Comparison of Clinical Efficacy and Anatomical Investigation between Retrolaminar Block and Erector Spinae Plane Block

Table 1

The features of RLB, ESPB, PVB, and TEA.

	RLB	ESPB	PVB	TEA
Difficulty	probably easy		advanced level
Technique
Methods	landmark or ultrasound	ultrasound	ultrasound	landmark
Needle-tip position	lamina	transversus process	paravertebral space	epidural space
Laterality of effects	unilateral	unilateral	unilateral	bilateral
Complications	rare	rare	hypotension	epidural hematoma
			(less than TEA)	epidural abscess
			pneumothorax	paralysis
			epidural injection	nerve injury
			hematoma	hypotension
				dural puncture

RLB: retrolaminar block, ESPB: erector spinae plane block, PVB: paravertebral block, and TEA: thoracic epidural anesthesia.