Comparison of Clinical and Radiologic Outcome of Adolescent Idiopathic Scoliosis Treated with Hybrid Hook-Screw Instrumentation versus Universal Clamp System

Background. In surgical treatment of adolescent idiopathic scoliosis (AIS), hybrid universal clamp system has been used by some authors. We aimed to compare the clinical and radiologic outcome of hybrid universal clamp with hybrid thoracic hook lumbar screw. Methods. A prospective study was performed on 56 consecutive patients with AIS, who had alternatively undergone a posterior spinal fusion and instrumentation with hybrid thoracic hook lumbar screw system (28 patients: group A) and hybrid universal clamp system (28 patients: group B) between June 2006 and January 2014 at Imam Reza University Hospital and had been followed up for more than two years. The comparison was according to radiographic changes, operative time, intraoperative blood loss, complications, and Scoliosis Research Society (SRS-22) outcome scores. Results. The preoperative mean curve Cobb angle was 58°±7° (42°–74°) in group A and 60°±9° (46°–75°) in group B. The mean final coronal curve correction was 60.4% and 75.5% in groups A and B, respectively (P=0.001). Postoperative SRS outcome scores were also comparable. Conclusion. Universal clamp instrumentation had a significantly better curve correction and lower complication rate compared with hybrid thoracic hook lumbar screw. Both instrumentation methods had similar operative time, intraoperative blood loss, and postoperative SRS outcome scores.

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Plasma Technology Reduces Blood Loss in Adolescent Idiopathic Scoliosis Surgery: A Prospective Randomized Clinical Trial

Global Spine Journal ◽

10.1177/2192568220928344 ◽

2020 ◽

pp. 219256822092834

Author(s):

Andrea Piazzolla ◽

Davide Bizzoca ◽

Giuseppe Solarino ◽

Claudia Parato ◽

Biagio Moretti

Keyword(s):

Clinical Trial ◽

Adolescent Idiopathic Scoliosis ◽

Blood Loss ◽

Idiopathic Scoliosis ◽

Randomized Clinical Trial ◽

Intraoperative Blood Loss ◽

Prospective Randomized Clinical Trial ◽

Group A ◽

Bipolar Sealer ◽

Group B

Study Design: Prospective randomized clinical trial. Objectives: To assess the effectiveness of PEAK Plasmablade (PPB), compared with bipolar sealer and standard electrocautery, in the posterior spinal instrumentation and fusion (PSF) surgery performed for adolescent idiopathic scoliosis (AIS). Methods: Ninety-three patients undergoing PSF surgery for AIS were randomized in 2 groups: group-A patients (n = 45) underwent PSF surgery using PPB; group-B patients (n = 48) were treated with bipolar sealer and standard electrocautery. Demographic and surgical data was recorded. All the patients underwent serial blood tests on the day before surgery (T0) and at 24 (T1), 48 (T2), 72 (T3), and 96 (T4) hours postoperatively. Visual analogue scale for pain (VAS) score, the percentage of paracetamol assumption, and the blood transfusion rate were recorded in the time-lapse T1 to T4. Intergroup variability was assessed. Pearson correlation test was performed. A P value <.05 was considered significant. Results: In group A, a significantly shorter total operative time ( P = .0087), a significantly lower total intraoperative blood loss (TBL) ( P = .001), and a higher postoperative hemoglobin (Hb) ( P = .01) were recorded. A significant higher mean Hb concentration and mean albumin value was recorded in group A at 24 and 48 hours postoperatively. A significant correlation between TBL and hospital stay was recorded in both groups (group A, P = .00 001; group B, P = .00 006); moreover, in both groups, a significant correlation was observed between TBL and mean VAS at 72 hours postoperatively (group A, P = .0009; group B, P = .0001) and at 96 hours postoperatively (group A, P = .000 044; group B, P = .00 001). Conclusions: PPB reduces the intraoperative blood loss in PSF performed for AIS, thus allowing a patient’s faster recovery.

