Minimal Invasive Fluoroscopic Percutaneous Lateral Stabilization of Thoracolumbar Spinal Fractures and Luxations Using Unilateral Uniplanar External Skeletal Fixators in Dogs and Cats

2021 ◽  
Author(s):  
Thomas Bitterli ◽  
Georg Mund ◽  
Thomas Christian Häußler ◽  
Daniela Farke ◽  
Martin Kramer ◽  
...  
Keyword(s):  
Spinal Column ◽  
Case Series ◽  
Spinal Fractures ◽  
Neurological Status ◽  
Spinal Fracture ◽  
Minimal Invasive ◽  
Radiographic Findings ◽  
Spinal Stabilization ◽  
Size Number ◽  
Neurological State

Abstract Objective The aim of this study was to describe minimally invasive spinal stabilization using a unilateral uniplanar external skeletal fixator (ESF, type 1a) with polymethylmethacrylate, and to review short- and long-term outcomes and complications in a clinical case series. Materials and Methods Medical records from animals affected by spinal fracture luxation were reviewed. The data included breed, age, gender, body weight, aetiology, preoperative and postoperative neurological state, radiographic findings, surgical treatment, pin size, number of pins and stabilized vertebrae, intra- and postoperative complications and neurological state at re-examinations. Results Thirty-two animals were identified; three were treated conservatively, 19 surgically and 10 were euthanatized. In eight dogs and six cats, the injured spinal column was treated with a laterally applied percutaneous type 1a ESF under fluoroscopic guidance. Positive profile end-threaded pins inserted were from 1.6/1.9 to 3.5/4.3 mm in dogs and 1.6/1.9 to 2/2.3 mm in cats and were placed into two to five vertebral bodies. At the re-examinations, the neurological status had improved in 12 animals, deteriorated in one, and was unchanged in another one. In eight cases, no complications were detected. The most common complications included erythema, exudation and pin loosening. Conclusion The present work shows that type 1a ESF can be successfully and minimally invasively applied to fractures and luxations of the spine in dogs and cats with minimal major complications.

scholarly journals MINIMALLY INVASIVE SPINE SURGERY IN THE NUEVO HOSPITAL CIVIL DE GUADALAJARA "DR. JUAN I. MENCHACA"

2016 ◽  
Vol 15 (4) ◽  
pp. 267-271
Author(s):  
MIGUEL ÁNGEL ANDRADE-RAMOS ◽  
YAZMÍN LEMUS-RODRÍGUEZ ◽  
EDGAR FERNANDO ACOSTA-GÓMEZ ◽  
SERGIO VALENTE ESPARZA-GUTIÉRREZ ◽  
FRANCISCO GUERRERO-JAZO ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Hospital Stay ◽  
Spine Surgery ◽  
Case Series ◽  
Neurological Status ◽  
Minimal Invasive ◽  
Bleeding Complications ◽  
Short Term ◽  
Adjacent Structures

ABSTRACT Objective: To describe our experience on a case series treated with minimal invasive techniques in spine surgery, with short-term follow-up and identify complications. Methods: A prospective analysis was performed on 116 patients operated on by the same team from September 2015 to June 2016. Evaluating the short-term follow-up we registered the surgical time, bleeding, complications, hospital stay, pre- and postoperatively neurological status, as well as scales of disability and quality of life. Demographic and surgical procedure data were analyzed with SPSS version 20 program. Results: A total of 116 patients with a mean age of 49.7 + 15.7 (21-85 years) underwent surgery being 76 (65%) with lumbar conditions and 37 (32%) with cervical conditions. The most common procedures were tubular discectomies (31), tubular bilateral decompression (17), lumbar MI-TLIFs (7), and anterior cervical discectomy and fusion (35). The mean blood loss was 50.6 cc, the hospital stay was 1.7 day, pre- and postoperative pain VAS were 7.4 % and 2.3%, respectively, pre- and postoperative Oswestry (ODI) were 64.6% and 13.1%, respectively, pre- and postoperative SF-36 of 37.8% and 90.3%. There were no major complications, except for a surgical wound infection in diabetic patient and three incidental durotomies, one of these being a contained fistula, treated conservatively. Conclusions: The current tendency towards minimally invasive surgery has been justified on multiple studies in neoplastic and degenerative diseases, with the preservation of the structures that support the spine biomechanics. The benefits should not replace the primary objectives of surgery and its usefulness depends on the skills of the surgeon, pathology and the adequate selection of the techniques. We found that the tubular access allows developing techniques such as discectomy, corpectomy and fusion without limiting exposure, avoiding manipulation of adjacent structures, reducing complications and being feasible in a public hospital.

