Trendelenburg, Friedrich

(redirected from steep Trendelenburg position)

Trendelenburg, Friedrich

Ger. surgeon, 1844–1924.

Trendelenburg gait

A side lurching of the trunk over the stance leg caused by weakness in the gluteus medius muscle.

Trendelenburg limp

An abnormal gait in which the patient transfers his or her weight laterally over the femoral head on the weight-bearing side and then shifts the weight back to a central position as the leg on that side is lifted from the ground. It is caused by weak hip adduction.

Trendelenburg position

A position in which the patient's head is low and the body and legs are on an elevated and inclined plane. This may be accomplished by having the patient lie flat on a bed and then elevating the foot of the bed. In this position, the abdominal organs are pushed up toward the chest by gravity. The foot of the bed may be elevated by resting it on blocks. This position is used in abdominal surgery. It is also usually used in treating shock, but if there is an associated head injury, the head should not be kept lower than the trunk. Synonym: head-down position See: position for illus

reverse Trendelenburg position

A body position in which the trunk and head are elevated above the pelvis and lower extremities.

Trendelenburg sign

A pelvic drop on the side of the elevated leg when the patient stands on one leg and lifts the other. It indicates weakness or instability of the gluteus medius muscle on the stance side.

Trendelenburg test

A test to evaluate the strength of the gluteus medius muscle. The examiner stands behind the patient and observes the pelvis as the patient stands on one leg and then the other. A positive result determines muscle weakness on the standing leg side when the pelvis tilts down on the opposite side.


Friedrich, German surgeon, 1844-1924.
Brodie-Trendelenburg test - see under Brodie, Sir Benjamin C
reverse Trendelenburg position - supine position, without flexing or extending, in which the head is higher than the feet.
steep Trendelenburg position
Trendelenburg cannula
Trendelenburg gait
Trendelenburg limp
Trendelenburg lurch
Trendelenburg operation - pulmonary embolectomy.
Trendelenburg position - a supine position on the operating table, used during and after operations in the pelvis or for shock.
Trendelenburg sign - in congenital dislocation of the hip or in hip abductor weakness, the pelvis will sag on the side opposite to the dislocation when the hip and knee of the normal side is flexed.
Trendelenburg symptom - a waddling gait in paresis of the gluteal muscles, as in progressive muscular dystrophy. Synonym(s): Trendelenburg waddle
Trendelenburg tampon
Trendelenburg test - a test of the valves of the leg veins.
Trendelenburg vein ligation
Trendelenburg waddle - Synonym(s): Trendelenburg symptom
References in periodicals archive ?
Comparison of volume-controlled and pressure-controlled ventilation in steep Trendelenburg position for robot-assisted laparoscopic radical prostatectomy.
To facilitate this surgery, the patient must be in the steep Trendelenburg position for a long duration.
For the first stage of the procedure, the patient was placed in the low-lithotomy, steep Trendelenburg position.
In their study (N=31), researchers found the steep Trendelenburg position required to perform the procedure resulted in expected stresses on cerebrovascular, cardiovascular, and respiratory condition, but patients' physiological parameters returned to normal soon after being moved to a supine position.
Of course, one should always consider that vaginal surgery provides a "minimally invasive" approach without the difficulty of ventilating an obese patient in steep Trendelenburg position.
2,3) Also, pelvic anatomy visualized two-dimensionally under magnification during traditional laparoscopy can look very different than it does during conventional surgery, due to the effects of the pneumoperitoneum, steep Trendelenburg position, and/or the use of uterine manipulators.
In 42 patients without cardiopulmonary disease, PPV and SVV were measured before and after administration of 500 ml colloid under pneumoperitoneum combined with the steep Trendelenburg position (35[degrees]).
The main anaesthetic considerations for these Procedures (28,29) are: 1) access to the patient is restricted, because of the large size of the robotic equipment and the spatial restriction after the final positioning and docking of the robot; 2) the patient is in a steep Trendelenburg position for most of the procedure; 3) once the robot is docked, the position of the patient cannot be changed; 4) the surgery is prolonged; and 5) the impact of pneumoperitoneum from carbon dioxide insufflation.
To prevent sliding in a steep Trendelenburg position, the patient is placed on an egg-crate mattress, and both the patient and the mattress are taped to the table.
During gynaecological laparoscopic surgery the combination of pnuemoperitoneum and the steep Trendelenburg position increases the risk of endobronchial intubation by decreasing the distance between the tip of the endotracheal tube (ETT) and the carina (1,2).
30-180 minutes) with a steep Trendelenburg position.