Osteochondral injury staging:
距骨骨软骨损伤的X线分期(Berndt和Harty)分期 X线表现:
I 距骨顶局限性低密度区(软骨下骨压缩)
II 骨软骨块和骨床部分分离
III 骨软骨块和骨床完全分离,但无移位
IV 骨软骨块和骨床完全分离,并移位
Berndt and Hartyra软骨损伤分期系统(推荐)
1999年,Hepple和他的同事在Berndt和Harty分期系统基础上提出了MRI修正分期:
1期:仅关节软骨损伤;
2a期:关节软骨损伤,伴软骨下骨折和周围骨髓水肿;
2b期:关节软骨损伤,伴软骨下骨折,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
Stage 3
Stage 4
其他分类方法:
Loomer等人提出的软骨损伤分期联系客服