Table 14.1.9 Open in new tab Clinical... | Oxford Academic

Table 14.1.9

Open in new tab

Clinical findings in lumbosacral plexopathy due to cancer

	Upper plexopathy	Lower plexopathy	Panplexopathy
Local pain	Lower abdomen	Buttock, perineum	Lumbosacral
Referred pain	Flank, iliac crest	Hip and ankle	Variable
Radicular pain	Anterolateral thigh	Posterolateral thigh, leg	Variable
Paraesthesiae	Anterior thigh	Perineum, thigh, sole	Anterior thigh, leg, foot
Motor and reflex changes	L2–L4	L5–S1	L2–S2
	Proximal leg weakness	Distal leg weakness	Weakness can affect different muscle groups and reflexes
	Patella reflex	Ankle reflex
Sensory loss	Anterolateral thigh	Posterior thigh, sole	Anterior thigh, leg
Tenderness	Lumbar	Sciatic notch, sacrum	Lumbosacral
Positive SLRT
Direct	50%	50%	83%
Reverse	15%	50%	83%
Leg oedema	41%	37%	83%
Rectal mass	25%	43%	15%
Anal sphincter weakness	0	50%	0

	Upper plexopathy	Lower plexopathy	Panplexopathy
Local pain	Lower abdomen	Buttock, perineum	Lumbosacral
Referred pain	Flank, iliac crest	Hip and ankle	Variable
Radicular pain	Anterolateral thigh	Posterolateral thigh, leg	Variable
Paraesthesiae	Anterior thigh	Perineum, thigh, sole	Anterior thigh, leg, foot
Motor and reflex changes	L2–L4	L5–S1	L2–S2
	Proximal leg weakness	Distal leg weakness	Weakness can affect different muscle groups and reflexes
	Patella reflex	Ankle reflex
Sensory loss	Anterolateral thigh	Posterior thigh, sole	Anterior thigh, leg
Tenderness	Lumbar	Sciatic notch, sacrum	Lumbosacral
Positive SLRT
Direct	50%	50%	83%
Reverse	15%	50%	83%
Leg oedema	41%	37%	83%
Rectal mass	25%	43%	15%
Anal sphincter weakness	0	50%	0

SLRT, straight leg raising test or Lasegue manoeuvre.

Adapted with permission from

Jaeckle et al., The natural history of lumbosacral plexopathy in cancer, Neurology, Volume 35, Issue 1, pp.8–15, Copyright © 1985 American Academy of Neurology.