anterior rotation, bridge & plop, innominate, innominate rotation, leg length test, Medial Malleolus, posterior rotation, supine

Purpose

Used to level the pelvis and distinguish between a leg length discrepancy and a rotated innominate.

Technique

Patient is positioned supine with feet off the table.

Clinician palpates medial malleoli and notes their position.

Clinician asks patient to bend knees.

Clinician quickly assesses height of the knees looking for leg length differences in the tibia or femur.

Clinician stabilizes patient’s feet and asks her to bridge up and plop down.

Clinician then straightens patient’s leg, braces feet with thigh, and notes the position of the medial malleoli.

Clinician then asks the patient to grab one of his hands, pulls the patient up into long sitting, and asks the patient to bring her arms behind her.

Clinician notes the position of the medial malleoli.

Interpretation

If one leg appears longer in supine and then shorter in long sitting, the innominate on that side is anteriorly rotated.

If one leg appears shorter in supine and then longer in long sitting, the innominate on that side is posteriorly rotated.

References

1. Dutton, M. (2008). Orthopaedic: Examination, evaluation, and intervention (2nd ed.). New York, NY: The McGraw-Hill Companies, Inc.

Related videos:

1. Leg Length Test – Tape Measure
2. ASIS Symmetry
3. [Muscle Energy] Shotgun/Modified Shotgun
4. SI Mobilization To Correct Posteriorly Rotated Innominate
5. Sacroiliac Evaluation (in sitting)