Steps of stone cutting position

1. 1 lithotomy position is often used in vaginal hysterectomy, rectal surgery, cystoscopy surgery and other operations. The specific placement method is: the patient lies on his back and puts on leg covers. Then move the patient down so that the sacrococcygeal part slightly exceeds the lower edge of the backboard, and put the legs on the leg rest.

1.2 Common adverse reactions include local skin compression, common peroneal nerve injury and venous thrombosis.

1.3 causes of adverse reactions

1.3. 1 Patients with local skin crush injury had lower limb blood circulation disorder before operation; There is no suitable pad at the carina; Uneven pads and operator pressure can cause local skin compression.

1.3.2 Venous thrombosis The popliteal artery and popliteal vein, the main blood vessels that maintain blood circulation in the calf, are located in the popliteal fossa, lacking the protection of muscle fat tissue, so long-term compression of the popliteal fossa will cause blood circulation disorder in the calf, leading to intimal injury or venous thrombosis. The factors causing excessive compression of popliteal fossa are: too tight restraint or improper posture; The knee flexion angle is too small.

1.3.3 Common peroneal nerve injury The common peroneal nerve is a branch of the sciatic nerve, which bypasses the fibular neck and passes through the peroneal longus muscle to the front of the calf. The place where the common peroneal nerve bypasses the fibular neck is close to the skin and lacks the protection of muscle fat tissue. If it is compressed for a long time, it will cause damage to the common peroneal nerve.