METHOD FOR SURGICAL TREATMENT OF ARTHROSIS OF THE SHOULDER JOINT WITH LOSS OF BONE MASS OF THE GLENOID Russian patent published in 2021 - IPC A61B17/00 A61B6/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to the field of traumatology, and can be used for the surgical treatment of arthrosis of the shoulder joint with loss of bone mass of the glenoid. Before the operation, the spatial structure of the shoulder joint is determined by the method of multilayer spiral computed tomography (MSCT) by performing 64 slices in one revolution of the "gantry" with a slice thickness of 0.625 mm without tilting the "gantry" with a voltage of 120 kV, a current of 175 mA, in a time of 2.2 seconds at pitch 0.516:1. Further, a survey scan is carried out with a length of 150-170 mm. The construction of multiplanar image reconstructions is carried out in three mutually perpendicular planes. Magnetic resonance imaging (MRI) is used to assess the condition of the surrounding soft tissues, vascular and nervous structures. Dolphin Imaging creates a computer model of the bones of the patient's shoulder joint involved in the pathological process with its individual anatomical features and deformities of the articular process of the scapula - the glenoid. The axis of implantation of the virtual metaglene model and the length of its leg are determined, the size of the bone defect of the articular process of the scapula is determined, as well as the size and shape of the bone autograft model. Virtual implantation of the metaglene model into the articular process of the scapula is performed with imitation of bone grafting of the articular process of the scapula involved in the pathological process, and its correctness is checked. Plastic models of the articular process of the scapula and the cylindrical bone block, as well as the guide of the central wire, are made using 3D printing. Surgical treatment is performed.

EFFECT: method provides a sufficient volume of active and passive abduction and flexion of the shoulder in the shoulder joint, ensuring the medialization of the point of rotation of the shoulder in the shoulder joint for a more complete inclusion of the function of abduction and flexion of the deltoid muscle, ensuring sufficient preservation of the patient's motor activity in the early postoperative period due to the complex preoperative joint examination with the creation of a virtual model and the declared surgical procedures.

1 cl, 2 ex