scholarly journals The Optimal Surgical Needle for Tendon Suture: Cutting Edge or Reverse Cutting Edge?

2021 ◽  
Vol 27 (2) ◽  
pp. 75-80
Author(s):  
A. S. Zolotov ◽  
S. Kh. Isokov ◽  
A. Kh. Isokova

Background. Achieving  a  durable  connection  between  the  lacerated  tendon  ends  is  difficult.  The  outcome  of  treatment depends on many factors. Several authors consider the properties of the surgical needle used for suturing the tendon to be important. The aim of the study— to compare the strength of the tendon suture applied with the conventional cutting edge and reverse cutting edge surgical needles in the experiment.Materials and Methods.We used porcine tendons for the experiment. The tendon fragments were divided into 2 groups of 20 tendons each. On all 40 tendons, the same type of “injury” of the tendon was simulated — using a scalpel. In the first group, the interrupted suture of the tendon was applied with a cutting edge surgical needle, in the second group — reverse cutting edge. Laboratory tests of the tendon sutures strength were performed on the improvised stand.Results.In the first (suture made with a cutting needle edge), diastasis of 2 mm was determined at an average load of 1219.5 g (m = ±76.56, where «m» is the representativeness error). Complete suture failure occurred at an average load of 1770.8 g (m = ±100.02). In this group, the thread rupture was not recorded. In the second group (a suture made with a reverse cutting edge needle), diastasis occurs with an average load of 1754.75 g (m = ±77.32). Complete suture failure occurred at an average load of 2571.25 (at m= ± 103.78). In three cases, the thread ruptured. In the second group (reverse cutting edge needle), the tendon suture strength was statistically significantly higher than in the first group. Conclusion. The tendon suture strength depends on the surgical needle properties. In tendons  reconstruction  the  reverse  cutting  edge  needle  use  is  more  preferable  compared  to  the  conventional  cutting  edge needle use.

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S674-S675
Author(s):  
Brandon Chatani ◽  
Aida Chaparro ◽  
Patricia Alvarez ◽  
Kristopher Arheart ◽  
Ivan Gonzalez ◽  
...  

Abstract Background This study is analysis the consequences of the reverse syphilis screening on the management of newborns exposed to maternal syphilis, and pediatric physicians’ adherence to the existing guidelines. Methods We conducted a 5-year retrospective review of the maternal population and their newborns diagnosed with syphilis. Women with positive results (TT+/NTT+) and discordant (TT+/NTT-/TT+) and their newborns were included in the analysis. Results Per American Academy of Pediatrics (AAP), the 202 newborns were divided in two groups: proved or highly probable and possible congenital syphilis (Group A, n=102) and less likely and unlikely congenital syphilis (Group B, n=100). Except for the RPR, none of the other laboratory tests showed higher odds for predicting congenital syphilis. The RPR titers above 1:16 were only identified among newborns belonging to the Group A (5%); 32 patients (31%) in the Group A and 19 (9%) in the Group B had an RPR titer equal to or below 1:8. An RPR titer equal to or above 1:4 was almost three times more likely to be identified in patients from Group A (OR 2.91; CI 1.51- 5.59, p< 0.05). The newborns with non-reactive RPRs represented 64% of the patients in the Group A and 47% of them were born to mother with non-reactive RPR also (mothers with discordant results). Among the Group B, 82% of the neonates had a non-reactive RPR and 54% were delivered to mother with non-reactive RPRs. Babies in Group B had additional work-up performed 69% (n=37) of the time; 15% of these babies were treated with intramuscular penicillin which does not follow established AAP guidelines. Statistical analysis of the laboratory tests used for the congenital syphilis work-up Result table comparing the two groups of newborns Conclusion The reverse syphilis screening and non-adherence to the guidelines led to additional screening to half of the newborns in both groups. This study highlights the need for a comprehensive maternal history at the time of delivery that is effectively communicated between the providers. This might lead to greater congruence with the established AAP guidelines. Disclosures All Authors: No reported disclosures


2021 ◽  
Author(s):  
Zhe Song ◽  
Chen Wang ◽  
Na Yang ◽  
Yangjun Zhu ◽  
Kun Zhang ◽  
...  

