Minimally Invasive Dual Iliac-Screw and Dual-Rod Construct: A Case Report Describing Optimal Subcrestal Iliac-Screw Entry Points in the Surgical Treatment of Metastatic Lumbosacral Fracture

2019 ◽  
Vol 17 (5) ◽  
pp. E219-E223 ◽  
Author(s):  
Gabriel Liu ◽  
Muhammed Yaser Hasan
Keyword(s):  
Minimally Invasive ◽  
Radicular Pain ◽  
Neoplastic Disease ◽  
Spinopelvic Fixation ◽  
Entry Points ◽  
Osseous Involvement ◽  
Iliac Screw ◽  
Additional Stability ◽  
Visual Reference

Abstract BACKGROUND AND IMPORTANCE Dual iliac-screw and dual-rod fixation provides additional stability to lumbopelvic constructs and can be employed in management of neoplastic disease with extensive osseous involvement. Optimal iliac-screw positioning is vital to achieve the desired dual iliac-screw and dual-rod linkage. CLINICAL PRESENTATION In this report, we describe our technique with particular focus on subcrestal iliac-screw entry point position using a 4-quadrant teardrop radiological view concept in a case of minimally invasive L3-iliac spinopelvic fixation using dual iliac-screw and dual-rod for a patient with pathological sacral fracture. At the last follow-up 20 mo postsurgery there was minimal axial and radicular pain and no evidence of screw prominence. Radiographs showed no evidence of construct failure. CONCLUSION The 4-quadrant teardrop concept provides a good visual reference for optimal subcrestal screw placement when employing a dual iliac-screw and dual-construct.

scholarly journals Minimally invasive dual iliac screw, dual rod fixation in a rare case of pathological sacral fracture from a paraganglionoma: a technique description

2017 ◽  
Vol 27 (3) ◽  
pp. 316-320 ◽  
Author(s):  
Muhammed Yaser Hasan ◽  
Gabriel Liu
Keyword(s):  
Minimally Invasive ◽  
Sacral Fracture ◽  
Neoplastic Disease ◽  
First Case ◽  
Screw Breakage ◽  
Iliac Screw ◽  
Additional Stability ◽  
Instrumentation Failure

The management of lumbosacral neoplastic disease can be demanding, often requiring complex reconstruction. In the context of extensive sacral involvement, the risk of iliac screw breakage is greater. Few studies advocate the use of dual iliac screw techniques to reduce implant failure. In this report, the authors have described the first case of percutaneous dual iliac screw, dual rod insertion as part of a minimally invasive spinopelvic stabilization in a patient with a sacral fracture from a paraganglionoma. The patient underwent percutaneous L-2 to ilium fixation. A dual iliac screw, dual rod construct was used for stabilizing the left lumbopelvic junction. At the 1-year follow-up, the patient remained asymptomatic, with radiographs showing no signs of instrumentation failure. Minimally invasive dual iliac screw, dual rod fixation is a viable option in cases in which additional stability is required due to extensive neoplastic disease or active individuals have increased functional demands. Short-term results in this report are encouraging; however, more research is warranted to establish the procedure’s long-term safety.

Low rates of complications after spinopelvic fixation with iliac screws in 260 adult patients with a minimum 2-year follow-up

2019 ◽  
Vol 30 (5) ◽  
pp. 635-643 ◽  
Author(s):  
James H. Nguyen ◽  
Thomas J. Buell ◽  
Tony R. Wang ◽  
Jeffrey P. Mullin ◽  
Marcus D. Mazur ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Wound Dehiscence ◽  
Adult Patients ◽  
Complication Rates ◽  
Related Complication ◽  
Screw Head ◽  
Spinopelvic Fixation ◽  
Iliac Screws ◽  
Iliac Screw