Spinal fracture and luxation in dogs and cats

2008 ◽  
Vol 21 (03) ◽  
pp. 280-284 ◽  
Author(s):  
B.A. Brisson ◽  
K. Gyselinck ◽  
C.W. Bruce
Keyword(s):  
Medical Records ◽  
Spinal Fractures ◽  
Neurological Status ◽  
Spinal Fracture ◽  
Good Prognosis ◽  
Pain Sensation ◽  
Single Centre ◽  
Neurological Score ◽  
Pertinent Data ◽  
Cord Injury

SummaryThe purpose of this retrospective study was to review cases of spinal fractures or luxations (SFL) treated with various modalities in order to describe fracture location, neurological status, treatment, outcome and complications in a patient population at a single centre. The medical records of dogs and cats that had been diagnosed with a SFL between C1 and L7 between January 1995 and June 2005 were reviewed in order to collect pertinent data. Ninety-five cases were included in this study. The severity of spinal cord injury was graded on a scale from 0 to 5. Vehicular trauma was the most common cause of SFL. Spinal fractures were localized between C1-C5 in 10 cases, C6-T2 in one case, T3-L3 in 54 cases, L4-L7 in 36 cases. Thirty patients that were euthanatized without treatment had a median neurological score of 5. Twenty-eight patients, all of which had motor function, were treated conservatively and there was not any change in their median neurological grade at the time of discharge. Thirty-seven patients had surgery, 27 of which were non ambulatory. Thirty-five of 37 were stabilized using pins and/or screws and PMMA or various other techniques. The median neurological grade of surgically treated patients improved by one point between the time of initial diagnosis and discharge. Implant removal was performed in five cases. The patients that were treated with pins and/or screws and PMMA were significantly more improved than conservatively managed patients at the time of discharge, although the surgically treated patients were hospitalized significantly longer than the conservatively managed patients. Our results suggest that dogs that retain pain sensation prior to surgery have a good prognosis for functional recovery. In this study, the dogs that were treated conservatively retained purposeful movement and had a good prognosis for recovery.

Spinal fracture in a dog with diffuse idiopathic skeletal hyperostosis

2013 ◽  
Vol 26 (01) ◽  
pp. 76-81 ◽  
Author(s):  
M. Burger ◽  
K. Amort ◽  
L. Brunnberg ◽  
M. Kornmayer
Keyword(s):  
Computed Tomography ◽  
Diffuse Idiopathic Skeletal Hyperostosis ◽  
Spinal Column ◽  
Lumbar Vertebrae ◽  
Spinal Fractures ◽  
Spinal Fracture ◽  
Minor Trauma ◽  
New Bone Formation ◽  
Vertebral Bodies ◽  
Neurologic Function

SummaryA six-year-old, spayed female Weimaraner dog was first presented with the complaint of hindlimb paresis and then hindlimb paralysis two years later after colliding with a tree. Radiographs and computed tomography revealed spinal fractures at lumbar vertebrae (L)2-3 and at L4-5. In addition, the spinal column was affected by new bone formation along the vertebral bodies, bridging the disc spaces, as seen in diffuse idiopathic skeletal hyperostosis (DISH). Open reduction and internal fixation was achieved with standard vertebral body plating. This is the first report of DISH-associated spinal fractures after minor trauma in a dog. Surgery resulted in return of the full function after the first, and in improvement of neurologic function after the second incident.

Spinal fracture and luxation in dogs and cats

2008 ◽  
Vol 21 (03) ◽  
pp. 280-284 ◽  
Author(s):  
B. Brisson ◽  
K. Gyselinck ◽  
C. Bruce
Keyword(s):  
Medical Records ◽  
Spinal Fractures ◽  
Neurological Status ◽  
Spinal Fracture ◽  
Good Prognosis ◽  
Pain Sensation ◽  
Single Centre ◽  
Neurological Score ◽  
Pertinent Data ◽  
Cord Injury

