title: [Intraarticular hyaulonic acid injection for sports related chondral lesion of the knee].
abstract: In many cases intraarticular injections of hyaulonic acid were effective for sports related chondral lesion, because the chondral defect is recognized as an early stage of osteoarthritis. But in some young cases whose MRI showed chondral defects the hyaulonic acid injection were not effective and further more treatment might be needed. To those cases arthroscopic microfracture method and succeeding intraarticular hyaulonic injections revealed good results.
authors.affiliation: Chief of arthroscopic and sports unit, Kawasakiseitetsu Chiba Hospital.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Tsuchiya