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Epineurial repair was shown to be as good as perineurial repair in acute nerve laceration, a small cut to the nerve, in cats by evaluating the ambulation pattern, fanning of claws and sensation. The objective measures were efficiency, absolute strength and weight of the flexor carpi ulnaris muscle. [ 6 ]
In major injuries, the repair mechanisms are unable to restore the skin to its original condition. The repaired region contains an abnormally large number of collagenous fibers, and relatively few blood vessels. Damaged sweat and sebaceous glands, hair follicles, muscle cells, and nerves are seldom repaired.
A hand imitating an ulnar claw. The metacarpophalangeal joints of the 4th and 5th fingers are extended and the Interphalangeal joints of the same fingers are flexed.. An ulnar claw, also known as claw hand or Spinster’s Claw, is a deformity or an abnormal attitude of the hand that develops due to ulnar nerve damage causing paralysis of the lumbricals.
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.
Replantation or reattachment is defined as the surgical reattachment of a body part (such as a finger, hand. arm, toe, foot, or leg) that has been completely cut from the body. [1] Examples include reattachment of a partially or fully amputated finger, or reattachment of a kidney that had had an avulsion-type injury .
Wound licking is an instinctive response in humans and many other animals to cover an injury or second degree burn [1] with saliva. Dogs , cats , small rodents , horses , and primates all lick wounds . [ 2 ]
The severity of avulsion ranges from skin flaps (minor) to degloving (moderate) and amputation of a finger or limb (severe). Suprafascial avulsions are those in which the depth of the removed skin reaches the subcutaneous tissue layer, while subfascial avulsions extend deeper than the subcutaneous layer. [ 2 ]
This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government , the image is in the public domain .