Kester, A.D.M.

treatment patient group injection grip strength tennis elbow physiotherapy elbow result corticosteroid injections tennis physiotherapy group 52 weeks corticosteroid strength injection group cyriax study symptom outcome j bone table difference dorsiflexion wrist van der linden verhaar humeral epicondylitis corticosteroid injection hazleman bl assessment hazleman method surgery van mameren epicondyle epicondyliti <0.001 value extensor <0.05 rheumatol hospital result rating corticosteroid group cyriax-type physiotherapy measure success month relief variable effect practitioner severity acetate walenkamp linden side-effects increase lundeberg hydrocortisone activity tenderness kester university mameren therapy recurrence orthopaedic professor chard thoma observer bias currey follow-up hydrocortisone acetate devereaux netherland haker criteria