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Closure of Wound by Stress Relaxation
Closure of Wound by Stress Relaxation samer kareem 1,755 Views • 3 years ago

Stress-relaxation is a well-established mechanism for laboratory skin stretching, with limited clinical application in conventional suturing techniques due to the inherent, concomitant induction of ischemia, necrosis and subsequent suture failure. Skin defects that cannot be primarily closed are a common difficulty during reconstructive surgery. The TopClosure tension-relief system (TRS) is a novel device for wound closure closure, providing secured attachment to the skin through a wide area of attachment, in an adjustable manner, enabling primary closure of medium to large skin defects. The aim of this study was to evaluate the efficiency of the TopClosure TRS as a substitute for skin grafting and flaps for primary closure of large soft tissue defects by stress-relaxation. We present three demonstrative cases requiring resection of large to huge tumors customarily requiring closure by skin graft or flaps. TRS was applied during surgery serving as a tension-relief platform for tension sutures, to enable primary skin-defect closure by cycling of stress-relaxation, and following surgery as skin-secure system until complete wound closure. All skin defects ranging from 7 to 26 cm in width were manipulated by the TRS through stress-relaxation, without undermining of skin, enabling primary skin closure and eliminating the need for skin grafts and flaps. Immediate wound closure ranged 26 to 135 min. TRS was applied for 3 to 4 weeks. Complications were minimal and donor site morbidity was eliminated. Surgical time, hospital stay and costs were reduced and wound aesthetics were improved. In this case series we present a novel technology that enables the utilization of the viscoelastic properties of the skin to an extreme level, extending the limits of primary wound closure by the stress-relaxation principle. This is achieved via a simple device application that may aid immediate primary wound closure and downgrade the complexity of surgical procedures for a wide range of applications on a global scale.

Femur Fracture  fixation
Femur Fracture fixation samer kareem 1,332 Views • 3 years ago

Open reduction and internal fixation (ORIF) is surgery used to stabilize and heal a broken bone. You might need this procedure to treat your broken thighbone (femur). The femur is the large bone in the upper part of your leg. Different kinds of trauma can damage this bone, causing it to fracture into 2 or more pieces. This might happen to the part of the femur near your knee, near the middle of the femur, or in the part of the femur that forms part of your hip joint. In certain types of femur fractures, your femur has broken, but its pieces still line up correctly. In other types of fractures (displaced fractures), the trauma moves the bone fragments out of alignment. If you fracture your femur, you usually need ORIF to bring your bones back into place and help them heal. During an open reduction, orthopedic surgeons reposition your bone pieces during surgery, so that they are back in their proper alignment. This contrasts with a closed reduction, in which a healthcare provider physically moves your bones back into place without surgically exposing your bone.

Hand Transplant Procedure
Hand Transplant Procedure samer kareem 1,185 Views • 3 years ago

UCLA Hand Transplant Procedure

Popping a Neck Abscess
Popping a Neck Abscess Scott 5,552 Views • 3 years ago

Huge pus in the neck after a bad cold and sore throat!

The Heart
The Heart Mohamed Ibrahim 38,877 Views • 3 years ago

A 3D video clip showing anatomy and physiology of the heart

01_dinparvar_Endodontics
01_dinparvar_Endodontics Dr. Mohammad Amin Dinparvar 1,973 Views • 3 years ago

مرکز ایمپلنت و زیبایی دندان شیراز دکتر محمد امین دین پرور

Genital warts Prevention
Genital warts Prevention samer kareem 6,310 Views • 3 years ago

Genital warts are growths on the skin of the genital area and around the anus. They are caused by certain types of the human papilloma virus (HPV). There are more than 100 types of HPV. Some types of HPV produce warts on different parts of the body, like plantar warts on the feet and common hand warts. There is no specific treatment for HPV, but there are treatments for health problems caused by HPV. Genital warts can be treated by your healthcare provider, or with prescription medication. HPV-related cancers are more treatable when diagnosed and treated promptly. For more information, visit www.cancer.org.

Breast Cysts
Breast Cysts samer kareem 6,035 Views • 3 years ago

The lumps may be hard or rubbery and can appear as a single breast lump that may be large or small. Fibrocystic changes also can appear as thickening of the breast tissue. Fibrocystic changes can occur in one or both breasts and are the most common cause of benign breast lumps in women age 35 to 50.

