Ear amputation is mainly used in some dog breeds, such as Great Dane, Duberman Pincher, Caucasian Shepherd, Napolitania, Boston Terrier, Poodle, etc. From a medical point of view, surgery is not necessary, just to satisfy people's hobbies and habits. Now some European countries advocate banning this kind of operation. But some countries in the former Soviet Union and Eastern Europe are still going on. Because most dogs in China mainly come from Eastern Europe, Russia and other countries, we still continue and follow their model. ?

Ear-breaking surgery should generally be performed at 9 ~ 12 weeks old, when the head develops stably and the cartilage develops vigorously. Surgery should be based on the standard types, main hobbies, face shapes and so on of different breeds of dogs' ears. The following introduces several common points of dog ear-breaking surgery.

1. 1 General anesthesia is generally used for anesthesia and Baoding operation. Baoding is in chest or lateral position, and sandbags are placed on both sides of the head to fix the head. General anesthesia can be performed by intramuscular injection with the weight of 0. 1.5 ~ 0.2 ml/kg developed by the Department of Surgery of Northeast Agricultural University, or by local anesthesia. Local anesthesia can choose 0.5% procaine (5 ~? 20 ml? Depending on the size of the dog, high concentration of procaine, such as 2%, can cause shock in animals along the surgical tangent (as shown in figure 1). In local anesthesia,11000 epinephrine, such as procaine, can be used in a certain proportion, and the effect is better. ?

1.2 surgical methods hospitals with conditions can choose ear clips with appropriate shapes to fix their ears for surgery. The common ear clip shape in clinic is shown in Figure 2. If there is no ear clip, you can choose to puncture the subcutaneous vein of the ear or use a tourniquet to puncture the root of the ear to stop bleeding. After the ear clip is fixed, use a scalpel or surgical scissors to cut it along the outer edge of the ear tip (as shown in Figure 3). Cut to the tip of the ear with a surgical knife? When wearing ears, use surgical scissors, which can keep the ear tip smooth and straight. One side of the cut can be used as a ruler for the ear to be cut on the other side. After cutting, take it off with ear clips for 2 ~ 3 min. Then suture the skin inside and outside the ear with thread 7 ~ 12. Suture can't penetrate cartilage, otherwise it will be thicker than normal ears. A few more stitches in places with rich capillaries will help stop the bleeding. After operation, put a cotton gauze pillow on the back of your head, put your ears on it neatly, then put sterile gauze on it and wrap it up?

1.3 Ear-breaking essentials Earbreaking essentials and ear shapes are generally carried out according to the dog's face and breed.

General methods of plastic surgery for broken ears. First, divide the dog's auricle into three equal parts, and then trim it according to the dog's face or the owner's requirements and preferences. (1) Cut directly from the root of the auricle to 1/3, and the cut ear will be straight and sharp. (2) Make an arc incision from the base to the auricle 1/2. After the incision, the ear will become shorter and blunt. (3) Cut 1/3 from the base, but the cutting curve is blunt at the bottom and sharp at the top.