osteogenesis imperfecta
Noun
Meaning
autosomal dominant disorder of connective tissue characterized by brittle bones that fracture easily
Source: WordNetHypernyms
Examples
In addition to back problems, the breed is also prone to patellar luxation which is where the kneecap can become dislodged. citation Dachshunds may also be affected by Osteogenesis imperfecta (brittle bone disease).