Declawing - Continued
Onychectomy (Declawing) Surgery
A clinical description of the the declawing surgery taken from a leading veterinary surgical textbook is below. Declawing is not a "minor" surgery comparable to spaying and neutering procedures, it is 10, seperate, painful amputations of the distal phalanx at the joint (disjointing).
"The claw is extended by pushing up under the footpad or by grasping it with Allis tissue forceps. A scalpel blade is used to sharply dissect between the second and third phalanx over the top of the ungual crest . The distal interphalangeal joint is disarticulated (disjointed), and the deep digital flexor tendon is incised (severed). The digital footpad, is not incised. If a nail trimmer is used, the ring of the instrument is placed in the groove between the second phalanx and the ungual crest. The blade is positioned just in front of the footpad. The blade is pushed through the soft tissues over the flexor process. With the ring of the nail trimmer in position behind the ungual crest, the blade is released just slightly so that traction applied to the claw causes the flexor process to slip out and above the blade. At this point, the flexor tendon can be incised and disarticulation of the joint (disjointing) completed. Both techniques effectively remove the entire third phalanx." (Excerpted from: Slatter D; Textbook of Small Animal Surgery 2nd ed vol I, p.352 W.B. Saunders Company Philadelphia.)
Complications
The rate of complication is relatively high compared to other so-called routine procedures. Complications of this amputation can be excruciating pain, damage to the radial nerve, hemorrhage, bone chips that prevent healing, painful regrowth of deformed claw inside of the paw which is not visible to the eye, and chronic back and joint pain as shoulder, leg and back muscles weaken.
Other complications include postoperative hemorrhage, either immediate or following bandage removal is a fairly frequent occurrence, paw ischemia, lameness due to wound infection or footpad laceration, exposure necrosis of the second phalanx, and abscess associated with retention of portions of the third phalanx. Abscess due to regrowth must be treated by surgical removal of the remnant of the third phalanx and wound debridement. During amputation of the distal phalanx, the bone may shatter and cause what is called a sequestrum, which serves as a focus for infection, causing continuous drainage from the toe. This necessitates a second anesthesia and surgery. Abnormal growth of severed nerve ends can also occur, causing long-term, painful sensations in the toes. Infection will occasionally occur when all precautions have been taken.