SummaryThe purpose of this retrospective study was to review cases of spinal fractures or luxations (SFL) treated with various modalities in order to describe fracture location, neurological status, treatment, outcome and complications in a patient population at a single centre. Medical records of dogs and cats diagnosed with a SFL between C1 and L7 between January 1995 and June 2005 were reviewed to collect pertinent data. Ninety-five cases were included in this study. Severity of spinal cord injury was graded on a scale from 0 to 5. Vehicular trauma was the most common cause of SFL. Spinal fractures were localized between C1-C5 in 10 cases, C6-T2 in 1 case, T3-L3 in 54 cases, L4-L7 in 36 cases. Thirty patients euthanized without treatment had a median neurological score of 5. Twenty-eight patients, all of which had motor function, were treated conservatively and there was not any change in their median neurological grade at the time of discharge.. Thirty-seven patients had surgery, 27 of which were non ambulatory. Thirty-five of 37 were stabilized using pins and/or screws and PMMA or various other techniques. The median neurological grade of surgically treated patients improved by one point between the time of initial diagnosis and discharge. Implant removal was performed in 5 cases. Patients treated with pins and/or screws and PMMA were significantly more improved than conservatively managed patients at the time of discharge, although the surgically treated patients were hospitalized significantly longer than conservatively managed patients. Our results suggest that dogs that retain pain sensation prior to surgery have a good prognosis for functional recovery. In this study, dogs that were treated conservatively retained purposeful movement and had a good prognosis for recovery.

Treatment of spinal fractures using Lubra plates

2012 ◽  
Vol 25 (04) ◽  
pp. 326-331 ◽  
Author(s):  
L. F. H. Theyse ◽  
M. A. Tryfonidou ◽  
H. A. W. Hazewinkel ◽  
B. P. Meij ◽  
M. W. Krauss
Keyword(s):  
Vertebral Fractures ◽  
Spinal Fractures ◽  
Spinal Fracture ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Radiographic Findings ◽  
Spinous Processes ◽  
Clinical And Radiological Outcome

SummaryThe purpose of this retrospective study was to review the clinical use along with the shortand long-term outcome in patients treated with Lubra plates to stabilize spinal fracture and dislocations that were considered unstable at time of surgery according to the ‘three compartment theory’. The data that were collected included breed, age, gender, body weight of the patients, cause of injury, neurological grade (pre- and postoperative), radiographic findings, surgical treatment, and clinical and radiological outcome. Thirteen dogs and two cats were included with thoracic (1 case), thoracolumbar (3 cases), midlumbar (5 cases) and caudal lumbar (6 cases) vertebral fractures. For stabilization, the small-sized (3 cases), medium-sized (6 cases), and large-sized (6 cases) Lubra plates were used. The clinical outcome was excellent in 10/15 patients, functional in 2/15 and poor in 3/15 with a median follow-up period of nine years (range 2 months to 12 years). The fractures eventually stabilized by ventral spondylosis. No implant failure was seen, however demineralization of the spinous processes necessitated implant removal in one case. Our results suggest that Lubra plating is an appropriate technique for thoracolumbar and lumbar vertebral fractures as well as luxations in dogs and cats. The prognosis for neurological recovery was excellent when the animal had a neurological grade of 3 and was not paralyzed.

Plafond Malreduction and Talar Dome Impaction Accelerates Arthrosis After Supination-Adduction Ankle Fracture

2021 ◽  
pp. 107110072110060
Author(s):  
Michael F. Githens ◽  
Malcolm R. DeBaun ◽  
Kimberly A Jacobsen ◽  
Hunter Ross ◽  
Reza Firoozabadi ◽  
...  
Keyword(s):  
Case Series ◽  
High Energy ◽  
Ankle Fractures ◽  
Posttraumatic Arthritis ◽  
Retrospective Case ◽  
Level Of Evidence ◽  
Radiographic Findings ◽  
Posttraumatic Arthrosis ◽  
Patient Reported

Background: Supination-adduction (SAD) type II ankle fractures can have medial tibial plafond and talar body impaction. Factors associated with the development of posttraumatic arthritis can be intrinsic to the injury pattern or mitigated by the surgeon. We hypothesize that plafond malreducton and talar body impaction is associated with early posttraumatic arthrosis. Methods: A retrospective cohort of skeletally mature patients with SAD ankle fractures at 2 level 1 academic trauma centers who underwent operative fixation were identified. Patients with a minimum of 1-year follow-up were included. The presence of articular impaction identified on CT scan was recorded and the quality of reduction on final intraoperative radiographs was assessed. The primary outcome was radiographic ankle arthrosis (Kellgren-Lawrence 3 or 4), and postoperative complications were documented. Results: A total of 175 SAD ankle fractures were identified during a 10-year period; 79 patients with 1-year follow-up met inclusion criteria. The majority of injuries resulted from a high-energy mechanism. Articular impaction was present in 73% of injuries, and 23% of all patients had radiographic arthrosis (Kellgren-Lawrence 3 or 4) at final follow-up. Articular malreduction, defined by either a gap or step >2 mm, was significantly associated with development of arthrosis. Early treatment failure, infection, and nonunion was rare in this series. Conclusion: Malreduction of articular impaction in SAD ankle fractures is associated with early posttraumatic arthrosis. Recognition and anatomic restoration with stable fixation of articular impaction appears to mitigate risk of posttraumatic arthrosis. Investigations correlating postoperative and long-term radiographic findings to patient-reported outcomes after operative treatment of SAD ankle fractures are warranted. Level of Evidence: Level IV, retrospective case series.

