The Accuracy of Patient Specific Three-Dimensional Digital Ostectomy Template for Mandibular Angle Ostectomy

2021 ◽  
Author(s):  
Guoping Wu ◽  
Zhiyang Xie ◽  
Wensong Sahngguan ◽  
Wenwen Zhang ◽  
Shu Wang ◽  
...  
Keyword(s):  
Operating Time ◽  
Three Dimensional ◽  
Patient Specific ◽  
Mandibular Angle ◽  
Significant Difference ◽  
Postoperative Drainage ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Mean Time

Abstract Background Despite the three-dimensional (3D)-printed digital ostectomy template (DOT) helps surgeons perform mandibular angle ostectomy (MAO) more precisely and safely, the clinical application of DOT is problematic. Objectives The aim of this study was to evaluate the accuracy of DOT and improve the precision of MAO. Methods A total of 20 patients with a prominent mandibular angle (PMA) were allocated into two groups with 10 patients in each group. The conventional digital ostectomy template (CDOT), and the novel digital ostectomy template (NDOT) were applied to guide MAO in group A and B, respectively. The mean time taken for curved osteotomy and the volume of postoperative drainage on one side within 24 hours were recorded. The deviations between the simulated and postoperative lower border of the mandible were measured on both sides. Results All the patients were satisfied with the cosmetic outcomes. Statistical results showed that the mean time taken for curved osteotomy in group B was shorter than that of group A, and the volume of postoperative drainage on one side within 24 hours was similar between the two groups. The deviations at the anterior and posterior parts of the inferior border showed the accuracy of osteotomy in group B was higher than that in group A, and there was no significant difference between the two groups in the middle part. Conclusions The NDOT is easy to be located and fixed tightly, which reduced the operating time and increased the safety and precision of the procedures.

scholarly journals The use of folic acid in dengue: has it any value?

2019 ◽  
Vol 49 (2) ◽  
pp. 85-87 ◽  
Author(s):  
Ahsan Ali Syed ◽  
Saad Bin Zafar ◽  
Asif Ali Shah ◽  
Safia Awan
Keyword(s):  
Folic Acid ◽  
Medical Records ◽  
Dengue Infection ◽  
Inclusion Criteria ◽  
Time Period ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Mean Time

Folic acid is used in dengue patients. Our study aims to compare the duration of recovery of thrombocytopenia in patients with dengue infection who received folic acid and those who did not. We retrospectively reviewed the medical records of adult patients admitted over six years with a diagnosis of dengue. Of 2216 patients, 1464 fulfilled the inclusion criteria. Group A were those patients who received folic acid and group B were those who did not. A total of 1322 (90.3%) patients received folic acid. The mean time period required for platelets to double the nadir was 1.7 (±2.2) days in both groups A and B ( P = 0.89). In conclusion, there is no significant difference in the recovery of thrombocytopenia in patients with dengue fever who received folic and those who did not receive folic acid.

scholarly journals Comparison of microdebrider-assisted endoscopic sinus surgery and conventional endoscopic sinus surgery for chronic rhinosinusitis with nasal polyps

2019 ◽  
Vol 9 (34) ◽  
pp. 91-95
Author(s):  
Ramiya Ramachandran Kaipuzha ◽  
Nirmal Coumare Venkataramanujam ◽  
Padmanabhan Karthikeyan ◽  
Davis Thomas Pulimoottil
Keyword(s):  
Endoscopic Sinus Surgery ◽  
Mucosal Injury ◽  
Sinus Surgery ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Mean Time ◽  
Sinonasal Polyposis

AbstractOBJECTIVE. To study and compare the benefits of microdebrider-assisted endoscopic sinus surgery and conventional endoscopic sinus surgery in terms of subjective and objective improvement in symptoms of nasal polyposis.MATERIAL AND METHODS. This study involved 60 patients with bilateral sinonasal polyposis scheduled to undergo Endoscopic Sinus Surgery. The patients were randomized into two groups: Group A -Conventional endoscopic sinus surgery and Group B -Microdebrider-assisted endoscopic sinus surgery.RESULTS. There was a significant difference in the mean VAS at 3 months postoperatively in Group B, but no significant difference at 6 months postoperatively following either of the two methods. The mean time for surgery (p<0.01) and the mean intraoperative blood loss (p<0.01) were significantly lower in Group B.CONCLUSION. A well-trained surgeon with proper anatomical knowledge, good instruments, hypotensive anaesthesia, minimal mucosal injury and regular proper follow-up will have similar postoperative results with both methods.