OBJECTIVERecent literature describing complications associated with spinopelvic fixation with iliac screws in adult patients has been limited but has suggested high complication rates. The authors’ objective was to report their experience with iliac screw fixation in a large series of patients with a 2-year minimum follow-up.METHODSOf 327 adult patients undergoing spinopelvic fixation with iliac screws at the authors’ institution between 2010 and 2015, 260 met the study inclusion criteria (age ≥ 18 years, first-time iliac screw placement, and 2-year minimum follow-up). Patients with active spinal infection were excluded. All iliac screws were placed via a posterior midline approach using fluoroscopic guidance. Iliac screw heads were deeply recessed into the posterior superior iliac spine. Clinical and radiographic data were obtained and analyzed.RESULTSTwenty patients (7.7%) had iliac screw–related complication, which included fracture (12, 4.6%) and/or screw loosening (9, 3.5%). No patients had iliac screw head prominence that required revision surgery or resulted in pain, wound dehiscence, or poor cosmesis. Eleven patients (4.2%) had rod or connector fracture below S1. Overall, 23 patients (8.8%) had L5–S1 pseudarthrosis. Four patients (1.5%) had fracture of the S1 screw. Seven patients (2.7%) had wound dehiscence (unrelated to the iliac screw head) or infection. The rate of reoperation (excluding proximal junctional kyphosis) was 17.7%. On univariate analysis, an iliac screw–related complication rate was significantly associated with revision fusion (70.0% vs 41.2%, p = 0.013), a greater number of instrumented vertebrae (mean 12.6 vs 10.3, p = 0.014), and greater postoperative pelvic tilt (mean 27.7° vs 23.2°, p = 0.04). Lumbosacral junction–related complications were associated with a greater mean number of instrumented vertebrae (12.6 vs 10.3, p = 0.014). Reoperation was associated with a younger mean age at surgery (61.8 vs 65.8 years, p = 0.014), a greater mean number of instrumented vertebrae (12.2 vs 10.2, p = 0.001), and longer clinical and radiological mean follow-up duration (55.8 vs 44.5 months, p < 0.001; 55.8 vs 44.6 months, p < 0.001, respectively). On multivariate analysis, reoperation was associated with longer clinical follow-up (p < 0.001).CONCLUSIONSPrevious studies on iliac screw fixation have reported very high rates of complications and reoperation (as high as 53.6%). In this large, single-center series of adult patients, iliac screws were an effective method of spinopelvic fixation that had high rates of lumbosacral fusion and far lower complication rates than previously reported. Collectively, these findings argue that iliac screw fixation should remain a favored technique for spinopelvic fixation.

scholarly journals Surgical management of a cervical intramedullary hemangioblastoma presenting with intracystic hemorrhage by hemi-semi-laminectomy via a posterior approach

2019 ◽  
Vol 47 (7) ◽  
pp. 3458-3464
Author(s):  
Jia Li ◽  
Xiao-Hang Jiang ◽  
Ai-Qin Chen ◽  
Guang-Yu Ying ◽  
Fang Shen ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Cervical Spinal Cord ◽  
Residual Tumor ◽  
Radicular Pain ◽  
Sudden Onset ◽  
Lower Limbs ◽  
Timely Diagnosis ◽  
Postoperative Mri ◽  
Intracystic Hemorrhage

Background and Importance Cervical spinal cord hemangioblastoma with intracystic hemorrhage is a rare entity and presents a challenge for clinicians with regard to its timely diagnosis and appropriate treatment. Case Presentation A 35-year-old man presented with sudden-onset acute and progressive neck pain and severe radicular pain in his left upper limb. Motor weakness and numbness in the left upper and lower limbs with gait ataxia followed 2 days later. His initial diagnosis was acute myelitis, and he was treated with glucocorticoids for 2 weeks. Follow-up contrast-enhanced magnetic resonance imaging (MRI) suggested a spinal cystic hemangioblastoma with intracystic hemorrhage at the C3-4 level. The tumor was totally removed by minimally invasive unilateral hemi-semi-laminectomy via a posterior transcystic approach. The postoperative course was uneventful, and postoperative MRI revealed no residual tumor. The patient showed full neurological recovery at the 1.5-year follow-up, and computed tomography with a volume-rendering technique showed regrowth of the left C3 lamina. Conclusion Close MRI follow-up and thin-section imaging are invaluable for the timely diagnosis of spinal hemangioblastoma with intracystic hemorrhage, which was safely removed via minimally invasive microsurgery in the present case.

scholarly journals Unilateral versus bilateral iliac screws for spinopelvic fixation: are two screws better than one?

2014 ◽  
Vol 36 (5) ◽  
pp. E10 ◽  
Author(s):  
Rajiv Saigal ◽  
Darryl Lau ◽  
Rishi Wadhwa ◽  
Hai Le ◽  
Morsi Khashan ◽  
...  
Keyword(s):  
Postoperative Infection ◽  
Screw Fixation ◽  
Insufficiency Fractures ◽  
Single Institution ◽  
Spinopelvic Fixation ◽  
Iliac Screws ◽  
Iliac Screw ◽  
Sacral Insufficiency Fractures ◽  
The Mean

