Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The Sliding, Interlocking "8-2-Alpha Knot" for Arthroscopic Surgery.

ABSTRACT: We describe a sliding knot that is ideally lockable by transforming the original simple figure-of-8 configuration into a true interlocking, low-profile knot with an ?-? configuration that creates strong primary knot security when tying is finished. Reversed half-hitches on alternating posts for secondary knot security can be added, but to save surgical time, these are not obligatory. Three simple knot-tying methods are presented; the choice of which to use is based on the surgeon's preference. Pulling the loop limb simultaneously on both sides of the knot could trigger premature knot flipping. Therefore, the loop limb should not be over-tensioned while sliding down the knot; the knot should always be "pulled" down, rather than "pushed" down, onto the target tissues. Because all loops would be disassembled after the post limb is removed from the knot, a salvage procedure is proposed to save the suture from unintentional premature locking.

SUBMITTER: Laupattarakasem W

PROVIDER: S-EPMC5040431 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

The Sliding, Interlocking "8-2-Alpha Knot" for Arthroscopic Surgery.

Laupattarakasem Wiroon W Laupattarakasem Pat P

Arthroscopy techniques 20160808 4

We describe a sliding knot that is ideally lockable by transforming the original simple figure-of-8 configuration into a true interlocking, low-profile knot with an α-α configuration that creates strong primary knot security when tying is finished. Reversed half-hitches on alternating posts for secondary knot security can be added, but to save surgical time, these are not obligatory. Three simple knot-tying methods are presented; the choice of which to use is based on the surgeon's preference. P ...[more]

PMID: 27709049

Similar Datasets

The Wiese Knot: A Sliding-Locking Arthroscopic Knot.

Project description:Despite recent advances in knotless suture devices for arthroscopic surgical procedures, arthroscopic knot tying remains a necessary skill for the arthroscopic surgeon. Successful completion of arthroscopic knot tying relies on a thorough understanding of the chosen technique, proper suture management, adequate knot tensioning and securement, and the ability to reproducibly create the knot. We introduce a technique that serves as both a sliding and locking knot while being simple to master and reproducible to perform.

| S-EPMC5368054 | biostudies-literature

The West Point Knot: A Sliding-Locking Arthroscopic Knot.

Project description:Despite the advent of sutureless technology, knot tying remains an important skill for any arthroscopist. When one is choosing which knot to tie, there are a variety of options, with each possessing its own inherent strengths and weaknesses. The West Point knot is a sliding-locking arthroscopic knot that is relatively easy to learn and has excellent knot security. This article details the appropriate manner in which to tie this knot.

| S-EPMC6073083 | biostudies-other

Loop and knot security of a novel arthroscopic sliding-locking knot using high-strength sutures.

Project description:ObjectiveWe evaluated the loop and knot security of a novel arthroscopic knot, the Wiese knot, using different types of sutures.MethodsThe Wiese knot was tied using four different brands of braided sutures (Ethibond, Orthocord, FiberWire, and UltraBraid) with and without a series of three reversing half-hitches (RHAPs) and tested for loop and knot security.ResultsOrthocord provided the greatest amount of loop security. FiberWire delivered the highest knot security. UltraBraid had the greatest ultimate force. Three half-hitches increased the maximal load to clinical failure.ConclusionThe biomechanical characteristics of the Wiese knot are affected by suture material qualities.

| S-EPMC6138853 | biostudies-literature

The chula knot: a new sliding locking knot with a special property.

Project description:There are many types of sliding locking knots used in arthroscopic surgery. Each type has its advantages and disadvantages. This technical note describes a new sliding locking knot, the Chula knot. This knot has been used for arthroscopic shoulder surgery in more than 500 cases at our hospital. The Chula knot has a special property in that it can be unfastened and retightened in case of premature locking and unintended loop loosening. This retensioning ability cannot be found in other configurations of arthroscopic knots. The Chula knot also has other benefits: It has high ultimate tensile strength and is easy to tie.

| S-EPMC4175540 | biostudies-literature

All Knot-less Arthroscopic Superior Capsular Reconstruction.

Project description:Irreparable rotator cuff tears are a complicated problem, and current treatment options include nonoperative rehabilitation, debridement with or without a biceps tenotomy, tuberoplasty, partial rotator cuff repair, patch augmentation, biodegradable spacers, tendon transfer, and reverse shoulder arthroplasty. Arthroscopic superior capsular reconstruction is a more recent technique that is gaining popularity for use in irreparable rotator cuff tears. However, this surgery can be technically complicated. The purpose of this technique is to increase reproducibility and simplify a complicated procedure by addressing the current challenges of previous techniques.

| S-EPMC6112060 | biostudies-literature

Integral Suture-Handling Techniques for Arthroscopic Sliding Knots.

