Friedreich's ataxia is the most frequent and individualized condition of the group of conditions associated with spinocerebellar heredodegeneration (inherited degenerative diseases affecting neurons at the spinal cord and cerebellum levels).ssociation francaise franÃ§aise de'l ataxie De (. ). Friedreich'friedreich s ataxia is an, inherited progressive neurodegenerative disease characterized by spinocerebellar (degeneration damage to pathways from the cerebellum to the spinal). cord
Symptoms of a severe and sudden (acute) anterior cruciate ligament (ACL) injury include: 1  Feeling or hearing a pop in the knee at the time of injury. 2  Sudden instability in the knee. (The knee feels wobbly, buckles, or gives out.) This may happen after a jump or change in direction or after a direct blow to the side of the knee.
Other health problems can cause symptoms like those of an ACL injury. They include a bone break or injuries to the knee cushions (menisci) or to other ligaments in the knee. For more information on knee injuries, see: 1  Knee Problems and Injuries. 2  Patellar Tracking Disorder.