Object Long-segment spinal instrumentation ending at the sacrum places substantial biomechanical stress on sacral screws. Iliac (pelvic) screws relieve some of this stress by supplementing the caudal fixation. It remains an open question whether there is any clinically significant difference in sacropelvic fixation with bilateral versus unilateral iliac screws. The primary purpose of this study was to compare clinical and radiographic complications in the use of bilateral versus unilateral iliac screw fixation. Methods The authors retrospectively reviewed 102 consecutive spinal fixation cases that extended to the pelvis at a single institution (University of California, San Francisco) in the period from 2005 to 2012 performed by the senior authors. Charts were reviewed for the following complications: reoperation, L5–S1 pseudarthrosis, sacral insufficiency fracture, hardware prominence, iliac screw loosening, and infection. The t-test, Pearson chi-square test, and Fisher exact test were used to determine statistical significance. Results The mean follow-up was 31 months. Thirty cases were excluded: 12 for inadequate follow-up, 15 for lack of L5–S1 interbody fusion, and 3 for preoperative osteomyelitis. The mean age among the 72 remaining cases was 62 years (range 39–79 years). Forty-six patients underwent unilateral and 26 bilateral iliac screw fixation. Forty-one percent (n = 19) of the unilateral cases and 50% (n = 13) of the bilateral cases were treated with reoperation (p = 0.48). In addition, 13% (n = 6) of the unilateral and 19% (n = 5) of the bilateral cases developed L5–S1 pseudarthrosis (p = 0.51). There were no sacral insufficiency fractures. Thirteen percent (n = 6) of the unilateral and 7.7% (n = 2) of the bilateral cases developed postoperative infection (p = 0.70). Conclusions In a retrospective single-institution study, single versus dual pelvic screws led to comparable rates of reoperation, iliac screw removal, postoperative infection, pseudarthrosis, and sacral insufficiency fractures. For spinopelvic fixation, placing bilateral (vs unilateral) pelvic screws produced no added clinical benefit in most cases.

Minimally Invasive Transaortic Repair of the Mitral Valve

2011 ◽  
Vol 14 (4) ◽  
pp. 232 ◽  
Author(s):  
Orlando Santana ◽  
Joseph Lamelas
Keyword(s):  
Mitral Valve ◽  
Aortic Valve ◽  
Mitral Regurgitation ◽  
Aortic Valve Replacement ◽  
Minimally Invasive ◽  
Valve Replacement ◽  
Operative Mortality ◽  
The Mean ◽  
Transaortic Approach

<p><b>Objective:</b> We retrospectively evaluated the results of an edge-to-edge repair (Alfieri stitch) of the mitral valve performed via a transaortic approach in patients who were undergoing minimally invasive aortic valve replacement.</p><p><b>Methods:</b> From January 2010 to September 2010, 6 patients underwent minimally invasive edge-to-edge repair of the mitral valve via a transaortic approach with concomitant aortic valve replacement. The patients were considered to be candidates for this procedure if they were deemed by the surgeon to be high-risk for a double valve procedure and if on preoperative transesophageal echocardiogram the mitral regurgitation jet originated from the middle portion (A2/P2 segments) of the mitral valve.</p><p><b>Results:</b> There was no operative mortality. Mean cardiopulmonary bypass time was 137 minutes, and mean cross-clamp time was 111 minutes. There was a significant improvement in the mean mitral regurgitation grade, with a mean of 3.8 preoperatively and 0.8 postoperatively. The ejection fraction remained stable, with mean preoperative and postoperative ejection fractions of 43.3% and 47.5%, respectively. Follow-up transthoracic echocardiograms obtained at a mean of 33 days postoperatively (range, 8-108 days) showed no significant worsening of mitral regurgitation.</p><p><b>Conclusion:</b> Transaortic repair of the mitral valve is feasible in patients undergoing minimally invasive aortic valve replacement.</p>

scholarly journals Minimally-invasive mitral valve repair of symmetric and asymmetric Barlow´s disease

2021 ◽  
Author(s):  
Gloria Faerber ◽  
Sophie Tkebuchava ◽  
Mahmoud Diab ◽  
Christian Schulze ◽  
Michael Bauer ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Minimally Invasive ◽  
Wide Spectrum ◽  
Mitral Valve Surgery ◽  
Valve Repair ◽  
Prolapse Repair ◽  
Repair Rate ◽  
Barlow’S Disease ◽  
Increased Risk