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Efficacy of Routine Intraoperative Cranio-Femoral Traction in Surgical Treatment of Adolescent Idiopathic Scoliosis Curves Measuring Between 50° and 90°

Global Spine Journal ◽

10.1177/21925682211052969 ◽

2021 ◽

pp. 219256822110529

Author(s):

Jacob R. Carl ◽

Gurpal Pannu ◽

Evan Cherng-Yeh Chua ◽

Adam Bacon ◽

Blythe Durbin-Johnson ◽

...

Keyword(s):

Surgical Treatment ◽

Adolescent Idiopathic Scoliosis ◽

Blood Loss ◽

Idiopathic Scoliosis ◽

Revision Surgery ◽

Operative Time ◽

Curve Correction ◽

Major Curve ◽

Estimated Blood Loss ◽

Retrospective Comparative Study

Study Design Retrospective Comparative Study, Level III. Objective In patients with scoliosis >90°, cranio-femoral traction (CFT) has been shown to obtain comparable curve correction with decreased operative time and blood loss. Routine intraoperative CFT use in the treatment of AIS <90° has not been established definitively. This study investigates the effectiveness of intraoperative CFT in the treatment of AIS between 50° and 90°, comparing the magnitude of curve correction, blood loss, operative time, and traction-related complications with and without CFT. Methods 73 patients with curves less than 90° were identified, 36 without and 37 with cranio-femoral traction. Neuromuscular scoliosis and revision surgery were excluded. Age, preoperative Cobb angles, bending angles, and curve types were recorded. Surgical characteristics were analyzed including number of levels fused, estimated blood loss, operative time, major curve correction (%), and degree of postoperative kyphosis. Results Patients with traction had significantly higher preoperative major curves but no difference in age or flexibility. Lenke 1 curves had significantly shorter operative time and improvement in curve correction with traction. Among subjects with 5 to 8 levels fused, subjects with traction had significantly less EBL. Operative time was significantly shorter for subjects with 5-8 levels and 9-11 levels fused. Curves measuring 50°-75° showed improved correction with traction. Conclusion Intraoperative traction resulted in shorter intraoperative time and greater correction of major curves during surgical treatment of adolescent idiopathic scoliosis less than 90°. Strong considerations should be given to use of intraoperative CFT for moderate AIS.

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Predictive factors for intraoperative blood loss in surgery for adolescent idiopathic scoliosis

BMC Musculoskeletal Disorders ◽

10.1186/s12891-021-04104-z ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Chris Yuk Kwan Tang ◽

Vijay H. D. Kamath ◽

Prudence Wing Hang Cheung ◽

Jason Pui Yin Cheung

Keyword(s):

Adolescent Idiopathic Scoliosis ◽

Blood Loss ◽

Idiopathic Scoliosis ◽

Spinal Fusion ◽

Predictive Factors ◽

Posterior Spinal Fusion ◽

Male Gender ◽

Intraoperative Blood Loss ◽

Operative Blood Loss ◽

Operation Duration

Abstract Background Adolescent idiopathic scoliosis (AIS) is a common spinal deformity. Posterior spinal fusion remains an important surgical treatment for AIS. This study aims to determine the predictive factors for intraoperative blood loss in AIS surgery. Methods Patients who had undergone posterior spinal fusion for adolescent idiopathic scoliosis in a single university hospital were reviewed over a 7-year period. Predictive factors for intra-operative blood loss were studied by multivariate analysis to derive a regression model. Receiver operating characteristic analysis was performed to determine the cut-off values of factors contributing to significant intraoperative blood loss (≥500 ml). Results Two hundred and twelve patients were included. Intraoperative blood loss was found to be correlated with gender (rs = 0.30 (0.17–0.43)), preoperative hemoglobin level (rs = 0.20 (0.04–0.31)), preoperative Cobb angle (rs = 0.20 (0.02–0.29)), number of fused levels (rs = 0.46 (0.34–0.58)), operation duration (rs = 0.65 (0.54–0.75)), number of anchors (rs = 0.47 (0.35–0.59)), and p-value ranged from < 0.001 to < 0.05. Significant intraoperative blood loss was influenced by the male gender, operation duration greater than 257.5 min and more than 10 anchors used. Conclusions Male gender, increased operation duration and higher number of anchors predicted higher intra-operative blood loss.

