LSP tests

Question 1

LSP tests

Answer 1

Kemps test

Slump test

Femoral nerve traction test

SLR (straight leg raise) test

Question 2

Femoral nerve traction test

Answer 2

Looks for:
– add traction to the femoral nerve to elicit symptoms

+VE:
– pain running down front of leg (femoral nerve supplies quads and sartorius)

how:
– pt sidelying on unaffected leg
– legs flexed and hips slightly flexed
– extend leg at knee and abduct and extend knee 15 degrees
– to add more traction, can flex leg by bringing their heel to your body to add more stress on femoral nerve

Question 3

Straight leg raise (SLR)

Answer 3

looks for:
– increases pressure on the NR
– radicular pain
– piriformis syndrome
– lumbar strain

+VE:
– only back pain- more of a central disc prolapse (pressure on spinal cord) , or lumbar strain
– leg pain only- lateral disc prolapse, pushing on a NR compressing it
– pain before 70 degrees- NR compression (L5-S3) sciatic nerve
– pain after 70 degrees- lumbar area of SIJ dysfunction (can do an active SLR if suspected SIJ pain)

Just back pain and SIJ pain- back and SIJ pathology

Just leg- sciatic nerve compression L5-S3

Both is a malignancy spinal problem

How:
– pt supine, hip medially rotated and adducted
– with the knee extended, lift the leg (asymptomatic first) until they complain of pain or tightness in the back of the leg