Coxarthrosis - degenerative disease of the hip joint - grading of osteoarthrosis (modified Kellgren and Lawrence grades)

This is an alternative grading system for degenerative disease of the hip joint - coxarthrosis. Rather than giving percentage of joint space narrowing, it preferes descriptive approach to the typical degenerative changes of the hip joint.

Grade Description
Grade I medial joint space narrowing, beginning osteophytes
Grade II inferomedial joint space narrowing, marked osteophytes, subchondral sclerosis
Grade III marked joint space narrowing, osteophytes, sclerosis, subchondral cysts both in acetabulum and femoral head, deformation of the acetabulum and femoral head
Grade IV absent joint space, sclerosis, cysts, deformation


1. Dungl P et al. Ortopedie. Praha: Grada, 2005.
2. Coxartróza | Lékařské klasifikace • Online kalkulačky • Skóre • Tabulky • MKN [Internet]. Available from: