Rangger C, Kathrein A, Freund M C, Klestil T, Kreczy A
Universitätsklinik für Unfallchirurgie, Innsbruck, Austria.
Acta Orthop Scand. 1998 Jun;69(3):291-4. doi: 10.3109/17453679809000933.
We evaluated the histopathologic and cryosectional appearance of bone bruise injuries of the knee detected on MRI. Histologic evaluation of bone biopsies from 3 patients revealed microfractures of cancellous bone, edema and bleeding in the fatty marrow. Between intact lamellar bone trabecules, fragments of hyaline cartilage mixed with highly fragmented bone trabecules were found. Postmortem specimens were obtained from 2 more patients, killed in motor vehicle accidents. MRI revealed bone bruise injuries of the lateral femoral condyle and of the lateral tibial plateau in 1 knee and anterior cruciate ligament disruption, a medial meniscus tear and bone bruise injury of the tibial plateau and of the lateral femoral condyle in the other specimen. The specimens were embedded in physiologic saline solution and frozen to -30 degrees C. By rotationcryotomy, 1 mm slices were removed from the surface of the specimens and documented on photographs. Subchondral lesions and bleeding were found, corresponding to the MR images.
我们评估了在MRI上检测到的膝关节骨挫伤损伤的组织病理学和冷冻切片表现。对3例患者的骨活检进行组织学评估，发现松质骨微骨折、脂肪骨髓水肿和出血。在完整的板层骨小梁之间，发现了与高度破碎的骨小梁混合的透明软骨碎片。另外从2例在机动车事故中死亡的患者身上获取了死后标本。MRI显示，1例膝关节的股骨外侧髁和胫骨外侧平台有骨挫伤损伤，另1例标本有前交叉韧带断裂、内侧半月板撕裂以及胫骨平台和股骨外侧髁的骨挫伤损伤。将标本嵌入生理盐溶液中并冷冻至-30℃。通过旋转冷冻切片术，从标本表面切下1毫米厚的切片，并拍照记录。发现了与MR图像对应的软骨下病变和出血。
