[Tennis elbow].

Tennis elbow is most often due to a tendinitis of the extensor carpi radialis brevis, and occasionally of the extensor digitorum. Pain felt at the outer aspect of the elbow, is elicited by grasping. Passive movements are painless, and of full range, excepted for extension, and varus strain tested in slight flexion.

Discography: an element of decision. Surgery versus chemonucleolysis.

It is a well known fact that both surgery and chemonucleolysis can cure a patient suffering from root pain due to a prolapsed intervertebral disc. However, the failure rate after intradiscal injection of chymopapain remains important. Analysis of the cases operated after unsuccessful chemonucleolysis show that about two thirds are due to a remaining discal fragment.