Magnetic Resonance Imaging Assessment of the Femoral Tunnel Position in Medial Patellofemoral Ligament Reconstruction: 用磁共振掃瞄來評估在內側髕韌帶重建手術中股骨隧道的位罿

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• 作者：Tung Leung Kwun^a ; ^{alessandrokwun@yahoo.com.hk" class="auth_mail" title="E-mail the corresponding author} ; Chester Wai Hung Lie^d ; Wai Lam Chan^b ; Nin Yuan Pan^c ; Hung Lit Chow^c ; Kevin Koon Hung Wong^b ; Siu Bon Woo^b ; Wing Cheung Wong^b
• 关键词：femoral tunnel ; magnetic resonance imaging ; medial patellofemoral ligament ; reconstruction
• 刊名：Journal of Orthopaedics, Trauma and Rehabilitation
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：20
• 期：Complete
• 页码：14-18
• 全文大小：984 K

文摘

Correct femoral tunnel position in medial patellofemoral ligament (MPFL) reconstruction is essential to maintain proper biomechanics of the patellofemoral joint throughout the range of movement. Several techniques have been described for MPFL reconstruction, however, there are few reports describing the accuracy of femoral tunnel positioning assessed postoperatively.

Methods

Ten patients having recurrent patellar dislocation with MPFL reconstruction performed in our centre from 2009 to 2013 were analysed. Femoral tunnel position was guided by intraoperative X-ray with landmarks described by Schottle et al, 2007. Postoperative magnetic resonance imaging (MRI) was performed on both knees, and femoral tunnel was assessed with reference to the femoral origin of the MPFL in the nonoperated side.

Results

All cases showed an intact MPFL graft, with the majority demonstrating satisfactory femoral tunnel position based on postoperative MRI.

Conclusion

MPFL reconstruction with anatomic positioning of the femoral tunnel guided by intraoperative X-ray showed satisfactory accuracy in postoperative MRI results, indicating that a well-positioned MPFL graft results in better clinical outcomes.