Evaluation of the flexion gap by axial radiography of the distal femur

Y. Tokuhara; Y. Kadoya; K. Kanekasu; M. Kondo; A. Kobayashi; K. Takaoka

doi:10.1302/0301-620X.88B10.17793

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Knee

Evaluation of the flexion gap by axial radiography of the distal femur

Y. Tokuhara
Y. Kadoya
K. Kanekasu
M. Kondo
A. Kobayashi
K. Takaoka

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Evaluation of the flexion gap by axial radiography of the distal femur

Tokuhara Y, Kadoya Y, Kanekasu K, Kondo M, Kobayashi A, Takaoka K. Evaluation of the flexion gap by axial radiography of the distal femur. J Bone Joint Surg Br. 2006;88-B(10):1327-1330. doi:10.1302/0301-620X.88B10.17793

Tokuhara, Y., et al. “Evaluation of the flexion gap by axial radiography of the distal femur.” The Journal of Bone & Joint Surgery British Volume, vol. 88-B, no. 10, 2006, pp. 1327-1330., https://doi.org/10.1302/0301-620X.88B10.17793

Tokuhara, Y., Kadoya, Y., Kanekasu, K., Kondo, M., Kobayashi, A., & Takaoka, K. (2006). Evaluation of the flexion gap by axial radiography of the distal femur. The Journal of Bone & Joint Surgery British Volume, 88-B(10), 1327-1330. https://doi.org/10.1302/0301-620X.88B10.17793

Tokuhara, Y., Kadoya, Y., Kanekasu, K., Kondo, M., Kobayashi, A. and Takaoka, K. (2006) “Evaluation of the flexion gap by axial radiography of the distal femur.” The Journal of Bone & Joint Surgery British Volume, 88-B(10), pp. 1327-1330. Available at: https://doi.org/10.1302/0301-620X.88B10.17793

Tokuhara, Y., Y. Kadoya, K. Kanekasu, M. Kondo, A. Kobayashi, and K. Takaoka. “Evaluation of the flexion gap by axial radiography of the distal femur.” The Journal of Bone & Joint Surgery British Volume 88-B, no. 10 (2006): 1327-1330. https://doi.org/10.1302/0301-620X.88B10.17793

Tokuhara Y, Kadoya Y, Kanekasu K, Kondo M, Kobayashi A, Takaoka K. Evaluation of the flexion gap by axial radiography of the distal femur. J Bone Joint Surg Br. 2006 Oct 1;88-B(10):1327-1330. https://doi.org/10.1302/0301-620X.88B10.17793

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Abstract

The shape of the flexion gap in 20 normal knees was evaluated by axial radiography of the distal femur, and the results compared with those obtained in a previous study by MRI. The observed asymmetry was reduced by 29% using radiography, with a mean value of 3.6° (1.5° to 6.3°) compared with that obtained by MRI of 5.1° (2.6° to 9.5°), a mean discrepancy of 1.49°. The results obtained by radiography and MRI showed a strong correlation (r = 0.78).

Axial radiography is acceptable for the evaluation of the flexion gap and is less expensive and more comfortable to perform than MRI. Additionally, no metallic artefact occurs when the radiological method is used for assessment after arthroplasty.

Correspondence should be sent to Dr Y. Kadoya; e-mail: kadoya@orh.go.jp

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