Abstract Purpose This study aimed to assess the biomechanical stability of a novel internal fixation system of EndoButton plate combined with suture anchor in treating acromioclavicular joint dislocation in the cadaveric specimens. In addition, it provides a new method for the clinical treatment of acromioclavicular joint dislocation. Methods Twelve complete shoulder joint specimens were randomly divided into groups A, B, C, and D (n = 3). Firstly, a quasi-static non-destructive circulation experiment was carried out of coracoclavicular ligament until its function failed. Four different internal fixation materials were used to reduce and fix the acromioclavicular joint. Group A was treated with 3.5 mm clavicular hook locking compression plates, Group B with 5 mm suture anchor Group C with 10 mm Endo-button plate, and Group D with a novel combination of 5 mm suture anchor and 10 mm Endo-button plate. Fluoroscopy was performed to undertake the X-ray of the restored acromioclavicular joint, to evaluate the internal fixation position and acromioclavicular joint reduction. Finally, the shoulder joint was fixed firmly on an electronic universal testing machine (100KN) with a self-made stationary fixture, to conduct a destructive static tensile mechanical test of each specimen vertically at a 100 mm/min load speed. The stress-deformation curve was recorded using a computer connected with the universal mechanical testing machine, and the failure strength and reasons for internal fixation were also recorded. Results The average load-to-failure of the coracoclavicular ligament in groups A, B, C, and D was 373.4 ±0.57 N, 373.6 ±0.62 N, 374.4 ±0.68 N, and 373.9 ±0.15 N, respectively (P>0.05). After internal fixation failure, Group A showed two specimens with clavicular fracture, and one with acromial fracture, with an average load-to-failure of 409.8 ±2.92 N. Group B and D showed three specimens with prolapse of anchor, with average load-to-failure of 293.5 ±4.10 N and 374.2 ±0.40 N, respectively. Group C showed three specimens with basilar coracoid fracture, with average load-to-failure of 373.2 ±2.35 N. Statistical differences existed in the biomechanical load of internal fixation failure among the four groups. Group D was statistically different from Group A and Group B, but not Group C. Conclusion The newly designed EndoButton plate combined with suture anchor for coracoclavicular ligament reconstruction was found to boast simple operation and has high feasibility. Thus it was found effective in the reduction of acromioclavicular joint and treatment of acromioclavicular joint dislocation and fitted the biomechanical characteristics of the acromioclavicular joint.


2013 ◽  
Vol 2 (1) ◽  
pp. 26-30
Author(s):  
MMR Shibli ◽  
S Hoque ◽  
AM Shahinoor ◽  
MAB Akan ◽  
S Zabeen

Background: Hypospadias is one of the most common congenital anomalies, occurring approximately 1in 200 to 1in 300 live birth. Urethrocutaneous fistula (U-C fistula), and meatal stenosis are the most common complication of hypospadias surgery. To reduce these complications there are different surgical procedures. Snodgrass technique is now the popular technique for its low complication rate and better cosmetic outcome. Objective: To explore the short term outcome of interrupted suture compared to continuos suture in snodgrass technique urethroplasty for distal penile hypospadias. Method: It was a randomized control trial study carried out in the department of Paediatric surgery, BSMMU during the period of June 2008 to September 2009. 32 patients with distal penile hypospadias were selected according to set inclusion and exclusion criteria. Subjects who included in the study were randomly distributed in two groups. In group A odd number of patients and in group B even number of patients were included for randomization. Group A (interrupted suture) was treated as interventional group and Group B (continuous suture) as control group. Penile stent was removed on 8th and 10th POD after snodgrass technique of urethroplasty in coronal and subcoronal hypospadias respectively and observed for 4 weeks for two common complications- Urethrocutaneous fistula (U-C fistula), and meatal stenosis. Unpaired t test, Fisher’s exact test were used to see the level of significance. Result: In group A out of 16 subjects; 2 subjects (12.5%) develop Urethrocutaneous fistula and 1 subject (6.3%) had developed meatal stenosis. In group B out of 16 subjects 6 subjects (37.5%) had developed Urethrocutaneous fistula and 3 subjects (18.8%) developed meatal stenosis. Conclusion: Urethrocutaneous fistula (U-C fistula), and meatal stenosis are the most common complication of hypospadias repair and the occurrence of these two complications are less in interrupted suture than that of continuous suture in Snodgrass technique urethroplasty for distal hypospadias. DOI: http://dx.doi.org/10.3329/jpsb.v2i1.15160 Journal of Paediatric Surgeons of Bangladesh (2011) Vol. 2 (1): 26-30


2001 ◽  
Vol 32 (1) ◽  
pp. e9-e12 ◽  
Author(s):  
T. Simonart ◽  
J.-M. Simonart ◽  
I. Derdelinckx ◽  
G. De Dobbeleer ◽  
A. Verleysen ◽  
...  

2006 ◽  
Vol 31 (4) ◽  
pp. 358-367 ◽  
Author(s):  
J. K. F. WONG ◽  
S. CEROVAC ◽  
M. W. J. FERGUSON ◽  
D. A. MCGROUTHER

The effects on cell and matrix morphology of a single interrupted suture are described in rabbit (vascular) and mouse (avascular) digital flexor tendons. This model of tendon injury is reproducible and suitable for quantitative histological analysis. Tendons analysed at day 1, 3, 5, 7 and 14 after wounding demonstrated a well-demarcated “acellular zone” around the suture within 24 hours and persisting over 14 days. The placement of an untied suture in tendon did not produce this effect but tying and releasing the tied knot did. The rapidity of onset suggests that cells move from the zone of injury into less mechanically strained tissue. The acellular zone was apparent in rabbit hind paw flexor tendon which is vascularised and the corresponding tendon in mouse which has no intrinsic blood vessels. This phenomenon highlights biological events that must be considered in parallel with the current trend for multistrand locking flexor tendon suture repairs.


