Testa N N, Mazur K U
New York University Medical Center, New York.
Orthop Rev. 1988 Oct;17(10):965-71.
The incidence of heterotopic ossification after total hip replacement using the direct lateral approach is compared to the incidence using the transtrochanteric approach. All the initial ectopic ossification occurred by six months following the implant with noncemented fixation. The direct lateral approach adds slightly to the incidence of ectopic ossification as compared to the transtrochanteric approach. Heterotopic ossification of minimal grade did not interfere with any of the planar motions of the hip, whereas severe ectopic ossification disabled the hip in several planes of motion and restricted it significantly in the others. The more severe form of ectopic bone was more common after the transtrochanteric approach to the hip, while the lighter form developed more often following the direct lateral approach.
比较了采用直接外侧入路进行全髋关节置换术后异位骨化的发生率与采用经转子入路的发生率。所有初始异位骨化均在植入非骨水泥固定物后6个月内出现。与经转子入路相比，直接外侧入路会使异位骨化的发生率略有增加。轻度异位骨化并不影响髋关节的任何平面运动，而严重异位骨化会使髋关节在多个运动平面上功能丧失，并在其他平面上受到显著限制。经转子入路至髋关节后，更严重形式的异位骨更常见，而较轻形式的异位骨在直接外侧入路后更常出现。
