Accuracy of biplane x-ray imaging combined with model-based tracking for measuring in-vivo patellofemoral joint motion

被引：80
作者：
Bey M.J. [1 ]
Kline S.K. [1 ]
Tashman S. [1 ]
Zauel R. [1 ]
机构：
[1] Henry Ford Health Systems, Department of Orthopaedics, Bone and Joint Center, Detroit, MI 48202
来源：
Journal of Orthopaedic Surgery and Research | / 3卷 / 1期
关键词：
Patellar Tracking; Dynamic Accuracy; Anatomical Joint; Tantalum Bead; Patellar Shift;
D O I：
10.1186/1749-799X-3-38
中图分类号：
学科分类号：
摘要：
Background. Accurately measuring in-vivo motion of the knee's patellofemoral (PF) joint is challenging. Conventional measurement techniques have largely been unable to accurately measure three-dimensional, in-vivo motion of the patella during dynamic activities. The purpose of this study was to assess the accuracy of a new model-based technique for measuring PF joint motion. Methods. To assess the accuracy of this technique, we implanted tantalum beads into the femur and patella of three cadaveric knee specimens and then recorded dynamic biplane radiographic images while manually flexing and extending the specimen. The position of the femur and patella were measured from the biplane images using both the model-based tracking system and a validated dynamic radiostereometric analysis (RSA) technique. Model-based tracking was compared to dynamic RSA by computing measures of bias, precision, and overall dynamic accuracy of four clinically-relevant kinematic parameters (patellar shift, flexion, tilt, and rotation). Results. The model-based tracking technique results were in excellent agreement with the RSA technique. Overall dynamic accuracy indicated errors of less than 0.395 mm for patellar shift, 0.875° for flexion, 0.863° for tilt, and 0.877° for rotation. Conclusion. This model-based tracking technique is a non-invasive method for accurately measuring dynamic PF joint motion under in-vivo conditions. The technique is sufficiently accurate in measuring clinically relevant changes in PF joint motion following conservative or surgical treatment. © 2008 Bey et al; licensee BioMed Central Ltd.
引用
收藏
相关论文
共 43 条
  • [1] Hsu H.C., Luo Z.P., Rand J.A., An K.N., Influence of lateral release on patellar tracking and patellofemoral contact characteristics after total knee arthroplasty, J Arthroplasty, 12, pp. 74-83, (1997)
  • [2] Hefzy M.S., Jackson W.T., Saddemi S.R., Hsieh Y.F., Effects of tibial rotations on patellar tracking and patello-femoral contact areas, J Biomed Eng, 14, pp. 329-343, (1992)
  • [3] Chew J.T., Stewart N.J., Hanssen A.D., Luo Z.P., Rand J.A., An K.N., Differences in patellar tracking and knee kinematics among three different total knee designs, Clin Orthop Relat Res, pp. 87-98, (1997)
  • [4] Sakai N., Luo Z.P., Rand J.A., An K.N., In vitro study of patellar position during sitting, standing from squatting, and the stance phase of walking, Am J Knee Surg, 9, pp. 161-166, (1996)
  • [5] Goh J.C., Lee P.Y., Bose K., A cadaver study of the function of the oblique part of vastus medialis, J Bone Joint Surg Br, 77, pp. 225-231, (1995)
  • [6] Sandmeier R.H., Burks R.T., Bachus K.N., Billings A., The effect of reconstruction of the medial patellofemoral ligament on patellar tracking, Am J Sports Med, 28, pp. 345-349, (2000)
  • [7] Heegaard J., Leyvraz P.F., Van Kampen A., Rakotomanana L., Rubin P.J., Blankevoort L., Influence of soft structures on patellar three-dimensional tracking, Clin Orthop Relat Res, pp. 235-243, (1994)
  • [8] Van Kampen A., Huiskes R., The three-dimensional tracking pattern of the human patella, J Orthop Res, 8, pp. 372-382, (1990)
  • [9] Ahmed A.M., Duncan N.A., Tanzer M., In vitro measurement of the tracking pattern of the human patella, J Biomech Eng, 121, pp. 222-228, (1999)
  • [10] Kwak S.D., Ahmad C.S., Gardner T.R., Grelsamer R.P., Henry J.H., Blankevoort L., Ateshian G.A., Mow V.C., Hamstrings and iliotibial band forces affect knee kinematics and contact pattern, J Orthop Res, 18, pp. 101-108, (2000)
12345