Iwabu S, Sasaki T, Kameyama M, Teruya T, Horiuchi Y, Yabe Y
Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
J Bone Joint Surg Br. 1998 Jul;80(4):726-30. doi: 10.1302/0301-620x.80b4.8081.
We observed the healing process under rigid external fixation after Salter-Harris type-1 or type-2 physeal separation at the proximal tibia in immature rabbits. Metaphyseal vessels grew across the gap with little delay; the site of separation then came to lie in the metaphysis and was bridged by endochondral ossification. Union was achieved within two days in all rabbits. Progression of endochondral ossification repaired the separated physis, thus showing 'primary healing of physeal separation'. This depends on accurate reduction and stable fixation to allow the survival of vessels across the gap.
我们观察了未成熟兔胫骨近端Salter-Harris I型或II型骨骺分离后在坚强外固定下的愈合过程。干骺端血管几乎没有延迟地跨越间隙生长；然后分离部位位于干骺端，并通过软骨内成骨形成桥接。所有兔子均在两天内实现愈合。软骨内成骨的进展修复了分离的骨骺，从而显示出“骨骺分离的一期愈合”。这取决于精确复位和稳定固定，以使血管跨越间隙存活。
