Effect of Laser Acupuncture on Disuse Osteoarthritis: An Ultrasound Biomicroscopic Study of Patellar Articular Cartilage in Rats

Table 1

Comparison of ultrasonic characteristics of patellar articular cartilage in three groups.

Parameter	C	T		L
		Value	T versus C	Value	L versus C	L versus T
URI (𝜇m)	3.97±1.80	6.38±1.58	+60.9%^∗∗	5.48±2.56	+38.1%	−14.1%
IRC (dB)	−33.73±3.55	−37.83±5.83	+12.1%	−36.28±5.60	+7.5%	−4.1%
IBC (dB)	−26.92±2.89	−29.97±4.39	+11.3%	−28.91±4.42	+7.4%	−3.5%
Cartilage thickness (𝜇m)	147.00±23.99	126.97±21.12	−13.6%^∗	140.22±19.61	−4.6%	10.4%
Ultrasonographic grade	2.09±0.54	2.42±0.51	+15.6%	2.20±0.79	+5.2%	−9.0%

^∗𝑃<0.05;^∗∗𝑃<0.01.