Tendinosis/Tendinitis (Tendinopathy)

“If you think you are confronting ignorance on the track… you just have no idea!” (Charlie Francis, 22nd April, 2003, 6+ days for a marathon thread)

I am currently researching tendinopathy on the internet, and I will be posting the best links on the thread here. It is becoming apparent that the assumption that pain in tendons is tendinitis (although sometimes (rarely) it may be) may result in problems ranging from increased danger of repeating the injury frequently (chronic tendinopathy), to ending the possibility of continuing doing the activity that causes the pain.

1 http://www.tendinosis.org/ FANTASTIC SITE!

"Once people get tendinosis, it usually becomes a long-term chronic problem with no easy solution. Many people have to change careers because they can’t get their injuries to heal well enough to go back to their jobs, even if they make ergonomic improvements. They also have to make long-term changes to their daily lives outside of work to accommodate the limitations caused by the injuries. When tendinosis in an upper extremity is at its worst, people often have trouble performing even the simplest daily tasks such as opening doors, brushing teeth, shampooing hair, cutting and stirring food, tying shoes, turning pages of books and magazines, picking up children, and writing checks.

We need more research to find effective treatments for tendinosis; we don’t understand why tendons often fail to heal even after the injurious activity is stopped, and we don’t know how to reverse the damage. No current treatment has been proven to reverse the microinjuries associated with tendinosis. The injuries usually improve with time, rest, and physical therapy (and also with some nontraditional treatments), but no treatment has been shown to reverse the damage on the cellular scale. We could help many people if we could find a treatment that consistently reversed tendinosis injuries."

“By the time you feel pain from tendinosis, your injury has been gradually building for many weeks. Remember that tendons heal slowly. Dr. Khan’s article says tendons require over 100 days to make new collagen. You will probably need to wait several months before a reasonable amount of repair has occurred, so have patience with this slow healing process.”

"Non-steroidal anti-inflammatories would not be expected to help tendinosis since it is an injury of chronic degeneration, not inflammation. Studies show that some NSAIDs actually impede the healing process, which is the last thing needed with tendinosis.[17] Long-term use of NSAIDs for tendinosis is probably not a good idea. For more information, see the online articles Histopathology of Common Tendinopathies (part 4.1) and The Tendinitis Myth.[18,44] "

2 http://www.physsportsmed.com/issues/2000/05_00/khan.htm
posted on another thread already, but v. important.

3 http://www.clinicalsportsmedicine.com/articles/overuse_tendon.htm

“Failure to appreciate how pain arises in tendinopathies may be limiting progress. It is assumed that tendon overuse causes inflammation, and thus pain. We critically review the inflammatory model of pain in tendinopathy, and find that it does not withstand scrutiny. The generally proposed alternative model is that of mechanical discontinuity of collagen fibers, but this as well is inconsistent with numerous surgical observations. We review data suggesting that pain of tendinopathy may be largely due to yet unidentified biochemical factors activating peritendinous nociceptors when they are exposed to the environs as a results of tendon overuse injury. The noxious agent could include matrix substances and minor collagens. Glutamate can mediate pain, and this is present in higher concentrations in subjects with Achilles tendinopathy than controls. Chondroitin sulphate is another candidate. Examining alternative models of pain, particularly a mixed biochemical-mechanical model, may allow significant progress in management of these troublesome conditions.”

When i can i get some spare time, i’ll post some reviews on tendinosis-tendonitis. Data from studies that are not double cross over or randomised should be treated with caution.

Please highlight the statements/conclusions/information/claims from the sites which you feel have not been supported by research.

To see where you are coming from, for example, what would you say about the idea that overuse tendon pain is generally caused by inflamation?

Another article Histopathology of common tendinopathies

a bad case of tendonitis in my left achilles for about 4+ years. It got to the point that I was convinced I had an avulsion. It didn’t matter if I took time off. I went for some ART and in my first session it was gone. Seems I had damaged hallicus longus and it adhered to my achilles sheath. I did depth jumps that day with zero aggravation.

JimboUk, I need to look at the protocols used in the research.

eg

1)Often there is a bias in the selection of subjects. Researchers/ Physios tend to select subjects who have already shown signs off improvement.

  1. Who funded the research

  2. Where long term affects measured.

  3. Did the research have a control group ( was a group of general population subjects used to compare the results from).

  4. Was it cross over, did the control group and the test group swap.

  5. Was it placebo controlled, so the contol group or test group had no pre-knowledge of what kind of treatment they where receiving.

I dont think i can give a justified answer relating to tendon pain and inflammation at this stage, when i go over the research i’ll get back to you.

A more forthright article (& not too long), with links to other articles

http://bmj.com/cgi/content/full/324/7338/626#B8.

Sorry for sounding ignorent, but i was just wondering what the difference between Tendinosis and Tendinitis is (if any)?

I believe i have this in my lateral posterior tendon (behind my knee) in my left leg. I have tried resting it, not doing weights, or speed work on it, but none of this seems to have worked. the time that it hurts the most is when it is fully loaded when my leg is bent at a 90% angle. eg. during starts (acceleration) and at top speed when you claw your leg back (kind of like during B drills).

any insight into the problem would be greatly appreciated

tendinitis is more acute with inflammation. tendinosis is a chronic (long lasting) problem without inflammation