GAP GAUGE AND UNIT CAPABLE OF CHECKING FLEXION GAP PRIOR TO CUTTING OF POSTERIOR FEMUR

摘要

The present invention relates to total knee arthroplasty used on the knee joint including the tibia and femur that are to be treated and, more specifically, to a gap gauge and a unit which are capable of checking a flexion gap prior to cutting of the posterior femoral area. This gap gauge and unit comprise a measurement part that can measure the distance between a posterior femoral cut surface and a proximal tibial cut surface during an artificial knee joint operation. The measurement part is set in position by being coupled to a slot in a posterior femoral cutting guide positioned on a distal femoral cut surface, thus enabling the flexion gap to be checked prior to the cutting of the posterior femur. The measurement part includes a first measurement part that is positioned in a space between the proximal tibial cut surface and the cutting guide and measures the flexion gap, prior to the cutting of the posterior femur. The first measurement part includes: a cutting slot coupled part coupled to the slot of the cutting guide; and a tibia resting part resting on the proximal tibial cut surface. The cutting slot coupled part includes: a blade configured to be couplable to a cutting slot of the cutting guide and inserted into the cutting slot of the cutting guide; and a cutting block accommodation groove that accommodates the lower portion of the cutting guide when the blade is inserted, thereby ensuring the insertion depth of the gap gauge.