Abstract Objectives Barlow´s disease represents a wide spectrum of mitral valve pathologies associated with regurgitation (MR), excess leaflet tissue, and prolapse. Repair strategies range from complex repairs with annuloplasty plus neochords through resection to annuloplasty-only. The latter requires symmetric prolapse patterns and central regurgitant jets. We aimed to assess repair success and durability, survival, and intraoperative outcomes with symmetric and asymmetric Barlow’s disease. Methods Between 09/10 and 03/20, 103 patients (of 1939 with mitral valve surgery) presented with Barlow´s disease. All received surgery through mini-thoracotomy with annuloplasty plus neochords (n = 71) or annuloplasty-only (n = 31). One valve was replaced for endocarditis (repair rate: 99%). Results Annuloplasty-only patients were older (64 ± 16 vs. 55 ± 11 years, p = 0.008) and presented with higher risk (EuroSCORE II: 4.2 ± 4.9 vs. 1.6 ± 1.7, p = 0.007). Annuloplasty-only patients had shorter cross-clamp times (53 ± 18 min vs. 76 ± 23 min, p < 0.001) and received more tricuspid annuloplasty (15.5% vs. 48.4%, p < 0.001). Operating times were similar (170 ± 41 min vs. 164 ± 35, p = 0.455). In three patients, annuloplasty-only caused intraoperative systolic anterior motion (SAM), which was fully resolved by neochords to the posterior leaflet. There were no conversions to sternotomy or deaths at 30-days. Three patients required reoperation for recurrent MR (at 25 days, 2.8 and 7.8 years). At the latest follow-up, there was no MR in 81.4%, mild in 14.7%, and moderate in 2.9%. Three patients died due to non-cardiac reasons. Surviving patients report the absence of relevant symptoms. Conclusions Minimally-invasive Barlow’s repair is safe with good durability. Annuloplasty-only may be a simple solution for complex but symmetric pathologies. However, it may carry an increased risk of intraoperative SAM.

scholarly journals Minimally invasive debridement and drainage using intraoperative CT-Guide in multilevel spondylodiscitis: a long‐term follow‐up study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Jianbiao Xu ◽  
Leiming Zhang ◽  
Rongqiang Bu ◽  
Yankang Liu ◽  
Kai-Uwe Lewandrowski ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Clinical Manifestations ◽  
Operation Time ◽  
Intervertebral Discs ◽  
Intraoperative Ct ◽  
Long Term Follow Up ◽  
Invasive Method ◽  
Vertebral Bodies ◽  
Adjacent Segments

Abstract Background Spondylodiscitis is an unusual infectious disease, which usually originates as a pathogenic infection of intervertebral discs and then spreads to neighboring vertebral bodies. The objective of this study is to evaluate percutaneous debridement and drainage using intraoperative CT-Guide in multilevel spondylodiscitis. Methods From January 2002 to May 2017, 23 patients with multilevel spondylodiscitis were treated with minimally invasive debridement and drainage procedures in our department. The clinical manifestations, evolution, and minimally invasive debridement and drainage treatment of this refractory vertebral infection were investigated. Results Of the enrolled patients, the operation time ranged from 30 minutes to 124 minutes every level with an average of 48 minutes. Intraoperative hemorrhage was minimal. The postoperative follow-up period ranged from 12 months to 6.5 years with an average of 3.7 years. There was no reactivation of infection in the treated vertebral segment during follow-up, but two patients with fungal spinal infection continued to progress by affecting adjacent segments prior to final resolution. According to the classification system of Macnab, one patient had a good outcome at the final follow-up, and the rest were excellent. Conclusions Minimally invasive percutaneous debridement and irrigation using intraoperative CT-Guide is an effective minimally invasive method for the treatment of multilevel spondylodiscitis.

scholarly journals 689 Silac (Sinus Laser-Assisted Closure) For Pilonidal Sinus: Our NHS Experience

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
S Kalaskar ◽  
J Adamek
Keyword(s):  
Minimally Invasive ◽  
Success Rate ◽  
Pilonidal Disease ◽  
Surgical Excision ◽  
Pilot Project ◽  
Invasive Technique ◽  
Recurrence Rates ◽  
Pilonidal Cyst ◽  
Primary Wound Closure

Abstract Introduction The accepted treatment of pilonidal disease still consists of surgical excision with primary wound closure. This treatment has complications such as excessive pain, delayed wound healing, and recurrence. We introduced this technique using a radial laser probe (SiLaCTM, Biolitec, Germany). Previous studies have shown encouraging results with respect to safety, patient satisfaction, and minimal recurrence rates. Method The pilot project was planned with the objectives to assess postoperative complications and reoperation rates. All operations were performed as day case procedures under general anaesthesia. We studied the data of our first 25patients operated with this technique between January 2019 and December 2019 using a prospective database and outpatient clinic follow up. Results The median follow up duration was 13 months. The initial success rate was 64%(16/25), reoperation was required in 32%(8/25) and one patient was lost to follow up. one patient returned with abscess formation in the postoperative period. Conclusions SiLaC is a safe and minimally invasive technique for the destruction of the pilonidal cyst and sinus. The success rate is modest, making this new therapy a minimally invasive option for the majority of the patients with pilonidal disease but it should be offered with caution.

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