A Case Series of the Use of Piezosurgery Instrument for Minimally Invasive Metopic Suturectomy

2021 ◽  
Author(s):  
Ben G McGahan ◽  
Joravar Dhaliwal ◽  
Gregory D Pearson ◽  
Ibrahim Khansa ◽  
Annie I Drapeau
Keyword(s):  
Case Series ◽  
Retrospective Chart Review ◽  
Minimal Invasive ◽  
Surgical Approaches ◽  
Average Weight ◽  
Entire Cohort ◽  
Metopic Suture ◽  
The Many ◽  
Single Suture ◽  
Metopic Craniosynostosis

Abstract BACKGROUND Minimal invasive suturectomy is one of the many surgical approaches to treat isolated single suture craniosynostosis. This approach can be technically challenging in metopic craniosynostosis given the narrow corridor and steep angle of the forehead. New instruments such as the Piezosurgery device (Mectron) have the potential to improve the ability to safely perform minimal invasive surgery in metopic craniosynostosis. OBJECTIVE To demonstrate the safety and efficacy of Piezosurgery technology in minimal invasive suturectomy for nonsyndromic metopic suture craniosynostosis and to describe our technique. METHODS A retrospective chart review was performed of all the single metopic suturectomies performed at our single institution from March 2018 to November 2019. Pre-, intra-, and postoperative data were collected to assess the safety of Piezosurgery. RESULTS The cohort consisted of 12 patients with an average of 95.25 d old and an average weight of 6.2 kg. A total of 91.7% were male, and 91.7% were Caucasian. There were no intraoperative or postoperative Piezosurgery device-related complications in the entire cohort. CONCLUSION The use of the Piezosurgery instrument was safe in this cohort of minimal invasive metopic suturectomy. This device has greatly increased the ease of this procedure in our hands.

PS02.152: DEVELOPMENT OF INTESTINAL PNEUMATOSIS AND PORTAL VENOUS GAS AFTER ESOPHAGECTOMY IS NOT INDICATIVE OF ISCHEMIC BOWEL AND CAN BE SUCCESSFULLY MANAGED NON-OPERATIVELY

2018 ◽  
Vol 31 (Supplement_1) ◽  
pp. 164-164
Author(s):  
Erin Gillaspie ◽  
Micheal Moynagh ◽  
Sameh Said ◽  
Mark Allen ◽  
Shanda Blackmon ◽  
...  
Keyword(s):  
Conflicts Of Interest ◽  
Case Series ◽  
Pneumatosis Intestinalis ◽  
Bowel Ischemia ◽  
Tube Placement ◽  
Jejunostomy Tube ◽  
Radiographic Findings ◽  
Intestinal Pneumatosis ◽  
Ischemic Bowel ◽  
Portal Venous Gas

Abstract Background Pneumatosis intestinalis has long been a marker of advanced bowel ischemia and prompts urgent laparotomy. In post-operative settings, the presence of pneumatosis represents a significant management dilemma. We share a case-series of post-esophagectomy patients with pneumatosis intestinalis and no corollary intra-abdominal pathologic findings on re-exploration. Methods January 2000 to December 2017, 1760 patients underwent Ivor-Lewis esophagectomy or gastrectomy with jejunostomy-tube placement. Charts were reviewed retrospectively to identify patients with pneumatosis intestinalis discovered in the post-operative period. Demographic data, operative details and postoperative course were reviewed including incidence and details of re-exploration. Results Eleven patients met inclusion criteria. Nine were male (81.8%) and mean age was 69 years. All patients had radiographic confirmation of pneumatosis intestinalis and in many cases portal venous gas (Figure 1). Clinical course was variable without discernable trends in vitals or laboratory values. Development of significant postoperative ileus along with delivery of enteral tube feeds through a jejunostomy tube preceded development of the pneumatosis in all patients. Nine patients were re-explored and none had evidence of bowel ischemia. Conclusion The finding of pneumatosis intestinalis in the post-operative setting can be alarming and pose a management dilemma. With the advent of improved and readily available imaging, there has been an increase in findings that have no corollary physical symptomatology. In this series of patients, despite dramatic radiographic findings, none had ischemic bowel. Pneumatosis intestinalis alone in patients who have undergone esophagectomy should not be considered an indication for emergency re-exploration. Disclosure All authors have declared no conflicts of interest.

