Unstable Knee Condition: Reasons, Signs, Diagnosis, Complications, Treatment And Recovery Unstable knee condition is a frequently seen joint issue where the knee feels loose. Many patients describe it as the knee slipping suddenly during walking or while climbing stairs. At our advanced clinic, we frequently diagnose such cases using both https://www.tumblr.com/healpedia/814953828304699392/knee-joint-instability-causes-symptoms?source=share