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Lachman test
With the patient supine
and the knee flexed to 20 degrees, the
tibia is pulled anteriorly. A “give” reaction or mushy end point indicates a torn
anterior cruciate ligament.
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Langoria’s sign
Relaxation of the
extensor muscles of the thigh; a symptom of intrascapular fracture of the fe-
mur.
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Laseque’s sign
In sciatica, flexion of
the hip is painful when the knee is extended,
but painless when the knee is flexed. This distinguishes the disorder
from disease of the hip joint. See also
straight leg raising test.
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Laugier’s sign
A condition in which the
styloid process of the radius and of the
ulna are on the same level; seen in fracture
of the lower part of the radius.
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Leichtenstern’s sign
In cerebrospinal
meningitis, lightly tapping any bone of
the extremities causes the patient to
wince suddenly.
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Leri’s sign
Passive flexion of the hand
and wrist of the affected side in
hemiplegia shows no normal flexion of
the elbow.
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Lhermitte’s sign
The development of
sudden transient electric-like shocks
spreading down the body when the
patient flexes the head forward; seen
mainly in multiple sclerosis but also in
compression and other disorders of the
cervical cord.
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Libman’s sign
Extreme tenderness,
but without pain on pressure of the
mastoid bones.
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Linder’s sign
With the patient
recumbent or sitting with outstretched legs,
passive flexion of the head will cause
pain in the leg or the lumbar region in
sciatica.
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Long tract sign
Any sign that one
would see in affection of either sensory
or motor tracts in the spinal cord. For
example, Babinski reflex, Romberg test.
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Ludloff’s sign
Swelling and ecchymosis
at the base of Scarpa’s triangle together with inability to raise the thigh
when in a sitting posture, a sign of traumatic separation of the epiphysis of the
greater trochanter.
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