2000 Volume 24 Issue 3 Pages 293-296
We wish to report on 14 cases of post-traumatic osteolysis of the distal clavicle. Materials and methods: From 1982 to 1998,14 patients (average age: 33.1 years,13 men and 1woman) with osteolysis of the distal clavicle were treated.9 cases were concerned with acute injury to the A-C Joint and 5 cases were associated with repeated minor trauma.
Results: The last roentgenograms were classified in 2 cupping ty pes,4 tapering types and 8 complete types by Takahei's grading system. The outcomes using Cahill's grading system were not concerned with the style of osteolysis and were worse for those cases that had suffered through a repeated minor trauma. The findings of discs of the A-C joint on MRI were divided into three types. Normal types tend to show good results but degenerative or disappeared types did badly.2 specimens of cupping type showed many osteocrust cells and ostelytic lesions on the border of the A-C joint. Conclusion:
This study suggested that post-traumatic osteolysis of the distal clavicle was related to some change of the A-C joint.