scholarly journals Magnetic resonance imaging of traumatic injury to the craniovertebral junction: a case-based review

2015 ◽  
Vol 38 (4) ◽  
pp. E3 ◽  
Author(s):  
Anil K. Roy ◽  
_ _ ◽  
Brandon A. Miller ◽  
Christopher M. Holland ◽  
Arthur J. Fountain ◽  
...  
Keyword(s):  
Clinical Judgment ◽  
Clinical Decision Making ◽  
Spinal Column ◽  
Case Series ◽  
Craniovertebral Junction ◽  
Significant Heterogeneity ◽  
Case Review ◽  
Ligamentous Injury ◽  
Mri Findings ◽  
Retrospective Case

OBJECT The craniovertebral junction (CVJ) is unique in the spinal column regarding the degree of multiplanar mobility allowed by its bony articulations. A network of ligamentous attachments provides stability to this junction. Although ligamentous injury can be inferred on CT scans through the utilization of craniometric measurements, the disruption of these ligaments can only be visualized directly with MRI. Here, the authors review the current literature on MRI evaluation of the CVJ following trauma and present several illustrative cases to highlight the utility and limitations of craniometric measures in the context of ligamentous injury at the CVJ. METHODS A retrospective case review was conducted to identify patients with cervical spine trauma who underwent cervical MRI and subsequently required occipitocervical or atlantoaxial fusion. Craniometric measurements were performed on the CT images in these cases. An extensive PubMed/MEDLINE literature search was conducted to identify publications regarding the use of MRI in the evaluation of patients with CVJ trauma. RESULTS The authors identified 8 cases in which cervical MRI was performed prior to operative stabilization of the CVJ. Craniometric measures did not reliably rule out ligamentous injury, and there was significant heterogeneity in the reliability of different craniometric measurements. A review of the literature revealed several case series and descriptive studies addressing MRI in CVJ trauma. Three papers reported the inadequacy of the historical Traynelis system for identifying atlantooccipital dislocation and presented 3 alternative classification schemes with emphasis on MRI findings. CONCLUSIONS Recognition of ligamentous instability at the CVJ is critical in directing clinical decision making regarding surgical stabilization. Craniometric measures appear unreliable, and CT alone is unable to provide direct visualization of ligamentous injury. Therefore, while the decision to obtain MR images in CVJ trauma is largely based on clinical judgment with craniometric measures used as an adjunct, a high degree of suspicion is warranted in the care of these patients as a missed ligamentous injury can have devastating consequences.

scholarly journals Pulmonary Cryptococcosis in the Immunocompetent Patient—Many Questions, Some Answers

2016 ◽  
Vol 3 (3) ◽  
Author(s):  
John F. Fisher ◽  
Paula A. Valencia-Rey ◽  
William B. Davis
Keyword(s):  
Pulmonary Infection ◽  
Case Reports ◽  
Severe Disease ◽  
Case Series ◽  
Immunocompetent Patient ◽  
Pulmonary Cryptococcosis ◽  
Polysaccharide Antigen ◽  
Prospective Data ◽  
Radiographic Findings ◽  
Oral Fluconazole

Abstract Background.  There are no prospective data regarding the management of pulmonary cryptococcosis in the immunocompetent patient. Clinical guidelines recommend oral fluconazole for patients with mild to moderate symptoms and amphotericin B plus flucytosine followed by fluconazole for severe disease. It is unclear whether patients who have histological evidence of Cryptococcus neoformans but negative cultures will even respond to drug treatment. We evaluated and managed a patient whose presentation and course raised important questions regarding the significance of negative cultures, antifungal choices, duration of therapy, and resolution of clinical, serologic, and radiographic findings. Methods.  In addition to our experience, to answer these questions we reviewed available case reports and case series regarding immunocompetent patients with pulmonary cryptococcosis for the last 55 years using the following definitions: Definite - Clinical and/or radiographic findings of pulmonary infection and respiratory tract isolation of C. neoformans without other suspected etiologies; Probable - Clinical and radiographic findings of pulmonary infection, histopathologic evidence of C. neoformans, and negative fungal cultures with or without a positive cryptococcal polysaccharide antigen. Results.  Pulmonary cryptococcosis resolves in most patients with or without specific antifungal therapy. Clinical, radiographic, and serologic resolution is slow and may take years. Conclusions.  Persistently positive antigen titers are most common in untreated patients and may remain strongly positive despite complete or partial resolution of disease. Respiratory fungal cultures are often negative and may indicate nonviable organisms.

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