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Uniplanar cannulated pedicle screws in the correction of Lenke type 1 adolescent idiopathic scoliosis (AIS)

10.21203/rs.3.rs-34233/v1 ◽

2020 ◽

Author(s):

Yiwei Zhao ◽

Wubo Liu ◽

Suomao Yuan ◽

Yonghao Tian ◽

Xinyu Liu

Keyword(s):

Adolescent Idiopathic Scoliosis ◽

Idiopathic Scoliosis ◽

Pedicle Screws ◽

Vertebral Rotation ◽

Concave Side ◽

Convex Side ◽

X Rays ◽

Group A ◽

Group B

Abstract Background In the present study, we reported the clinical use of uniplanar cannulated pedicle screws for the correction of Lenke type 1 adolescent Idiopathic scoliosis (AIS), and its safety and clinical outcomes were also evaluated. Methods 68 patients with Lenke type 1 AIS were included, among which 38 patients were treated with uniplanar cannulated screws at the concave side of periapical levels and multiaxial screws at the other levels (group A). Moreover, the remaining 30 patients were treated with all multiaxial screws (group B). The preoperative and postoperative radiographic parameters of the Lenke type 1 AIS, axial vertebral rotation, and the safety of the pedicle screws were evaluated by X-rays and computed tomography (CT). Results Preoperative data was comparable between two groups. The postoperative proximal thoracic (PT) curve, main thoracic (MT) curve, thoracolumbar/lumbar (TL/L) curve, and apical vertebral rotation were significantly improved compared with the preoperative data. The coronal correction rates in group A and B were 83% and 81.9%, respectively (P > 0.05). The derotation rates in group A and B were 60.8% and 43.2%, respectively (P < 0.05). The rotation classification in the group A was also better compared with the group B. The misplacement rate in group A and B was 7.9% and 11.8%, respectively (P < 0.05), and the total misplacement rate on the concave side (11.4%) was higher than that of convex side (8.4%). The lateral perforation was found at the concave side, while the medial perforation was found at the convex side. On the concave side, the misplacement rate in group A and B was 9.7% and 12.3%, respectively (P < 0.05). The grades 2 and 3 perforations were three (3.5%) in the group A and eight (8.2%) in the group B (P < 0.05). On the convex side, the misplacement rate in group A and B was 5.9% and 11.1%, respectively (P < 0.05). The grades 2 and 3 perforations were one (0.9%) in the group A and four (4.4%) in the group B (P < 0.05). Conclusion Collectively, uniplanar cannulated pedicle screws could effectively increase the accuracy of pedicle screws and facilitate the derotation of the apical vertebra compared with the multiaxial pedicle screws. Trial registration retrospectively registered

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Effect of Intraoperative Blood Loss on Perioperative Complications and Neurological Outcome in Adult Patients Undergoing Elective Brain Tumor Surgery

Journal of Neurosciences in Rural Practice ◽

10.1055/s-0039-3399487 ◽

2019 ◽

Vol 10 (04) ◽

pp. 631-640 ◽

Cited By ~ 1

Author(s):

Vanitha Rajagopalan ◽

Rajendra Singh Chouhan ◽

Mihir Prakash Pandia ◽

Ritesh Lamsal ◽

Girija Prasad Rath

Keyword(s):

