FIELD: medicine.
SUBSTANCE: invention relates to medicine, namely, to traumatology and orthopaedics, and can be used for surgical treatment of Hill-Sachs osteochondral lesions of the humeral head. At the preoperative stage, computed tomography of the shoulder joints is performed while scanning at no more than a 1 mm step of the positioning stage in the high-resolution mode while the patient is stationary for the duration of obtaining a full set of tomograms. A computed three-dimensional model of the injured shoulder joint is built; a virtual model of an individual implant is created using hybrid parametric modelling accounting for the post-traumatic deformation of the humeral head and a mirror copy of the three-dimensional model of the humeral head of the contralateral joint. The articular surface of the implant is modelled smooth, while the inner surface in contact with the bone tissue is modelled porous. At least two screw holes are modelled at a distance of at least 5 mm from each other so that the screws are inserted into the strongest areas of the humeral head, according to the computed tomography data. Topological optimisation of the model is performed. An individual implant is made on a 3D printer from a titanium-aluminium-vanadium alloy based on the created model. The articular surface of the implant is polished, the humeral head defect is replaced by screwing the implant through the holes with the set directions of screw insertion.
EFFECT: increase in the effectiveness of surgical treatment, restoration of the biomechanics of the shoulder joint, reduction in the risk of recurrences of humeral head dislocation due to the restoration of the humeral head until matching the anatomical shape.
1 cl, 14 dwg, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SELECTING SURGICAL TREATMENT FOR CHRONIC INSTABILITY OF SHOULDER JOINT | 2022 |
|
RU2812720C1 |
| METHOD FOR EVALUATING THE INTERACTION OF SHOULDER JOINT ARTICULAR SURFACE DEFECTS AT PLANNING OF SURGICAL TREATMENT OF ANTERIOR INSTABILITY | 2017 |
|
RU2661717C2 |
| METHOD OF PRIMARY TOTAL SHOULDER REPLACEMENT IN THE POST-TRAUMATIC DEFORMATIONS OF THE GLENOID SURFACE OF THE BLADE WITH AN INDIVIDUAL ENDOPROSTHESIS | 2018 |
|
RU2702014C1 |
| METHOD FOR PREVENTION OF POSTERIOR SHOULDER DISTRUCTION | 2022 |
|
RU2777229C1 |
| METHOD OF SURGICAL TREATMENT OF POSTERIOR LINKED FRACTURE-DISLOCATIONS OF THE HUMERUS USING AN INDIVIDUAL METAL AUGMENT | 2022 |
|
RU2800667C1 |
| METHOD FOR ARTHROSCOPIC AUTOPLASTY OF SIGNIFICANT BONE DEFECT OF GLENOID IN CHRONIC ANTERIOR SHOULDER INSTABILITY USING 3D PRINTING TECHNOLOGY | 2023 |
|
RU2818061C1 |
| IMPLANT FOR REPLACING THE AREA OF A BONE DEFECT ON THE ANTERIOR SURFACE OF THE GLENOID OF THE SHOULDER BLADE AND A MANIPULATOR FOR ITS INSTALLATION | 2021 |
|
RU2766250C1 |
| INDIVIDUAL 3D IMPLANT FOR SHOULDER JOINT REPLACEMENT IN SHOULDER DEFECTS AND METHOD OF SHOULDER JOINT ENDOPROSTHETICS IN SHOULDER DEFECTS | 2022 |
|
RU2787706C2 |
| METHOD OF SHOULDER JOINT ENDOPROSTHETICS FOR TOTAL SHOULDER DEFECTS | 2022 |
|
RU2796765C2 |
| SET OF METAL IMPLANT WITH AUXILIARY POLYMER PRODUCTS FOR SURGICAL TREATMENT OF SEVERE INJURIES AND CONSEQUENCES OF INJURIES OF SHOULDER JOINT WITH TRAUMATIC LOSS OF BONE MASS OF GLENOID USING REVERSE TOTAL PROSTHETICS | 2021 |
|
RU2769746C1 |
