Kiefer Hartmuth
Department of Orthopaedic and Trauma Surgery, Lukas Hospital, Hindenburgstrasse 56, 32257 Buende, Germany.
Int Orthop. 2003;27 Suppl 1:S37-42.
The kinematic cup navigation procedure is a surgically simple technique for improving the precision of cup placement. Without CT scans, a reduction of cup malpositions is possible. The rate of desired cup inclination and anteversion angles is markedly increased as shown by the first results of 147 navigated cups. While the inclination is reached precisely with a tendency to a slightly larger angle than desired, the postoperative anteversion angle shows a somewhat bigger variation than the intraoperatively navigated angle with a tendency to less anteversion. This might be due to a lack of information about the real pelvis position during X-ray control.
dislocations of the prostheses might be reduced significantly. The kinematic cup navigation with the use of the OrthoPilot is an additional and useful tool for the surgeon. The procedure is simple, quick, and cost effective, does not cause specific complications, and does not require additional CT or MRI scans. Further improvement can be expected by additional hip stem navigation techniques in the near future.
运动学髋臼杯导航技术是一种手术操作简单的技术，可提高髋臼杯置入的精度。无需进行CT扫描，即可减少髋臼杯位置不当的情况。147个导航髋臼杯的初步结果表明，理想的髋臼杯倾斜角和前倾角的达成率显著提高。虽然能够精确达到倾斜角，且有稍大于理想角度的趋势，但术后前倾角的变化比术中导航角度稍大，且有前倾角减小的趋势。这可能是由于在X线检查时缺乏关于真实骨盆位置的信息。
假体脱位可能会显著减少。使用OrthoPilot进行运动学髋臼杯导航对外科医生来说是一种额外且有用的工具。该操作简单、快速且经济高效，不会引起特定并发症，也不需要额外的CT或MRI扫描。预计在不久的将来，通过额外的髋关节柄导航技术可实现进一步改进。