scholarly journals HAEMORRHOIDECTOMY;

2017 ◽  
Vol 24 (01) ◽  
pp. 69-74
Author(s):  
Ahsan Nasim ◽  
Marriyum Baig ◽  
Reem Saad
Keyword(s):  
Hospital Stay ◽  
Harmonic Scalpel ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Randomized Control ◽  
Group B ◽  
Mean Time ◽  
Surgical Unit ◽  
Closed Haemorrhoidectomy

Haemorrhoids are one of the most common anorectal disorders. Internalhaemorrhoids are symptomatic anal cushions and characteristically lie in the 3, 7 and 11 o’clockposition whereas external haemorrhoids relate to venous channels of the inferior haemorrhoidalplexus. Objectives: To compare the outcome of haemorrhoidectomy using harmonic scalpelversus conventional closed haemorrhoidectomy. Study Design: Randomized control trial.Setting: Department of Surgical unit II, Jinnah Hospital, Lahore. Period: Six months from 25thDecember 2014 to 24th June 2015. Methodology: A total of 140 patients were included inthis study. Patients were divided in two groups A & B. In Group A, (70 patients) conventionalhaemorrhoidectomy was performed by the Ferguson Technique (closed technique) whereasin Group B, (70 patients) suture less closed haemorrhoidectomy was performed by using theharmonic scalpel. Results: The mean age of the patients in group A was 43.3±8.2 years andin group B was 42.3±7.3 years. The mean time for surgery in group A was 23.8±4.2 minutesand in group B was 8.5±3.6 minutes. The mean pain score in group A was 5.3±1.8 VAS andin group B was 3.9±1.9 VAS. In group A, less than 1 day postoperative hospital stay was in 62(88.6%) patients and in group B, it was in 66 (94.3%) patients. Conclusions: It is concludedfrom this study that haemorrhoidectomy by harmonic scalpel results in decrease in operationtime and less postoperative pain although there is not much significant difference in less than 1day hospital stay as compared to the conventional closed haemorrhidectomy technique.

scholarly journals Percutaneous Nephrolithotomy: A Comparison of Tubeless versus the Standard technique

2021 ◽  
Vol 25 (1) ◽  
pp. 140-144
Author(s):  
Zein El Amir ◽  
Muhammad Ali Shahiman ◽  
Zeeshan Qadeer ◽  
Rameez Ahmed Mughal ◽  
Ashfaq Ali
Keyword(s):  
Major Complication ◽  
Postoperative Outcome ◽  
Standard Technique ◽  
Significant Difference ◽  
Postoperative Drainage ◽  
Dj Stent ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Tubeless Pcnl

Objective: The proposed study aimed to assess the utility of tubeless PCNL in terms of efficacy and safety when compared with the standard tubed PCNL. Materials & Methods: In this study 280 patients (age ranged 08-70 years) who underwent PCNL were included. Results: The patients were from both genders i.e., 156 males and 124 females. Out of 280 patients, 140 had a 16 FR nephrostomy tube (Group A) whiles an equal number had 4.8F DJ Stent (Group B) for postoperative drainage. A comparison of the postoperative outcome among the two groups was made for a period of two years (November 2017 to October 2019). Neither any significant difference was found in the mean stone size, operative time, nor was stone-free status, nor any major complication observed. The mean hospital stay for group A and group B was 4.5 days (range 3 to 6) and 3.2 days (range 2 to 4) respectively. An early postoperative wound soakage was found in 18 (12.8%) cases of group A in contrast to the group B patients in whom only 2 (1.4%) had soakage. Conclusion: It was concluded that Tubeless PCNL as compared to the standard tubed PCNL was found more efficacious and safer and it should be adopted as a routine procedure.

