Introduction: The use of a pedicled latissimus dorsi flap for reconstruction of large soft-tissue defects following musculoskeletal tumor excision around the shoulder provides adequate well-vascularized and healthy tissue to maximize the chances of successful limb salvage and minimize the risks of wound problems and deep infection.
Indications & Contraindications:
Step 1: (posterior Clockwise Rotation Technique): Preoperative Evaluation, Positioning, And Preparation: Verify the adequacy of the latissimus dorsi, confirm the feasibility of the flap in relation to the extent of the defect, and use a laparotomy pad to simulate the arc of flap rotation.
Step 2: (posterior Clockwise Rotation Technique): Flap Design And Marking In Relation To Anatomic Landmarks: At the time of surgery, proper flap design and markings are critical for successful tumor excision and flap rotation.
Step 3: (posterior Clockwise Rotation Technique): Tumor Excision And Flap Elevation: Confirm adequate tumor removal, prepare the recipient site for the flap, ensure the proper size and shape of the skin island, deepen the dissection circumferentially around the skin paddle, divide the latissimus from the thoracolumbar fascia, develop the natural plane of the flap, divide the branch for the serratus to increase rotation if necessary, and release the humeral insertion to further increase rotation if necessary.
Step 4: (posterior Clockwise Rotation Technique): Posterior Flap Transposition And Inset Into The Defect: Be sure to create an adequately sized tunnel and, when passing the flap through the tunnel, to avoid tension on the vascular pedicle and the skin island.
Step 5: Postoperative Care: Proper postoperative care includes monitoring the flap blood supply and output of drains, removing sutures, and ensuring satisfactory healing overall.
Step 1: (anterior Counterclockwise Rotation Technique): Preoperative Evaluation, Positioning, And Preparation: The preoperative evaluation, positioning, and preparation are identical to those for the posterior clockwise rotation technique described above.
Step 2: (anterior Counterclockwise Rotation Technique): Flap Design And Marking In Relation To Anatomic Landmarks: Make sure you understand the regional anatomy, ensure appropriate anterior flap rotation, and use the laparotomy pad technique to the simulate arc of rotation.
Step 3: Flap Elevation (anterior Counterclockwise Rotation Technique): The surgical principles of flap elevation and transfer are the same regardless of the location of the recipient site (see Step 3 for the posterior technique above).
Step 4: (anterior Counterclockwise Rotation Technique): Anterior Flap Transposition And Inset Into The Defect: Elevate the flap, create a large subcutaneous tunnel for anterior transfer, and ensure optimal flap inset into the shoulder defect.
Step 5: Postoperative Care (anterior Counterclockwise Rotation Technique): Perform as for the posterior technique.
Results: In 2007, we reported on a series of 33 consecutive patients treated from 1994 to 2004 with a pedicled latissimus dorsi flap following sarcoma excision in the shoulder region.
Pitfalls & Challenges:
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5577945 | PMC |
http://dx.doi.org/10.2106/JBJS.ST.16.00002 | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain.
Three different cathodic materials for the hydrogen evolution reaction (HER) consisting of Ru nanoparticles (NPs) supported onto a bare and two doped reduced graphene oxides (r-GO) have been studied. Ru NPs have been synthesized in situ by means of the organometallic approach in the presence of each reduced graphene support (bare (rGO), N-doped (NH-rGO) and P-doped (P-rGO)). (HR)TEM, EDX, EA, ICP-OES, XPS, Raman and NMR techniques have been used to fully characterize the obtained rGO-supported Ru materials.
View Article and Find Full Text PDFIran J Pharm Res
June 2024
Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: Insulin resistance is an important pathological hallmark of Parkinson's disease (PD). Proinflammatory cytokines during neuroinflammation decrease insulin sensitivity by suppressing insulin signaling elements. Toll-like receptor 4 (TLR4), the main receptor involved in neuroinflammation, is also associated with the pathogenesis of PD.
View Article and Find Full Text PDFIEEE J Solid-State Circuits
November 2024
Department of Electrical and Computer Engineering, Rice University, Houston TX, 77005, USA.
Miniature bioelectronic implants promise revolutionary therapies for cardiovascular and neurological disorders. Wireless power transfer (WPT) is a significant method for miniaturization, eliminating the need for bulky batteries in today's devices. Despite successful demonstrations of millimetric battery-free implants in animal models, the robustness and efficiency of WPT are known to degrade significantly under misalignment incurred by body movements, respiration, heart beating, and limited control of implant orientation during surgery.
View Article and Find Full Text PDFCureus
December 2024
Department of Neurosurgery, Northwell Health, Manhasset, USA.
Introduction: Surgical residency lacks standardized curricula for teaching interpersonal and communication skills. We evaluated the utility of a digital health communication platform, Playback Health, that generates audiovisual recordings of patient-provider interactions as a tool for junior neurosurgical resident education.
Methods: Junior (postgraduate year (PGY)-2 and PGY-3) neurosurgical residents rated their comfort working with five attending neurosurgeons (one of whom implemented Playback Health) across 10 categories, grouped into three overarching domains encompassing knowledge base, technical skills, and interpersonal skills on a 10-point Likert scale.
J Reprod Infertil
January 2024
Department of Toxicology and Pharmacology, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran.
Background: Testicular torsion is a critical urological emergency that can lead to testicular ischemia and significant tissue damage. Citrulline, a supplement known for enhancing cellular metabolism and mitigating oxidative stress and inflammation, has been explored for its protective effects against testicular injury resulting from torsion and detorsion in rat models.
Methods: This study involved 42 Wistar rats, divided into six groups: Sham, torsion/detorsion (T/D), and four groups receiving varying doses of Citrulline (300, 600, 900 ) and vitamin E (20 ).
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!