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The device is formed by: a Aluminium sliding arm. b Methacrylate block. This block is used to fix the proximal part of the specimen to the device using a aluminium pin. c Aluminium pin. d Movable clamp used to adjust to lower leg length differences. e Fibreglass footplate. f Calibrated spring. g Movable methacrylate block. h Grip, used to vary the distance between the footplate (e) and the aluminium block (g)
