Humeral sliding cup with clips...

Preparation of humerus in traumatology

Humeral stage

It is suitable to begin with excision and cutting of the humeral head. The cephalic part is often freed of any connection with soft parts by a line going through the anatomic cervix, and consequently it is easily removed by retracting the tuberosities. Excision of the humeral head, often dislocated in the back, is operated with forceps.

In case of fracture, it is sometimes necessary to cut the epiphysis again in order to fit with the pattern of the prosthesis.

For smashes with cervico-diaphysis occurence, it is important to retrieve the exact length of the arm and so doing to restore isometric balance. For this, we use a device made of a sliding indicator between centres which enables to recover on operated side the length of acromion epicondyle previously measured on the unbroken side during the examination before surgery.

By testing without any cement the humeral prosthesis equipped with its cephalic element, the height to which it must fit with diaphysis part can be defined. Tuberosities will be then brought back over prosthesis, as it is under mentioned.

Preparation of the medullar tube of the humerus is first made by catheterization with a long curette.

Study by counterdrawings before surgery gives a fair notion of the permanent prosthesis to be used.

Diameter of required rasps ranges from 8, 10, 12 and 14 mm in accordance with the prosthesis to be used.

We begin with the smaller one up to the size thet meets the best possible closeness to diaphysis.