ARTÍCULOS MÉDICOS

Cadera y pelvis

Calibrador de medida de la extremidad durante la artroplastia de cadera. (Ing.)

"Calibrador en forma de L para la medida de longitud de la extremidad durante la artroplastia total de cadera."

K. Shiramizu ; M. Naito ; T. Shitama ; Y. Nakamura ; H. Shitama

Abstract:

The existing methods of assessing limb lengthening during total hip arthroplasty (THA) are prone to error because the measurements are not parallel to the limb lengthening axis. In order to address this, we designed a caliper to estimate limb lengthening during THA and evaluated its accuracy compared with our previous device, the straight caliper. Limb lengths were measured in 100 patients. The L-shaped caliper was used in 50 cases and the straight caliper in 50. The correlation between intra-operative and post-operative radiographic measurements was significantly improved using the L-shaped device (p < 0.0001, r = 0.934). This method was extremely accurate in predicting changes in limb length due to surgery.

The Journal of Bone and Joint Surgery.

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