[New view on the causes and treatment of Brown's syndrome].

The cause of the Brown's syndrome has so far been assigned to changes in the tendon sheath. Mühlendyck has proved that in Brown's syndrome patients the tendon sheath is regular whereas the symptoms are caused by changes in muscle obliquus superior or in the trochlea area. Resection of the irregular structures results in a normalisation of the active and passive elevation in adduction. 18 patients have been operated at our department according to the Mühlendyck method. Early postsurgical observations suggest positive results.