Evaluating the Effect of Three-Dimensional Visualization on Force Application and Performance Time during Robotics-Assisted Mitral Valve Repair

2013 ◽  
Vol 8 (3) ◽  
pp. 199-205 ◽  
Author(s):  
Maria E. Currie ◽  
Ana Luisa Trejos ◽  
Reiza Rayman ◽  
Michael W.A. Chu ◽  
Rajni Patel ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Mitral Valve ◽  
Haptic Feedback ◽  
3D Visualization ◽  
Three Dimensional ◽  
Test Bed ◽  
Mitral Valve Annuloplasty ◽  
Significant Difference ◽  
The Mean ◽  
Mean Time

Objective The purpose of this study was to determine the effect of three-dimensional (3D) binocular, stereoscopic, and two-dimensional (2D) monocular visualization on robotics-assisted mitral valve annuloplasty versus conventional techniques in an ex vivo animal model. In addition, we sought to determine whether these effects were consistent between novices and experts in robotics-assisted cardiac surgery. Methods A cardiac surgery test-bed was constructed to measure forces applied during mitral valve annuloplasty. Sutures were passed through the porcine mitral valve annulus by the participants with different levels of experience in robotics-assisted surgery and tied in place using both robotics-assisted and conventional surgery techniques. Results The mean time for both the experts and the novices using 3D visualization was significantly less than that required using 2D vision (P < 0.001). However, there was no significant difference in the maximum force applied by the novices to the mitral valve during suturing (P = 0.7) and suture tying (P = 0.6) using either 2D or 3D visualization. The mean time required and forces applied by both the experts and the novices were significantly less using the conventional surgical technique than when using the robotic system with either 2D or 3D vision (P < 0.001). Conclusions Despite high-quality binocular images, both the experts and the novices applied significantly more force to the cardiac tissue during 3D robotics-assisted mitral valve annuloplasty than during conventional open mitral valve annuloplasty. This finding suggests that 3D visualization does not fully compensate for the absence of haptic feedback in robotics-assisted cardiac surgery.

scholarly journals Comparison Between With Kirschner-wires Only And Combined Screw Fixation in Proximal Reverse Chevron osteotomy(PCMO) For Hallux Valgus Deformity

2017 ◽  
Vol 2 (3) ◽  
pp. 2473011417S0002
Author(s):  
Hwa Jun Kang ◽  
Hong-Geun Jung ◽  
Jong-Soo Lee ◽  
Sungwook Kim ◽  
Mao Yuan Sun
Keyword(s):  
Hallux Valgus ◽  
Screw Fixation ◽  
Fixation Method ◽  
Kirschner Wires ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Severe Hallux Valgus

Category: Bunion Introduction/Purpose: Kirschner-wires fixation, sometimes we have encountered pin irritation or pull-out. This is the reason why we consider additional fixation. Moreover, there are few reports according to comparison of fixation method, and Most of them focused on comparison K-wires or screw fixation only. Purpose of study is to compare clinical and radiographic outcome between Kirschner-wires only and combined screw fixation. Methods: The study included two different groups according to fixation methods. One with Kirschner-wires fixation (KW group) included 117 feet(of 98 patients), the other with combined screw fixation (KWS group) 56 feet (of 40 patients) with moderate to severe hallux valgus. Clinically, the preoperative and final follow-up visual analog scale (VAS) pain scores, the preoperative and final follow-up American Orthopaedic Foot & Ankle Society (AOFAS) hallux metatarsophalangeal (MTP)-interphalangeal (IP) scores, and patient satisfaction after the surgery were evaluated. Radiographically, the hallux valgus angle (HVA), intermetatarsal angle (IMA), medial sesamoid position (MSP), and first to fifth metatarsal width (1-5MTW) were analyzed before and after surgery. Results: The mean AOFAS score improved preoperative 65.5 to 95.3 at final follow up in group A, while preoperative 56.5 to 88.6 at final follow up. Pain VAS decreased from 5.7 to 0.5 in group A, whereas from 6.2 to 1.6 in group B. The mean HVA all improved from preoperative 38.5 to 9.3 at final follow up in group A and 34.7 to 9.1 in group B. The mean IMA and MSP also improved significantly at final follow up. In comparative analysis, the IMA did not show significant difference between postoperative and final state in group A, while showed significant increase in group B. Conclusion: We achieved favorable clinical and radiographic outcomes with minimal complications in patient with moderate to severe hallux valgus in both groups. However, this study shows no statistically significant difference in IMA during follow-up period and lower recurrence rate. Therefore we need to consider combined fixation method to provide better stability and can expect lower recurrence rate.

scholarly journals Single Layer Extra-Mucosal Versus Double Layer Intestinal Anastomosis for Colostomy Closure: A Prospective Comparative Study