Project description:In arthroscopic tissue repair, the final step is achieving adequate tissue approximation with a secure knot. The sliding knot is widely preferred over the nonsliding knot, with numerous publications describing knot configurations. However, in the literature there are few published descriptions of suture-handling techniques, even though they are fundamental to arthroscopic knot tying. We describe integral suture-handling techniques for arthroscopic sliding knots to improve the surgeon's performance in knot tying.

| S-EPMC5039732 | biostudies-literature

Orthopaedic Resident Arthroscopic Knot-Tying Skills Are Improved Using a Training Program and Knot-Tying Workstation.

Project description:PurposeTo quantify an orthopaedic trainee's ability to tie arthroscopic knots before and after a short cadaveric-based arthroscopy training period using a commercially available knot-tying workstation.MethodsDuring a weeklong cadaveric arthroscopic training camp, 15 third- and fourth-year orthopaedic residents were evaluated using a commercially available benchtop knot-tying workstation. At the beginning of the week (baseline), each participant was asked to tie 3 knots of his or her choice backed up by 3 half-hitches using nonabsorbable suture. Successful knots fit the sizer and elongated less than 3 mm after application of a 15-lb load. Afterward, residents watched a video demonstrating a sample knot and were encouraged to practice over the ensuing days. At the end of the week (post-training), residents were asked to tie 3 knots. The time to completion and success of each knot were recorded. To compare baseline and post-training knot success, t tests and χ2 analysis were performed.ResultsDuring baseline testing, residents successfully tied 26.7% of their knots (12 of 45 knots) in 352 ± 116 seconds (mean ± standard deviation). During post-training testing, residents successfully tied 66.7% of knots (30 of 45 knots, P = .00014) in 294 ± 63 seconds (P = .023), showing significant improvement in the time and ability to tie arthroscopic knots.ConclusionsWith a short cadaveric-based training period, orthopaedic trainees showed a significant improvement in their ability to tie arthroscopic knots on a commercially available benchtop knot-tying workstation. Given the initial low percentage of successfully tied knots and the limited opportunities for trainees to improve, trainees should be encouraged to practice and improve their skills.Clinical relevanceWith training, residents can improve arthroscopic knot-tying abilities, which may allow them to successfully perform this critical task in the operating room.

| S-EPMC8220621 | biostudies-literature

The Subscapularis Interlocking Stitch for the Arthroscopic Treatment of Subscapularis Tendon Tears at the Shoulder.

Project description:Restoration of subscapularis function is essential for long-term maintenance of good clinical results for both traumatic and nontraumatic rotator cuff tears. The anatomic repair of partially and completely torn tendons from the footprint at the lesser tuberosity is the goal of surgical repair. The described technique, with a combination of an interlocking stitch and additional mattress sutures using a double-loaded suture anchor, provides reduction of the retracted tendon, sufficient pullout strength, and compression of the tendon to the footprint to facilitate healing.

| S-EPMC4722143 | biostudies-literature

Meniscus-Side-Knot-tying Technique Instead of Capsular-Side-Knot-Tying in Arthroscopic Outside-In Meniscal Repair: A Small but Meaningful Modification

Project description: Not available

| S-EPMC10907913 | biostudies-literature

Antiviral Cystine Knot α-Amylase Inhibitors from Alstonia scholaris.

Project description:Cystine knot α-amylase inhibitors are cysteine-rich, proline-rich peptides found in the Amaranthaceae and Apocynaceae plant species. They are characterized by a pseudocyclic backbone with two to four prolines and three disulfides arranged in a knotted motif. Similar to other knottins, cystine knot α-amylase inhibitors are highly resistant to degradation by heat and protease treatments. Thus far, only the α-amylase inhibition activity has been described for members of this family. Here, we show that cystine knot α-amylase inhibitors named alstotides discovered from the Alstonia scholaris plant of the Apocynaceae family display antiviral activity. The alstotides (As1-As4) were characterized by both proteomic and genomic methods. All four alsotides are novel, heat-stable and enzyme-stable and contain 30 residues. NMR determination of As1 and As4 structures reveals their conserved structural fold and the presence of one or more cis-proline bonds, characteristics shared by other cystine knot α-amylase inhibitors. Genomic analysis showed that they contain a three-domain precursor, an arrangement common to other knottins. We also showed that alstotides are antiviral and cell-permeable to inhibit the early phase of infectious bronchitis virus and Dengue infection, in addition to their ability to inhibit α-amylase. Taken together, our results expand membership of cystine knot α-amylase inhibitors in the Apocynaceae family and their bioactivity, functional promiscuity that could be exploited as leads in developing therapeutics.

| S-EPMC4692237 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data