Chiropractor questions

Hey guys! Have any of youse ever seen a chiropractor? I've seen one on and off for many years for various problems, and was lucky enough to have one of the world's most famous and talented chiropractors work on my knee back in Brooklyn (thus saving me from a very painful knee operation). I recently started seeing a new chiropractor here in the Boston area because I stepped funny and threw my leg into a downward spiral of OUCH, and he's doing a pretty good job, but he did something weird and I wondered if it was common in chiropractic circles to do this.

After doing a neck, spinal and leg manipulation, he took a long, smooth bar that resembled a knife (to my myopic eyes, as I wasn't wearing glasses), and he put lube on my leg on and above the knee where I've got a pulled and stiff front-of-thigh muscle. He then used the bar to smoosh out all the nasty little lumps and kinks in my stiff and painful muscle and knee. The action was as if he was trying to scrape something off of the skin, very hard, but the lube made the leg slippery. It really hurt like hell, too! But it did feel better afterward -- the area felt hot, as all the blood rushed where he'd been smooshing. My leg is a mass of tiny clumped bruises where he worked the muscle (he warned me that I'd be badly bruised.) He said he was breaking up the kinks and working them out.

I've never seen this before and can't find it online as something chiropractors do. What is this action called? Anyone else have any experience with this?

I'm all-over painful today, but then I went to a very tough yoga class before my chiropractor visit, so it's to be expected. He is seeing me again next week after my yoga class -- he likes that I've worked out before I show up, as it helps loosen my muscles up.

I'm going to take a nice, hot bath now. I may not be in Gregory House levels of pain, but it still hurts enough for me to be chugging motrin.