2021 ◽  
Vol 17 (2) ◽  
pp. 95-99
Author(s):  
Layth Saleh Owaid ◽  
Imad Wajeeh Al-Shahwani ◽  
Zuhair B. Kamal ◽  
Laith Naif Hindosh ◽  
Abbas Farman Abdulrahman ◽  
...  
Keyword(s):  
Double Layer ◽  
Intestinal Anastomosis ◽  
Single Layer ◽  
Anastomosis Group ◽  
Duration Of Hospital Stay ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Mean Cost ◽  
Mean Time

Background: The main objective was to compare the outcome of single layer interrupted extra-mucosal sutures with that of double layer suturing in the closure of colostomies. Subjects and Methods: Sixty-seven patients with closure colostomy were assigned in a prospective randomized fashion into either single layer extra-mucosal anastomosis (Group A) or double layer anastomosis (Group B). Primary outcome measures included mean time taken for anastomosis, immediate postoperative complications, and mean duration of hospital stay. Secondary outcome measures assessed the postoperative return of bowel function, and the overall mean cost. Chi-square test and student t-test did the statistical analysis.. Results:  Thirty-two patients were allocated to group A and 35 patients to group B. The mean time taken for anastomosis was significantly shorter in group A (23.25 ± 1.20 min in group A vs. 36.71 ± 1.93 min in group B; P<0.001). A significant shorter duration of hospital stay was seen in group A (7.00 ± 1.778 days in group A vs. 9.74 ± 1.990 days in group B; P<0.001). The detection of bowel sound was substantially quicker in group A as compared to group B (4.56 ± 0.50 days in group A vs. 6.46±0.50 days in group B; P<0.001). There was no significant discrepancy between the two groups regarding anastomotic leak rates (P= 0.543). The mean cost of double layer intestinal anastomosis method was significantly higher than that of single layer anastomosis (P<0.001). Conclusions: The use of single layer extra-mucosal anastomosis of the intestine has the advantage of taking less time, less morbidity and cost-effective to perform with the same rate of anastomotic leak in the closure of colostomy.

The role of tolvaptan in prevention of hyponatremia in patients undergoing transurethral resection of prostate surgery- A randomized double blind study

2021 ◽  
Vol 8 (2) ◽  
pp. 321-325
Author(s):  
Dinesh Kumar Singh ◽  
B B Baj ◽  
Vipin Goyal
Keyword(s):  
Transurethral Resection ◽  
Blind Study ◽  
Transurethral Resection Of Prostate ◽  
Double Blind Study ◽  
Double Blind ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Group B

The aim of our study to determine the role of tolvaptan in prevention of hyponatremia in transurethral resection of prostate surgery. This is randomized double-blind study conducted in 60 ASA grade status 1 and 2 patients age group between 45-80 yrs undergoing TURP under spinal anaesthesia in urology operation theatre in Mahatma Gandhi hospital Jaipur after receiving permission from hospital ethical committee. A detailed history, complete physical examination and routine investigation were done for all patients followed by informed written consent was obtained. Patients are randomly divided into 2 groups. In group A -30 patients who received orally tab tolvaptan 15 mg and group B-30 patients who received orally tab multivitamin 2 hrs before surgery after doing electrolytes of the patients in the morning. In both groups age (in yrs), wt (in kg), ASA grade, volume of irrigating fluid (in litres), volume of prostate resected (in gm) and duration of surgery (in minutes) all demographic and surgical details data were compared. Electrolytes were compared in both groups pre and post-operatively and statistical analysis was done.There was significant difference in post-operative sodium level between the two groups (A and B). The mean level of sodium significantly reduced post-operatively in group –B (control grp). The mean level of sodium significantly increased post-operatively in group –A (tolvaptan grp). We conclude single dose of tolvaptan -15 mg found to effective in prevention of hyponatremia in patients undergoing TURP.

Clinical Results Of A Lamina With Spinous Process And An Iliac Graft As Bone Grafts In The Surgical Treatment Of Single-Segment Lumbar Pyogenic Discitis: A Retrospective Cohort Study

2020 ◽  
Author(s):  
Weiyang Zhong ◽  
Xinjie Liang ◽  
Xiaolin Wang ◽  
Ke Tang ◽  
Tianji Huang ◽  
...  
Keyword(s):  
Hospital Stay ◽  
Spinous Process ◽  
Bone Grafts ◽  
Clinical Results ◽  
Single Segment ◽  
Significant Difference ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Segmental Angle

