Kumar Arvind, Passey Jigyasa, Khan Rizwan, Arora Rajesh, Kumar Sandeep, Chouhan Dushyant, Jameel Javed
Department of Orthopaedics, Hamdard Institute of Medical Sciences and Research, New Delhi, India.
Department of Anatomy, Maulana Azad Medical College, New Delhi, India.
J Clin Orthop Trauma. 2020 Feb;11(Suppl 1):S66-S70. doi: 10.1016/j.jcot.2019.06.006. Epub 2019 Jun 7.
The primary aim in fixation of the tibial plateau fractures is the restoration of normal anatomy. Evaluation of the widening of the tibial plateau, which has been linked with adverse long term outcomes, still needs precise markers for quantification. The purpose of this study is to analyze the normal limits of tibial plateau widening in the Indian population in relation to the distal femur in a standardized manner to provide important radiological parameters for the same.
We retrospectively analyzed electronically archived true AP radiographs of uninjured normal knee joints during one year between 2018 and 2019. We measured the mediolateral width of the articular surface and extraarticular extent of the tibial plateau and compared them with the distal femoral articular and extra-articular extents. The measurements were compared between the male and female groups.
Tibial plateau articular width was found to be 4% wider in relation to the distal femoral articular surface. The medial articular rim of distal femur matches closely to the medial articular rim of the tibial plateau. The lateral articular rim of distal femur lies medial to the lateral articular rim of tibial plateau with a mean distance of 3.49 mm.
Owing to individual variations in bony extents around the knee, the differential extent of tibial plateau relative to distal femur would be a more reliable parameter than absolute measurements. Medially the articular extent of distal femur matches closely with the articular extent of tibial plateau while the lateral extra-articular extent of distal femur matches closely with the lateral tibial articular extent. Gender-based differences do not significantly affect these two parameters.
胫骨平台骨折固定的主要目标是恢复正常解剖结构。胫骨平台增宽与不良长期预后相关，对其评估仍需要精确的量化指标。本研究的目的是以标准化方式分析印度人群中胫骨平台相对于股骨远端增宽的正常限度，以提供相关重要的放射学参数。
我们回顾性分析了2018年至2019年期间电子存档的未受伤正常膝关节的正位X线片。我们测量了胫骨平台关节面的内外侧宽度和关节外范围，并将其与股骨远端关节面和关节外范围进行比较。对男性和女性组的测量结果进行了比较。
发现胫骨平台关节面宽度相对于股骨远端关节面宽4%。股骨远端的内侧关节边缘与胫骨平台的内侧关节边缘紧密匹配。股骨远端的外侧关节边缘位于胫骨平台外侧关节边缘的内侧，平均距离为3.49毫米。
由于膝关节周围骨范围的个体差异，胫骨平台相对于股骨远端的差异程度将是比绝对测量更可靠的参数。在内侧，股骨远端的关节范围与胫骨平台的关节范围紧密匹配，而在外侧，股骨远端的关节外范围与胫骨外侧关节范围紧密匹配。基于性别的差异对这两个参数没有显著影响。
