrop, James S.; Wilson, Jefferson; Kwon, Brian K.; Martin, Allan R.; Bednarik, Josef; Kotter, Mark R.; Davies, Benjamin M.; Mowforth, Oliver D.; Nouri. AriaStudy Design: Systematic review. Objectives: The pre-symptomatic state of Degenerative Cervical Myelopathy (DCM), wherein degenerative changes and spinal cord compression are seen without clinical findings, is poorly understood and inconsistently categorised. Clear identification may elucidate the temporality of DCM development. Therefore, a systematic assessment was undertaken of current terminology for pre-DCM states, with the objective of standardising definitions and informing an AO Spine expert position statement. Methods: Medline and Embase were searched for all studies on asymptomatic spinal compression or clinical findings preceding DCM, returning 3585 studies. After screening, 96 studies were included in the final analysis. The terminology used for pre-DCM states and their definitions were extracted, along with their frequencies or speciality/country of author in the literature. Results: Multiple terms were used to represent pre-DCM stages, including “asymptomatic” (86 studies), “non-myelopathic” (26 studies), “without myelopathy” (15 studies), “pre-symptomatic” (9 studies) and “sub-clinical” (7 studies). “asymptomatic” was associated with the greatest inconsistency. Some defined this as patients with radiological signs of spinal degeneration with/without spinal cord compression but no clinical signs of myelopathy, whereas others used the term synonymously with healthy controls. This inconsistency is particularly challenging in clinical studies in which DCM patients are compared to those with pre- DCM states and/or healthy volunteers. Conclusion: There is substantial inconsistency in the terms used to describe pre-DCM states. There is no clear relationship between the terms used and the country or speciality of the main author. Standardised definitions for these disease states should be agreed and used in future studies.Publication CT Scan in Subaxial Cervical Facet Injury: Is It Enough for Decision-Making?(2023) Cabrera, Juan P.; Yurac, Ratko; Joaquim, Andrei F.; Guiroy, Alfredo; Carazzo, Charles A.; Zamorano, Juan José; Valacco, Marcelo; AO Spine Latin America Trauma Study GroupStudy Design: Cross-sectional survey. Objectives: Assessment of subaxial cervical facet injuries using the AO Spine Subaxial Cervical Spine Injury Classification System is based on CT scan findings. However, additional radiological evaluations are not directly considered. The aim of this study is to determine situations in which spine surgeons request additional radiological exams after a facet fracture. Methods: A survey was sent to AO Spine members from Latin America. The evaluation considered demographic variables, routine use of the Classification, as well as the timepoint at which surgeons requested a cervical MRI, a vascular study, and/ or dynamic radiographs before treatment of facet fractures. Results: There was 229 participants, mean age 42.9 ± 10.2 years; 93.4% were men. Orthopedic surgeons 57.6% with 10.7 ± 8.7 years of experience in spine surgery. A total of 86% used the Classification in daily practice. An additional study (MRI/vascular study/and dynamic radiographs) was requested in 53.3%/9.6%/43.7% in F1 facet injuries; 76.0%/20.1%/50.2% in F2; 89.1%/65.1%/28.4% in F3; and 94.8%/66.4%/16.6% in F4. An additional study was frequently required: F1 72.5%, F2 86.9%, F3 94.7%, and F4 96.1%. Conclusions: Spine surgeons generally requested additional radiological evaluations in facet injuries, and MRI was the most common. Dynamic radiographs had a higher prevalence for F1/F2 fractures; vascular studies were more common for F3/F4 especially among surgeons with fewer years of experience. Private hospitals had a lower spine trauma cases/year and requested more MRI and more dynamic radiographs in F1/F2. Neurosurgeons had more vascular studies and dynamic radiographs than orthopedic surgeons in all facet fractures.Publication Mielopatía cervical degenerativa: una patología cada vez más frecuente y que requiere diagnóstico y manejo precoz(2022) Zamorano, Juan José; Yurac, Ratko; Matamala, José Manuel; Harrop, James S.; Davies, Benjamin M.; Nouri, Aria; Fehlings, Michael G.Degenerative cervical myelopathy (DCM) is the most common cause of spinal cord dysfunction in adults. Its prevalence is increasing as a result of population aging. The diagnosis of DCM is often delayed or overlooked, resulting in secondary neurologic morbidity. The natural course of DCM typically presents as a gradual neurological deterioration, with symptoms ranging from muscle weakness to complete