Brain Tumor ◽

Blood Loss ◽

Blood Volume ◽

Perioperative Complications ◽

Tumor Surgery ◽

Intraoperative Blood Loss ◽

Brain Tumor Surgery ◽

Group A ◽

Group B ◽

Group D

Abstract Background Major blood loss during neurosurgery can lead to several complications, including life-threatening hemodynamic instabilities. Studies addressing these complications in patients undergoing intracranial tumor surgery are limited. Materials and Methods During the study period, 456 patients who underwent elective craniotomy for brain tumor excision were categorized into four groups on the basis of estimated intraoperative blood volume loss: Group A (<20%), Group B (20–50%), Group C (>50–100%), and Group D (more than estimated blood volume). The occurrence of various perioperative complications was correlated with these groups to identify if there was any association with the amount of intraoperative blood loss. Results The average blood volume loss was 11% ± 5.3% in Group A, 29.8% ± 7.9% in Group B, 68.3% ± 13.5% in Group C, and 129.1% ± 23.9% in Group D. Variables identified as risk factors for intraoperative bleeding were female gender (p < 0.001), hypertension (p = 0.008), tumor size >5 cm (p < 0.001), high-grade glioma (p = 0.004), meningioma (p < 0.001), mass effect (p = 0.002), midline shift (p = 0.014), highly vascular tumors documented on preoperative imaging (p < 0.001), extended craniotomy approach (p = 0.002), intraoperative colloids use >1,000 mL (p < 0.001), intraoperative brain bulge (p = 0.03), intraoperative appearance as highly vascular tumor (p < 0.001), and duration of surgery >300 minutes (p < 0.001). Conclusions Knowledge of these predictors may help anesthesiologists anticipate major blood loss during brain tumor surgery and be prepared to mitigate these complications to improve patient outcome.

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Comparison of Conventional Fenestration Discectomy Versus Percutaneous Transforaminal Endoscopic Discectomy for Treating Lumbar Disc Herniation

10.21203/rs.3.rs-20662/v1 ◽

2020 ◽

Author(s):

Quanyi Li ◽

yongchun zhou

Keyword(s):

Blood Loss ◽

Hospital Stay ◽

Lumbar Disc Herniation ◽

Disc Herniation ◽

Lumbar Disc ◽

Intraoperative Blood Loss ◽

Endoscopic Discectomy ◽

Percutaneous Transforaminal Endoscopic Discectomy ◽

Group A ◽

Group B

Abstract Purpose: To compare the efficacy of conventional interlaminar fenestration discectomy (IFD) versus percutaneous transforaminal endoscopic discectomy (PTED) for treating lumbar disc herniation (LDH). Methods: The clinical data of 1,100 patients who had been diagnosed with LDH from January 2012 to December 2017 were retrospectively analysed. IFD was performed on the 605 patients in Group A, while PTED was performed on the 505 patients in Group B. The Oswestry Disability Index (ODI), Visual Analogue Scale (VAS) for pain, and modified Macnab criteria were adopted to evaluate the outcomes. Moreover, the surgery durations, intraoperative blood loss, postoperative off-bed activities, and postoperative lengths of hospital stay for the two groups were observed. Results: The follow-up period ranged from 24 months to 60 months, with an average duration of 43 months. As the excellent and good outcome rate was 93.5% in Group A and 92.6% in Group B, there were no significant differences in efficacy between the two groups (P > 0.05). However, Group B had significantly less intraoperative blood loss and shorter bed rest durations and postoperative lengths of hospital stay than did Group A (P < 0.05). There were two cases of postoperative recurrence in Group A and three in Group B. Conclusions: Although conventional IFD and PTED had similar levels of efficacy in treating LDH, transforaminal endoscopic discectomy exhibited several advantages, such as less trauma, less bleeding, and a shorter length of hospital stay, and it can be considered an ideal surgical option for treating LDH.Save and Continue

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TONSILLECTOMY IN PAEDIATRIC POPULATION

The Professional Medical Journal ◽

10.29309/tpmj/2016.23.04.1540 ◽

2016 ◽

Vol 23 (04) ◽

pp. 499-503

Author(s):

Raheel Ahmad ◽

Farhan Salam ◽

Abdul Saeed Khan ◽

Faisal Bashir ◽

Atif Rafique

Keyword(s):

