Correct and safe surgical positioning basically guarantees a successful surgery. A proper surgical positioning not only facilitates the smooth operation, but also effectively prevents the occurrence of complications caused by forced surgical positions. 90° lateral position is the most commonly position in urological surgery, but will cause many clinical complications due to restricted limb movement during surgery. Therefore, different sizes of medical head positioners are designed and manufactured according to the lateral position of surgical patients of different ages and weights, so as to reduce complications, make patient feel comfortable, and improve physician satisfaction.

The traditional lateral positioner is placed through fixing a pelvic fixator to the patient’s pubic symphysis and sacrococcygeal region. If the pelvic fixator is fixed too tightly, the patient’s abdominal breathing will be weakened and the inferior vena cava return will be obstructed; if the pelvic fixator is fixed too loosely, it will easily cause the patient’s body to move and affect the exposure of the operative field. The modified foam slotted head positioners are designed to fit the patient’s body shape when lying on the side, so they can increase the stability of fixation, better expose the surgical field, prevent intraoperative displacement, and shorten the operation time. Meanwhile, the modified positioner has good breathability and appropriate weight, which can effectively increase the patient’s comfort.

The use of the modified positioner for lateral positioning is easy to operate and saves time and effort. It can be seen that the postoperative complications will be significantly reduced in the patients who use the modified positioner, and they have no skin injury. Coordinated and protective single-assisted positioner can avoid sprains and skin abrasions of limbs and joints caused by improper exertion by medical personnel when the patient is in anesthetized state.

The patient body’s fulcrum points change after the position changes, and the soft tissue bearing capacity and the site and strength of tension will also change, which can cause soft tissue injuries such as nerves, blood vessels, ligaments and muscles. Consequently, the patient’s condition, height, fat and thinness and function of body systems should be carefully considered before selecting right medical head positioners. Intraoperative inspection should be strengthened to adjust the height of positioners and the tightness of restraint belt to avoid the pressure on the abdomen that may aggravate the respiratory distress and reduce the amount of cardiovascular blood return.

Reasonable position placement with convenient operation based on the patient’s physiological anatomical knowledge can not only greatly reduce the impact of position change on the patient’s physiological function and reduce the risk of anesthesia, but also fully expose the surgical field and facilitate the operation of the surgeon.

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