3 results about "Glenoid cavity" patented technology

The application discloses a surgical guiding device for orthopedics. The positioning member comprises a front section and a rear section which are sequentially connected from front to back, and the rear end of the front section and the front end of the rear section are fixedly connected. The sliding member is slidably installed on the rear section of the positioning member through a guide rail, and is provided with a scale from the front end to the rear end. The locking member is arranged on the positioning member, and the sliding member is locked at a selected position on the positioning member. The device allows flexible adjustment of the drilling position through the sliding member in vitro, and realizes precise drilling of parallel double bone tunnels of the glenoid cavity through a small incision. The device has the advantages of simple operation, small trauma, accurate positioning and the like, is suitable for improving the alignment accuracy of the bone tunnel and the success rate of the surgery in the shoulder glenoid bone grafting surgery, and greatly simplifies the operation steps.

The invention concerns a system for assisting a surgeon for performing shoulder arthroplasty in a surgical field comprising a glenoid cavity of a patient's shoulder, the system comprising: - at least one extension pole intended to be attached to an instrument, the extension pole being configured to be non-magnetic-field-disturbing by material and / or by design; - an EM localization system comprising - an EM transmitter; - an EM instrument receiver attached to the extension pole, the extension pole permitting to keep the EM instrument receiver away from the instrument to which it is attached; - an EM bone receiver intended to be located near the glenoid cavity, preferably rigidly attached to a scapula of the patient's shoulder; - a retractor assembly adapted for retracting tissues around the glenoid cavity, the retractor assembly comprising at least one retractor configured to be non-magnetic- field-disturbing by material and / or by design, the EM transmitter being attached to said retractor configured to be non-magnetic-field-disturbing by material and / or by design, the EM transmitter, the EM instrument receiver and the EM bone receiver being configured for operating together by being arranged relative to each other within a functional area preliminary defined by a range of the EM transmitter, the extension pole being configured not to interfere with a-magnetic-field in the functional area.

A method for implanting a shoulder prosthesis includes distracting a gleno-humeral joint, inserting into the distracted joint a hollow main body having a substantially cylindrical or truncated-cone shape, laterally accessing inside the hollow main body through a second opening defined by at least one lateral element, and performing at least one of bone machining of the glenoid cavity and implantation of one or more glenoid prosthesis components through the first opening while the main body maintains the joint distracted. The main body includes a first end configured to abut a humeral portion, and a substantially annular second end configured to abut a glenoidal portion. The substantially annular second end defines a first opening sized to surround a glenoid cavity. The at least one lateral element maintains a three-dimensional spaced structure between the first and second ends.