Standard Deviation ◽

Blood Loss ◽

Operative Time ◽

Controlled Trial ◽

Operation Time ◽

Group A ◽

Group B ◽

Cold Steel Dissection ◽

Cold Dissection ◽

Dissection Method

Objectives: To compare mean operative time and Intra operative blood lossbetween bipolar electro dissection and cold dissection tonsillectomy in paediatric population.Study Design: Randomized controlled trial. Place and Duration: Department of ENT and Headand Neck Surgery, Continental Medical College, Hospital Lahore, from 1 January 2015 to 30September 2015. Materials and Methods: This study included 164 patients of age group 4 to12 years of either gender undergoing tonsillectomy. The patients were divided into two equalgroups designated as A and B each having 82 patients using simple random sampling. Patientsin group A were operated for tonsillectomy by bipolar electrocautry while group B underwenttonsillectomy by cold steel dissection method. All patients in both groups were assessed foroperating time and intra-operative blood loss. Results: Out of 82 cases of Bipolar DissectionGroup 49(60%) patients were male and 33(40%) patients were female. Whereas in 82 casesof Cold Dissection Group 51(62%) patients were male and 31(38%) patients were female.Mean age of patients was 7.2(SD ± 1.97) years. Mean operation time was 15 minutes withstandard deviation ± 1.21 in group A as compared to group B where mean operation time was20 minutes with standard deviation ± 1.87. Mean blood loss was 7 ml with standard deviation± 2.53 in patients of group A as compared to Patients in group B who mean blood loss of 30ml with standard deviation ± 3.46. Group A had statistically significant lower operative time andblood loss than group B. Conclusion: Tonsillectomy with bipolar electro dissection method ismuch better than cold steel dissection method. It has an advantage of less blood loss duringsurgery. It significantly reduces intra operative time.

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Single Intravenous Bolus versus Continuous Infusion of Tranexamic Acid to Reduce Blood Loss in Transurethral Resection of Prostate: a Prospective Randomized Double-Blind Study

QJM ◽

10.1093/qjmed/hcab086.026 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Safaa I Ghaly ◽

Marwa A Khairy ◽

Mohamed M Kamal ◽

Eman A Mohammed

Keyword(s):

Blood Loss ◽

Tranexamic Acid ◽

Transurethral Resection ◽

Bolus Dose ◽

Transurethral Resection Of Prostate ◽

Intraoperative Blood Loss ◽

Operative Blood Loss ◽

Single Bolus Dose ◽

Group A ◽

Group B

Abstract Background and aim Intraoperative use of a single bolus dose of tranexamic acid may not be sufficient to prevent bleeding in the early postoperative period. The present study was carried out to compare the effect of two dose regimens of tranexamic acid in reducing perioperative blood loss and the amount of allogeneic blood transfusion in transurethral resection of prostate. Design prospective, double-blinded and controlled study. Setting Ain Shams University Hospital, Patients and Methods 50 patients electively posted for transurethral resection of prostate were randomly assigned to receive a single bolus dose of tranexamic acid (10 mg/kg) (Group A), a bolus dose of tranexamic acid (10 mg/kg) followed by infusion (1 mg/kg/h) till 4 h postoperatively (Group B). Measurements Total intraoperative blood loss, amount of allogeneic blood transfusion, postoperative drain collections, and hemoglobin and hematocrit levels were recorded at different time intervals. Data obtained after comparing two groups were analyzed using the statistical package for social sciences. Results There was no statistically significant difference among patients in both groups regarding intraoperative blood loss and postoperative blood loss at 6 hrs and 48 hrs postoperatively. However the post-operative blood loss at 24 hrs was significantly higher among patients in group A than patients in group B (P-value= 0.014) . Conclusion Tranexamic acid causes more effective reduction in post-operative blood loss when used as a bolus followed by an infusion continued in the postoperative period in comparison to its use as a single intravenous bolus in transurethral resection of prostate.

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Outcomes of Thoracolumbar Burst Fracture in Patients With Osteoporosis Without Neurologic Symptoms: Analysis of Three Different Surgical Approaches

Journal of Biomaterials and Tissue Engineering ◽

10.1166/jbt.2019.2111 ◽

2019 ◽

Vol 9 (8) ◽

pp. 1052-1057

Author(s):

Tao Li ◽

Yonghong Zheng ◽

Zhengwei Xu ◽

Dingjun Hao ◽

Lixiong Qian

Keyword(s):

