Anterior Shear Test: Difference between revisions
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Have the patient in the side-lying position with the spine in neutral, knees flexed, and hips flexed to 70-90<sup>°</sup>. The Physical Therapist stands in front of the patient with their thighs against the patient’s knee. The Physical Therapist uses cephalic hand to stabilize the upper segment that is being examined. Use the 3 medial fingers of the cephalic hand to contact the spinous process of the upper segment to block posterior movement during testing. Place the lateral 3 fingers of the caudal hand over the cephalic hand to further resist posterior movement of the upper segment. The cephalic index finger and the caudal 5<sup>th</sup> finger will rest on the lower spinous process of the lower segment. The Physical Therapist will provide an axial force with their anterior thigh through the patient’s femur to produce a posterior force through the pelvis and lumbar spine. Posterior movement of the lower segment would indicate a positive for the Anterior Stability Test.<ref>Week 6 Lumbar Special Tests [Unpublished Lecture Notes]. DPT 611: Musculoskeletal Physical Therapy II, Arkansas Colleges of Health Education; Lecture given – 2022 September 12th</ref> | |||
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Revision as of 21:02, 8 April 2023
Purpose
[edit | edit source]
The purpose of the anterior shear test, also referred to as the anterior instability test, is to evaluate the stability of the structures that prevent anterior translation of the lumbar vertebrae in conjunction with other tests and methods[1].
Technique[edit | edit source]
Have the patient in the side-lying position with the spine in neutral, knees flexed, and hips flexed to 70-90°. The Physical Therapist stands in front of the patient with their thighs against the patient’s knee. The Physical Therapist uses cephalic hand to stabilize the upper segment that is being examined. Use the 3 medial fingers of the cephalic hand to contact the spinous process of the upper segment to block posterior movement during testing. Place the lateral 3 fingers of the caudal hand over the cephalic hand to further resist posterior movement of the upper segment. The cephalic index finger and the caudal 5th finger will rest on the lower spinous process of the lower segment. The Physical Therapist will provide an axial force with their anterior thigh through the patient’s femur to produce a posterior force through the pelvis and lumbar spine. Posterior movement of the lower segment would indicate a positive for the Anterior Stability Test.[2]
Evidence[edit | edit source]
More research is required to determine the sensitivity and specificity of this particular special test[1].
Resources[edit | edit source]
add any relevant resources here
References[edit | edit source]
- ↑ 1.0 1.1 William T., Karas S., Baughman E. Addition of the anterior shear test in diagnosing lumbar segmental instability: a case report. Orthopaedic Practice. 2018; 30: 26-27.
- ↑ Week 6 Lumbar Special Tests [Unpublished Lecture Notes]. DPT 611: Musculoskeletal Physical Therapy II, Arkansas Colleges of Health Education; Lecture given – 2022 September 12th
