Weight-bearing-induced displacement and migration over time of fracture fragments following split depression fractures of the lateral tibial plateau A CASE SERIES WITH RADIOSTEREOMETRIC ANALYSIS

作者：Solomon L B^*; Callary S A; Stevenson A W; McGee M A; Chehade M J; Howie D W

来源：Journal of Bone and Joint Surgery-British Volume, 2011, 93B(6): 817-823.

DOI：10.1302/0301-620X.93B6.26122

We investigated the stability of seven Schatzker type II fractures of the lateral tibial plateau treated by subchondral screws and a buttress plate followed by immediate partial weight-bearing. In order to assess the stability of the fracture, weight-bearing inducible displacements of the fracture fragments and their migration over a one-year period were measured by differentially loaded radiostereometric analysis and standard radiostereometric analysis, respectively. The mean inducible craniocaudal fracture fragment displacements measured -0.30 mm (-0.73 to 0.02) at two weeks and 0.00 mm (-0.12 to 0.15) at 52 weeks. All inducible displacements were elastic in nature under all loads at each examination during follow-up. At one year, the mean craniocaudal migration of the fracture fragments was -0.34 mm (-1.64 to 1.51).
Using radiostereometric methods, this case series has shown that in the Schatzker type II fractures investigated, internal fixation with subchondral screws and a buttress plate provided adequate stability to allow immediate post-operative partial weight-bearing, without harmful consequences.

• 出版日期2011-6