Blood Loss ◽

Internal Fixation ◽

Hospital Stay ◽

Burst Fracture ◽

Surgical Approaches ◽

Intraoperative Blood Loss ◽

Thoracolumbar Burst Fracture ◽

Neurologic Symptoms ◽

Group A ◽

Group B

This study aimed to compare the outcomes of thoracolumbar burst fractures in patients with osteoporosis without neurologic symptoms according to the surgical approach. The patients in group A underwent percutaneous balloon kyphoplasty, those in group B underwent minimally invasive percutaneous reduction and internal fixation, and those in group C underwent open reduction with bone graft fusion and internal fixation. Fracture reduction was assessed by X-ray. The operative time in group A was shorter than that in groups B and C, with less intraoperative blood loss and shorter hospital stay. The intraoperative blood loss was less in group B than in group C, with shorter hospital stay. The postoperative visual analog scale scores were lower than the preoperative scores in each group. Cobb's angle of the injured vertebra in the last follow-up was larger in group A than in groups B and C. Regarding complications, in group A, nine patients developed postoperative bone cement leakage that required no specific treatment. In group B, one patient developed subcutaneous hematoma that healed well after treatment. The screw channel was loosened in two patients without symptoms; the screws were removed 1 year later. In group C, delayed incision healing was found in five patients. All three surgical approaches safely and effectively relieved the lower back pain in patients with thoracolumbar burst fracture with osteoporosis but without neurologic symptoms.

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Intramedullary nailing for pertrochanteric fractures of proximal femur: a consecutive series of 323 patients treated with two devices

Journal of Orthopaedic Surgery and Research ◽

10.1186/s13018-019-1506-1 ◽

2019 ◽

Vol 14 (1) ◽

Cited By ~ 1

Author(s):

Pompeo Catania ◽

Daniele Passaretti ◽

Giorgio Montemurro ◽

Simone Ripanti ◽

Stefano Carbone ◽

...

Keyword(s):

Blood Loss ◽

Age Distribution ◽

Harris Hip Score ◽

Consecutive Series ◽

Intraoperative Blood Loss ◽

Pertrochanteric Fractures ◽

Functional Scores ◽

Group A ◽

Group B

Abstract Introduction Pertrochanteric fractures (PFs) frequently affect the lower limb of osteoporotic patients and represent an important cause of morbidity and mortality in the elderly. In this prospective randomized controlled trial, we have compared functional and radiological results and complications of patients affected by PFs treated with two intramedullary proximal femoral nails. Materials We enrolled 323 subjects with PFs, classified according to AO/OTA system as 31.A1 (pertrochanteric simple) and 31.A2 (pertrochanteric multifragmentary). Patients were divided into two groups according to the osteosynthesis devices: group A, Elos-Intrauma® nail (155 cases) and group B, Gamma 3-Stryker® nail (168 cases). Pre-operatively, the baseline characteristics of each patient (gender, age, weight and BMI) were collected. Intraoperative blood loss, subjective pain by visual analogue scale (VAS), esthetic satisfaction, functional scores of the hip by Harris Hip Score (HHS), and Western Ontario and McMaster Universities Arthritis Index (WOMAC) were noted. The post-operative degree of fracture reduction was assessed. Each patient had a minimum follow-up of 12 months. Results The study group was composed of 106 male and 217 female with an average age of 85.4 (range, 65–90, standard deviation (SD) 5.95) years. No statistical differences about sex and age distribution were noted between the two groups. Group A reported lower intraoperative blood loss, 45 ml vs 51 ml, respectively (p < 0.001). There was not any statistical difference about operative time. Group A had a better reduction of fracture (p = 0.0347). The greatest difference was detectable comparing subgroups 31.A2 (p = 0.032). There were no statistical differences about complication frequency and the overall rate was 25% (80 cases). Finally, there was no difference in terms of VAS, HHS, and WOMAC score between the two groups on each follow-up. Patients of group A showed a higher subjective satisfaction index at 1 post-operative year, 7.42 (SD 1.19) vs 6.45 (SD 1.35) of group B (p < 0.001). Conclusion Elos® nail is a reliable device on a short-term follow-up and represents an alternative choice to the Gamma 3® nail, a well-known and appreciated system for over 25 years.

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