Healing Process of Bone Fracture
Healing Process of Bone Fracture samer kareem 3,522 Views • 3 years ago

How Does a Bone Heal? All broken bones go through the same healing process. This is true whether a bone has been cut as part of a surgical procedure or fractured through an injury. The bone healing process has three overlapping stages: inflammation, bone production and bone remodeling. Inflammation starts immediately after the bone is fractured and lasts for several days. When the bone is fractured, there is bleeding into the area, leading to inflammation and clotting of blood at the fracture site. This provides the initial structural stability and framework for producing new bone. Diagram of inflammation in a fractured bone Bone production begins when the clotted blood formed by inflammation is replaced with fibrous tissue and cartilage (known as soft callus). As healing progresses, the soft callus is replaced with hard bone (known as hard callus), which is visible on x-rays several weeks after the fracture. Bone remodeling, the final phase of bone healing, goes on for several months. In remodeling, bone continues to form and becomes compact, returning to its original shape. In addition, blood circulation in the area improves. Once adequate bone healing has occurred, weightbearing (such as standing or walking) encourages bone remodeling.​

Amputated arm Re-Attaching
Amputated arm Re-Attaching samer kareem 49,331 Views • 3 years ago

A case of replantation of a completely amputated arm

Anatomy of The Lower Limb Joints
Anatomy of The Lower Limb Joints Anatomy_Videos 8,842 Views • 3 years ago

Anatomy of The Lower Limb Joints

VTP,CRICOTIROIDOTOMIA
VTP,CRICOTIROIDOTOMIA samer kareem 1,445 Views • 3 years ago

STREP THROAT
STREP THROAT samer kareem 1,413 Views • 3 years ago

Strep throat is a bacterial infection that can make your throat feel sore and scratchy. Strep throat accounts for only a small portion of sore throats. If untreated, strep throat can cause complications, such as kidney inflammation or rheumatic fever. Rheumatic fever can lead to painful and inflamed joints, a specific type of rash or heart valve damage. Strep throat is most common in children, but it affects people of all ages. If you or your child has signs or symptoms of strep throat, see your doctor for prompt testing and treatment.

Endoscopic Removal of Coin from Esophagus
Endoscopic Removal of Coin from Esophagus Mohamed Ibrahim 14,327 Views • 3 years ago

Endoscopic Removal of Coin from Esophagus

Giant Spigelian Strangulated Hernia
Giant Spigelian Strangulated Hernia DrHouse 17,900 Views • 3 years ago

Giant spigelian stranguled hernia with small bowel loop and omental flap inside. The omentum required resection, the bowel appears vital. After the handle of hernia sac and his content has been done, a overlapped prolene repair will be done.

Megacolon
Megacolon samer kareem 3,063 Views • 3 years ago

Megacolon, as well as megarectum, is a descriptive term. It denotes dilatation of the colon that is not caused by mechanical obstruction.[1, 2] Although the definition of megacolon has varied in the literature, most researchers use the measurement of greater than 12 cm for the cecum as the standard. Because the diameter of the large intestine varies, the following definitions would also be considered: greater than 6.5 cm in the rectosigmoid region and greater than 8 cm for the ascending colon. Megacolon can be divided into the following 3 categories: Acute megacolon ( pseudo-obstruction) Chronic megacolon, which includes congenital, acquired, and idiopathic causes Toxic megacolon

Ulnar head excision (Darrach procedure)
Ulnar head excision (Darrach procedure) DrHouse 32,728 Views • 3 years ago

Ulnar head excision in a patient with rheumatoid arthritis who presented with painful and limited forearm rotation. Performed at the Queen Victoria Hospital, East Grinstead

Peritoneal Tap to Drain Ascites Fluid
Peritoneal Tap to Drain Ascites Fluid samer kareem 12,629 Views • 3 years ago

This video demonstrates a boatload of excellent teaching points on how to perform a peritoneal tap to remove ascites fluid from the peritoneum.

Cricothyroidotomy Video
Cricothyroidotomy Video Surgeon 15,282 Views • 3 years ago

Cricothyroidotomy Video

Bowel Obstruction - Causes and Pathophysiology
Bowel Obstruction - Causes and Pathophysiology samer kareem 6,623 Views • 3 years ago

A small-bowel obstruction (SBO) is caused by a variety of pathologic processes. The leading cause of SBO in industrialized countries is postoperative adhesions (60%), followed by malignancy, Crohn disease, and hernias, although some studies have reported Crohn disease as a greater etiologic factor than neoplasia.

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