• Kadir Ilker Yildiz, Cetin Isik, Osman Tecimel, Nurdan Cay, Ahmet Firat, Ramazan Akmese, and Murat Bozkurt.
• Department of Orthopedics, Faculty of Medicine, Ataturk Training and Research Hospital, Yildirim Beyazit University, Ankara, Turkey.
• Arch Orthop Trauma Surg. 2013 Dec 1; 133 (12): 165716631657-63.

BackgroundNo previous description has been made about an objective method to test the graft resistance in MPFL reconstruction intraoperatively. In our study, we aimed to obtain intraoperative objective data about the graft resistance using contact pressure-sensitive surfaces and measuring pressure formed under the graft.Materials And MethodsIn 2012, double-layered contact pressure-sensitive Fuji Prescale Film bands were placed under MPFL in 15 fresh-frozen high above-knee amputates (Group 1) and under graft in 10 patients who underwent MPFL reconstruction (Group 2). Measured values at different flexion angles were compared between and in groups.ResultsStatistical analysis was performed by Student's t test. It has been found that the pressure under the graft was higher in patients having reconstruction as compared to the pressure under natural MPFL. Decreasing pressure values were observed with increasing flexion angles in both groups.ConclusionContact pressure-sensitive surfaces provided objective data when placed under the graft in natural MPFL and during surgery. Therefore, they may be used as an objective marker providing information about graft resistance.

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