Instrument for positioning shoulder prosthesis of scapula implant on scapula, has guide barrel including axis located at distance of bent palpation portion corresponding to distance separating implant's lower edge and axis of insertion pipe

摘要

The instrument has a feeler (2) comprising bent palpation portions (9a) supported against top of a pillar (101) of a scapula (100) and immediately below a glenoid cavity of the scapula. A barrel guides a pin (50), and includes an axis located at a given distance of the bent palpation portion, where the distance corresponds to the distance separating lower edge of the implant and an axis of an insertion pipe of a scapula implant on the pin. The feeler is split to allow lateral disengagement of the feeler with respect to the pin.