2021 ◽  
pp. 229255032110196
Author(s):  
Alex V. Orădan ◽  
George C. Dindelegan ◽  
Ramona C. Vinaşi ◽  
Maximilian V. Muntean ◽  
Maximilian G. Dindelegan ◽  
...  

Background: Ever since the description of the first microvascular anastomosis, numerous alternative methods have been described to the classical approach. Tissue adhesive has shown promising result in previous studies and can be a fast and efficient alternative which still requires more studies to allow its clinical implementation. Methods: A randomized comparative experimental study was conducted on rats’ femoral arteries and an end-to-end anastomosis was performed in order to compare 2 anastomosis techniques. In one group, a simple interrupted suture was utilized, whereas in the second group a combination between fewer sutures and tissue adhesive was used. The anastomotic time, total operative time, blood flow velocity before, immediately after and 48 hours after the procedure, as well as an independent grading of the anastomosis immediately after the procedure were performed. Magnetic resonance imaging (MRI) was performed in order to assess the degree of stenosis. After euthanasia, histology and scanning electron microscopy (SEM) were performed on the vessels in order to assess possible complications. Results: A total of 24 anastomoses were performed, of which 12 with a classic technique and 12 with an adhesive technique. All the anastomoses were patent with a significant reduction of anastomotic and total operative time. The grading of the anastomoses showed better results in the classic suture group. The blood flow velocities were not statistically significant between the 2 groups. On MRI there was one stenotic anastomosis, whereas histology and SEM showed more complications on the adhesive group. Conclusion: Anastomotic times were significantly lower with a non-significant trend toward more thrombotic complications in the adhesive group. Further improvement of the glue properties and refinement of the technique will likely make it a viable alternative to interrupted suturing in the future.


AYUSHDHARA ◽  
2021 ◽  
pp. 3511-3523
Author(s):  
Deepak Verma ◽  
Ashwini Kumar Sharma ◽  
Megha Shukla

Klaibya is defined in Ayurveda as the inability to achieve and maintain sufficient rigidity in the penis, which is essential for his sexual urges or the needs of his female partner during sexual activity. Chakrapani limits the concept of Klaibya to merely erectile dysfunction. Dhwajbhang, according to Acharya Sushruta, is a form of Klaibya caused by excessive coitus. The standard initial evaluation of a man experiencing ED is conducted in person and involves sexual, medical, and psychosocial histories, as well as laboratory tests comprehensive enough to identify comorbid diseases that may predispose the patient to ED and may contraindicate particular treatments. Properties of Ayurvedic drug; Kuchla (Strychnos nux-vomica) in classical text Rasatarangani as therapeutic of Klaibya (ED) and Brahmi (Bacopa monnieri) is well known Medhya drug that works on neuro- psychological disorders. The current study evaluated the effects of Kuchla and Brahmi on 36 erectile dysfunction patients, having 30 of them completing the trial. The patients were categorized into two parts: Group A administered an ED 250 capsule (Hypothetical) once a day (250mg) with milk, and Group B received a placebo once a day with milk HS for 30 days, followed by another 30 days.


1970 ◽  
Vol 25 (1) ◽  
pp. 1-8 ◽  
Author(s):  
AAM Bhuyan ◽  
MM Rahman ◽  
MA Hashim ◽  
MK Islam ◽  
MN Islam ◽  
...  

The role of omentum with or without antibiotic administration was evaluated in the healing of external wounds in goats. Nine goats aged 8-10 months and weighing 7-8 kg was randomly allocated into 3 groups as A: treated with omentum, B: omentum plus antibiotic and C: control. Experimental wounds about 2.5 cm long and 0.5 cm deep was produced on each side of the midline at the lumber region in each goat. Omentum 2 cm long and 0.4 cm wide obtained from an abattoir were lodged between the wound edges and apposed with nylon thread by simple interrupted suture. Complete healing was obtained on 11, 13 and 19 days in groups B, A and C, respectively. Rectal temperature, heart and respiratory rates showed no significant (p>0.05) variation during the healing period. On histopathological studies, highest degree of inflammation was observed in group C till day 15, but on day 5 in groups A and B. The rates of fibrosis of collagen fibre, epithelialization and neo-vascularization were most intensive in group B and then in group A and C till day 10. It is suggested that omentum along with antibiotic showed good healing in goats. DOI: 10.3329/bvet.v25i1.4612 Bangl. vet. 2008. Vol. 25, No. 1, 1-8


2015 ◽  
Vol 62 (3) ◽  
pp. 255-259
Author(s):  
Alexandra Gireada ◽  
◽  
Nicolae Bacalbasa ◽  
Irina Balescu ◽  
◽  
...  

ASO reaction is one of the most commonly used laboratory tests especially due to the fact that Group A Streptococcal infection is a very often seen situation. Epidemiological studies have shown that ASO titers widely vary among different age groups and population groups; wide variations related to the moment of determination have been also reported.


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