三关节成形术中胫骨组件髓内与髓外对线的比较。
Intramedullary versus extramedullary alignment of the tibial component in the Triathlon knee.
机构信息
Department of Orthopaedics, Cappagh National Orthopaedic Hospital, Finglas, Dublin 13, Ireland.
出版信息
J Orthop Surg Res. 2011 Aug 20;6:44. doi: 10.1186/1749-799X-6-44.
BACKGROUND
Long term survivorship in total knee arthroplasty is significantly dependant on prosthesis alignment. Our aim was determine which alignment guide was more accurate in positioning of the tibial component in total knee arthroplasty. We also aimed to assess whether there was any difference in short term patient outcome.
METHOD
A comparison of intramedullary versus extramedullary alignment jig was performed. Radiological alignment of tibial components and patient outcomes of 103 Triathlon total knee arthroplasties were analysed.
RESULTS
Use of the intramedullary was found to be significantly more accurate in determining coronal alignment (p = 0.02) while use of the extramedullary jig was found to give more accurate results in sagittal alignment (p = 0.04). There was no significant difference in WOMAC or SF-36 at six months.
CONCLUSION
Use of an intramedullary jig is preferable for positioning of the tibial component using this knee system.
背景
全膝关节置换术的长期存活率在很大程度上取决于假体的对线。我们的目的是确定哪种对线引导器在全膝关节置换术中更能准确地定位胫骨组件。我们还旨在评估短期患者结果是否存在差异。
方法
对髓内与髓外定位夹具进行了比较。分析了 103 例 Triathlon 全膝关节置换术中胫骨组件的放射学对线和患者的结果。
结果
发现髓内定位器在确定冠状面对线时明显更准确（p = 0.02），而髓外夹具在确定矢状面对线时更准确（p = 0.04）。在 6 个月时，WOMAC 或 SF-36 没有显著差异。
结论
在使用该膝关节系统时，使用髓内夹具来定位胫骨组件更可取。
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