Abstract Background: A retrospective study investigated and compared the results of a lamina withspinous process (LSP) and an iliac graft (IG) as bone grafts in single-segment lumbar pyogenic discitis (LPD) through one-stage-posterior-only approach with radical debridement and internal instrumentation.Methods: Data from 37 patients were reviewed. A LSP was placed in 17 patients (group A), and an IG was implemented in 20 patients (group B). The surgery time, surgery hemorrhage, hospital stay, drainage, and follow-up (FU) were reviewed. The visual analogue scale (VAS), Oswestry Disability Index (ODI), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, segmental angle, intervertebral height and bony fusion time were compared preoperatively and at the final FU.Results: All patients were followed-up for a mean of 27.94±2.35 months in group A and 30.29±1.89 months in group B, without a difference. The mean age was younger in group A than in group B (P<0.05). The surgery time, surgery hemorrhage, and hospitalization cost were lower in group A than in group B (P<0.05), except for the hospital stay and drainage time. Fever occurred in 10 patients in group A and 12 patients in group B. The ESR, CRP level, and VAS and ODI scores were significantly decreased, and there were no significant differences between the groups at the final FU. The distribution of bacterial agents in blood culture was 1 case of Aerobacter cloacae, 2 of Staphylococcus aureus, 2 of Escherichia coli, and 1 of Streptococcus viridis in group A and 1 of S. aureus，1 of Staphylococcus warneri and 2 of Klebsiella pneumoniae in group B. Pyogenic infection was observed in the pathological findings of all patients. No significant difference was found in the mean segmental angle or mean intervertebral height preoperation and at the final FU between the groups.Conclusion: The use of LSP as a new bone graft is reliable, safe, and effective for surgical management for the LPD while surgery is proposed as a good management strategy for LPD in carefully selected patients.

Comparison of Three Different Screw Trajectories in Osteoporotic Vertebrae: A Biomechanical Investigation

2020 ◽  
Author(s):  
Jan-Sven Jarvers ◽  
Stefan Schleifenbaum ◽  
Christian Pfeifle ◽  
Christoph Oefner ◽  
Melanie Edel ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Fatigue Behavior ◽  
Fixation Strength ◽  
Patient Specific ◽  
Promising Alternative ◽  
Cortical Bone Trajectory ◽  
Pull Out ◽  
Group A ◽  
The Mean ◽  
Group B

Abstract Background: Pedicle screw insertion in osteoporotic patients is challenging. Achieving more screw-cortical bone purchase and invasiveness minimization, the cortical bone trajectory and the midline cortical techniques represent alternatives to traditional pedicle screws. This study compares the fatigue behavior and fixation strength of the cement-augmented traditional trajectory (TT), the cortical bone trajectory (CBT) and the midline cortical (MC). Methods: Ten human cadaveric spine specimens (L1 - L5) were examined. The average age was 86.3 ± 7.2 years. CT scans were provided for preoperative planning. CBT and MC were implanted by using the patient-specific 3D-printed placement guide (MySpine®, Medacta International), TT were implanted freehand. All 10 cadaveric specimens were randomized to group A (CBT vs. MC) or group B (MC vs. TT). Each screw was loaded for 10,000 cycles. The failure criterion was doubling of the initial screw displacement resulting from the compressive force (60 N) at the first cycle, the stop criterion as a doubling of the initial screw displacement. After dynamic testing, screws were pulled out axially at 5 mm/min to determine their remaining fixation strength. Results: The mean pull-out forces did not differ significantly. Concerning the fatigue performance, only one out of ten MC of group A failed prematurely due to loosening after 1,500 cycles (L3). Five CBT already loosened during the first 500 cycles. The mean displacement was always lower in the MC. In group B, all TT showed no signs of failure or loosening. Three MC failed already after 26 cycles, 1,510 cycles, and 2,144 cycles, respectively. The TT showed always a lower mean displacement. In the subsequent pull-out tests, the remaining mean fixation strength of the MC (449.6 ± 298.9 N) was slightly higher compared to the mean pull-out force of the CBT (401.2 ± 261.4 N). However, MC (714.5 ± 488.0 N) were inferior to TT (990.2 ± 451.9 N).Conclusion: The current study demonstrated that cement-augmented TT have best fatigue and pull-out characteristics in osteoporotic lumbar vertebrae, followed by the MC and CBT. MC represent a promising alternative in osteoporotic bone if cement augmentation should be avoided. Using the patient-specific guide contributes to improve screws’ biomechanical properties.

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