Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleBony Patella Impingement with Knee Locking in Severe Patellofemoral Arthritis.AuthorsHeinz, Peter; Sager, Stephan; Dreher, ThomasAbstractThe article describes the case of bony patella impingement with knee locking in severe patellofemoral arthritis in an 84-year-old female patient in Zurich, Switzerland.SubjectsPATELLA; KNEE; ARTHRITIS; PATELLA dislocationPublicationDeutsches Ärzteblatt International, 2020, Vol 117, Issue 37, p614ISSN1866-0452Publication typeCase StudyDOI10.3238/arztebl.2020.0614b