1.Comparative Clinical and Radiological Outcomes of Banana-Shaped Versus Straight Cages in Biportal Endoscopic Transforaminal Lumbar Interbody Fusion: A Retrospective Cohort Study
Nguyen Ngoc THOI ; Nguyen Le Hoang TUAN ; Le Tuong VIEN ; Nguyen Thanh NHAN ; Hoang Nguyen Anh TUAN ; Nguyen Van THANH ; Tran Nguyen PHUONG ; Bui Hong Thien KHANH
Journal of Minimally Invasive Spine Surgery and Technique 2025;10(2):172-182
Objective:
This study aims to evaluate and compare the clinical and radiological outcomes of biportal endoscopic transforaminal lumbar interbody fusion (BE-TLIF) using banana-shaped versus straight interbody cages. BE-TLIF has emerged as a minimally invasive technique for treating lumbar spondylolisthesis. Banana-shaped and straight cages are the most commonly used cage types in BE-TLIF; however, their relative clinical and radiological outcomes remain unclear.
Methods:
This retrospective cohort study included 34 patients undergoing single-level BE-TLIF from January 2023 to May 2024. Seventeen patients received banana-shaped cages (group A) and 17 received straight cages (group B). Radiological assessments included disc height (DH), segmental lordosis angle (SLA), lumbar lordosis angle, cage position, and subsidence. Clinical outcomes were evaluated using the visual analogue scale (VAS) for back and leg pain and the Oswestry Disability Index (ODI). Fusion status was evaluated at 12 months postoperatively using computed tomography according to the modified Bridwell grading system.
Results:
Both groups demonstrated significant postoperative improvements in VAS and ODI scores, with no statistically significant differences between the groups. Radiological outcomes, including restoration of DH and SLA, were slightly better in the banana-shaped cage group, but this difference did not reach statistical significance. Straight cages were more often placed anteriorly, whereas banana-shaped cages tended to occupy the midlateral position. Fusion rates were comparable (100% vs. 94.1%, p>0.05), and subsidence occurred in 23.5% of cases in both groups.
Conclusion
Despite differences in cage positioning, banana-shaped and straight cages yielded comparable clinical and radiological outcomes in BE-TLIF. Either cage type can be effectively utilized in BE-TLIF, providing flexibility in surgical planning, particularly in resource-limited settings.
2.Some clinical and hematological characteristics of children who had high risk of Acute Lymphoblastic Leukemia (ALL)
Vien Van Bui ; Nam Hoang Nguyen
Journal of Medical Research 2008;55(3):87-93
Background: Acute leukemia is a popular cancer in children, accounting for one third of pediatric malignant diseases. 75% of acute leukemia in children is lymphoblastic leukemia. Objective: To study some clinical and hematological characteristics in juveniles who had high risk with ALL. Subjects and method: The study included 164 patients. This was a prospective, descriptive study. Results: The older children were ones with high risk ALL. The symptoms such as fever, splenomegaly and mediastinal mass in high risk ALL patients were often higher than in the standard risk ALL children. White blood cells and lymphoblasts (80.1 +/- 17.8%) in high risk ALL patients were often higher than in the standard risk ALL children. Reduction of hemoglobin concentration and reticulocyte in high risk ALL patients were lower than in the standard risk ALL children. Conclusion: There were many serious prognostic clinical factors about peripheral blood and bone marrow cells in children with high risk ALL.
Leukemia
;
ALL
;
risk factor
3.Side effects and toxicities of chemotherapy on blood forming organ of children with acute lymphoblastic Leukemia (ALL)
Journal of Medical Research 2007;49(3):10-15
Background: Acute lymphoblastic leukemia (ALL) is the most common cancer in children. Nowadays there have been achievements in treatment for ALL but side effects and toxicities of chemotherapy are still the major causes of death. Objectives: (1) To find out the rate and grades of side effects and toxicities of chemotherapy on blood forming organ of children with ALL ; (2) to study characteristics of toxicity on blood forming organ in phase of chemotherapy. Subjects and methods: 67 patients with ALL were admitted to Hematology and Oncology Departments of National Hospital of Pediatrics and were treated with chemotherapy of CCG (children cancer group) protocol. Grades of myelosuppression were followed by CCG criteria. Results (l) side effects and toxicities on blood forming organ were common and severe: Leucopenia accounted for 95,5% (grades 3 - 4: 83,6%); neutropenia was 100% (grades 3 - 4: 98,5%); thrombocytopenia was 92,5% (grades 3 - 4: 80,6%); anemia accounted for 98,5% (grades 3 - 4: 58,2%); lymphocytopenia was 89,6% (grades 3 - 4: 64,1%); and marked hypocellularity of marrow was 78,8% in the 14th day (grades 3 - 4: 57,4%) but (2) most of them occurred in the first 2 weeks. Conclusion: Side effects and toxicities of chemotherapy on blood forming organ was common and at quite severe levels but mainly occured in the first two weeks\r\n', u'\r\n', u'\r\n', u'
Precursor Cell Lymphoblastic Leukemia-Lymphoma/ blood
4.Haemostatic disorders in children with acute leukemia
Journal of Medical Research 2005;33(1):50-56
Hemorrhagic characters and hemostatic disorders have been investigated in 106 children with acute leukemia at the National Hospital of Pediatrics from September 1st 2002 to August 30th 2004. Results showed that: bleeding signs on admission were found in 49.1%. With subcutaneous hemorrhages, petechie and bruise in skin were most common, and with mucosa hemorrhages, epistaxis and alveolar hemorrhage were more common but gastrointestinal mucosa hemorrhages and urinary hemorrhages were rare. Thrombocytopenia, prolonged APTT, hypofibrinogenemia, hypoprothrombinemia, and disseminated intravascular coagulation accounted for 91.5%, 47.2%, 23.6%, 18.9% and 2.8%, respectively. These disorders were often combined together. Hemorrhagic status related closely with thrombocytopenia. Prolonged APTT, decreased prothrombine rate, and hypofibrinogenemia were contributed to increase of hemorrhagic rate.
Hemostatic Disorders
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Child
;
Leukemia

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