骨软骨损伤的分期(Osteochondral injury staging) – 影像PPT(精)
1999 年,Hepple等提出MRI的修正分期系统:
1期:仅有关节软骨损伤;
2a期:关节软骨损伤,伴有软骨下骨折和周围骨髓水肿;
2b期:关节软骨损伤,伴有软骨下骨折,无周围骨髓水肿;
3期:骨碎片分离,但无移位;
4期:骨碎片分离,有移位;
5期:关节软骨下囊肿形成。
In 1999, Hepple et al devised the following staging system:
Stage 1 – Articular cartilage damage only
Stage 2 – Cartilage injury with underlying fracture
Stage 2a – Cartilage injury with underlying fracture and edema
Stage 2b – Cartilage injury with underlying fracture but no edema
Stage 3 – Detached (rim signal) but not displaced fragment
Stage 4 – Displaced fragment
Stage 5 – Subchondral cyst formation
目前最为广泛接受及使用的是Hepple分期系统。
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