paralysis, with variable degrees of sensory deficits and sphincter dysfunction. Magnetic resonance imaging (MRI) and electrophysiological studies allow the assessment of spinal cord function and its structural damage to determine treatment and clinical outcomes. All patients with signs and symptoms consistent with DCM should be referred to a spine surgeon for assessment and tailored treatment. Those patients with mild DCM can be managed non-operatively but require close monitoring and education about potentially alarming signs and symptoms. Surgery is not currently recommended for asymptomatic patients with evidence of spinal cord compression or cervical spinal stenosis on MRI, but they require a structured follow-up. Patients with moderate or severe DCM require surgical decompression to avoid further progression. The objective of this review is to raise awareness of degenerative cervical myelopathy and its increasing prevalence as well as to aid non-surgical healthcare workers for a timely diagnosis and management of this disabling condition.Publication Protocol for the development of enhanced recovery after surgery (ERAS) recommendations for individuals undergoing surgery for degenerative cervical myelopathy(2025) Treanor, Caroline; Anderson, David; Davies, Benjamin; Chhabra, Harvinder; Hutton,Mike; Venkatraghavan, Laskhmikumar; Lazarus, Jed; Singh, Anoushka; Smith, Kieran; Stubbs, Daniel; Vedantam, Aditya; Zamorano, Juan José; Zipser, Carl; Wainwright, Thomas; Wardropper, Jay; Fehlings, MichaelStudy design: Protocol for the development of enhanced recovery after surgery (ERAS) recommendations for DCM surgery. Objectives: To develop ERAS recommendations in collaboration with the ERAS Society to optimize care for individuals having surgery for degenerative cervical myelopathy (DCM)-the most common type of nontraumatic spinal cord injury. Methods: The study protocol was developed in line with the AGREE II checklist for clinical practice guidelines and the ERAS Society standards for guideline development. A multidisciplinary international guideline development group (GDG) including a representative from the ERAS society, clinical experts in the surgical care of people with DCM, and people with lived experience of having surgery for DCM has been established. The recommendations will follow the GRADE methodology and will therefore include the following steps. 1) Framing the health care questions. 2) Selecting and rating the importance of outcomes for each ERAS candidate interventiont. 3) Summarizing the evidence for each ERAS candidate intervention. 4) Judging the quality of evidence for each ERAS candidate intervention. 5) Judging the strength of the recommendations for each ERAS candidate intervention. 6) Developing recommendations statements for the included ERAS interventions and achieving consensus on the ERAS intervention statements to be included in the final guideline. Following the recommendation statements' development, key stakeholders will be invited to externally review the guidelines. Conclusion: ERAS recommendations for DCM aim to reduce the incidence and severity of adverse events, optimize patient outcomes, improve the efficiency and quality of care, and patients' experience and satisfaction with care.Item Treatment strategies for managing cervical spine injuries in rugby players(2021) Yurac, Ratko; Zamorano, Juan José; Quinteros, Guisela; Izquierdo, Guillermo; Novoa, Felipe; Brañes, Rocío; Valencia, Manuel; Silva, Álvaro; Marré, BartoloméBackground: Cervical spine fractures are potentially catastrophic injuries in rugby players. Here, we reviewed seven patients who sustained rugby-related cervical spine fractures. Notably, three of seven fractures were missed on initial X-rays, but were ultimately documented on CT studies obtained an average of 10 days later. Methods: Seven patients sustained cervical spine fracture attributed to rugby (2009–2016) and were followed an average of 52 posttrauma months. Most injuries occurred at the C6-C7 level, and six of seven patients required surgery. Further, only two of seven patients exhibited resultant neurological deficits (e.g., one myelopathy and one radiculopathy). Results: Although the rugby injury was sufficiently documented on initial X-rays in four patients, three initial X-rays missed fractures, which were documented on the CT studies obtained an average of 10 days later. Conclusion: Rugby-related cervical fractures must be considered where players continue to complain of pain following trauma. Notably, routine X-rays may miss fractures in 3 of 7 cases (43%), thus warranting supplemental CT examinations to definitively rule out fractures.