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Tuber ischiadicum / hamstrings / sciatic nerve – transverse

Patient Positioning

Patient lies prone. The foot may hang out of the bed or place a little pillow under the ankle to reach a comfortable position.

Probe Positioning

Place the transducer on a transverse plane over the ischiatic tuberosity, later move the probe downward on axial planes.

Probe Placement Hip
Probe Placement Hip
Pelvis posterior tuber ischiadicum hamstrings transverse
Pelvis posterior tuber ischiadicum hamstrings transverse

Note: The proximal origin of the semimembranosus, semitendinosus and long head of biceps femoris muscles can be found with the ischial tuberosity as main landmark.

Pelvis posterior hamstrings tendons transverse
Pelvis posterior hamstrings tendons transverse

ST: semimembranosus tendon

Pelvis posterior hamstrings transverse
Pelvis posterior hamstrings transverse

ST: semimembranosus tendon
SM: semimembranosus muscle belly

Pelvis posterior hamstrings transverse
Pelvis posterior hamstrings transverse

SN: sciatic nerve
ST: semimembranosus tendon
SM: semimembranosus muscle belly