Higuchi F, Shiba N, Inoue A, Wakebe I
Department of Orthopaedic Surgery, Kurume University, Fukuoka, Japan.
J Arthroplasty. 1995 Dec;10(6):851-4. doi: 10.1016/s0883-5403(05)80086-5.
The authors have experienced a fracture in the ceramic head in a total hip arthroplasty in three cases. Two of these were comminuted and the other was a hair-line fissure. A foreign body, perhaps from the operation, existed between the neck of the stem and the head in two cases (one in a comminuted fracture and the other in the fissure fracture). The other case had no foreign body, and, judging from the serial radiographs, the fracture was probably caused by weight-bearing stress. Care must be taken during operation to avoid interposing any foreign body in the modular ceramic head total hip arthroplasty, and the weight-bearing stress factor must be considered as an indication for a ceramic head fracture in young active patients.
作者在全髋关节置换术中遇到3例陶瓷股骨头骨折。其中2例为粉碎性骨折，另1例为发丝样裂缝骨折。2例（1例粉碎性骨折，1例裂缝骨折）在柄部颈部与股骨头之间存在可能来自手术的异物。另一例没有异物，从系列X线片判断，骨折可能由负重应力引起。在模块化陶瓷股骨头全髋关节置换术中，手术时必须小心避免在其中置入任何异物，对于年轻活跃患者，负重应力因素必须被视为陶瓷股骨头骨折的一个指征。
