Knight D J, Rymaszewski L A, Amis A A, Miller J H
Glasgow Royal Infirmary, Scotland, UK.
J Bone Joint Surg Br. 1993 Jul;75(4):572-6. doi: 10.1302/0301-620X.75B4.8331111.
Compression testing of cadaver specimens showed that excision of the radial head allowed proximal radial displacement. The insertion of a metallic radial head restored normal mechanics, while a silicone rubber implant did not. We reviewed 31 of 36 comminuted fractures of the radial head, 21 associated with dislocation or ulnar fracture, which had been treated by primary replacement with a Vitallium prosthesis. At a mean follow-up of 4.5 years, there was reliable restoration of stability and prevention of proximal radial migration. There had been no dislocations or prosthetic failures, but two implants had been removed for loosening. The prosthesis is recommended for use as a spacer to stabilise the elbow after severe injuries while the soft tissues heal.
尸体标本的压缩试验表明，桡骨头切除会导致桡骨近端移位。植入金属桡骨头可恢复正常力学性能，而硅橡胶植入物则不能。我们回顾了36例桡骨头粉碎性骨折中的31例，其中21例伴有脱位或尺骨骨折，这些病例均采用维氏合金假体一期置换治疗。平均随访4.5年时，稳定性得到可靠恢复，桡骨近端移位得到预防。没有发生脱位或假体失败，但有两枚植入物因松动而被取出。建议将该假体用作间隔物，在严重损伤后稳定肘关节，直至软组织愈合。
