Fenestrated humeral prosthesis and methods of shoulder arthroplasty
A humeral prosthesis includes a stem component with a lateral stem body and a head component joined by an inclination component or block. The stem component and the inclination component are provided with openings/holes/fenestrations/eyelets that allow attachment of soft tissue (and optional fracture repair). A first plurality of suture holes are provided to the lateral stem body and a second plurality of suture holes are provided on the medial aspect of the inclination block. These suture holes are intended for subscapularis or lesser tuberosity reattachments. Inclination angle, radial offset, and version are adjustable and are separately and independently set and fixed.
1. A method of shoulder repair, the method comprising the steps of:
providing a humeral prosthetic comprising:
a humeral stem adapted to be introduced into a patient's humerus, the stem having an upper stem portion, a longitudinal axis, and a first plurality of eyelets within the upper stem portion and disposed about parallel to the longitudinal axis of the humeral stem;
an elongated inclination component coupled to the upper stem portion of the humeral stem, said elongated inclination component provided with an opening to provide access to a screw to set and fix a position of the inclination component at an inclination angle in relation to the humeral stem, the inclination component further including a second plurality of eyelets provided within the inclination component and disposed about parallel to a longitudinal axis of the inclination component, the inclination component further having an elongate convex surface;
a coupling adapter including means for setting a version the coupling adapter comprising a plate and an elongated concavity formed on a side of the plate, the elongate concavity complementing the elongate convex surface of the inclination component; and
a spherical head including means for setting and fixing a radial offset, wherein the humeral stem interfaces with the coupling adapter via said elongated inclination component, and the coupling adapter interfaces with the spherical head;
providing the humeral prosthetic within a patient's humerus;
attaching soft tissue to the humeral prosthetic by employing the first and second plurality of eyelets;
passing first sutures through the first plurality of eyelets;
passing second sutures through the second plurality of eyelets;
implanting the humeral prosthetic into the patient's humerus, so that the stem interfaces with the coupling adapter, and the coupling adapter interfaces with the spherical head;
placing the second sutures through a medial aspect of the soft tissue in a direction from superior to inferior; and
tying the first sutures with the second sutures to compress the soft tissue.
2. The method of claim 1 , further comprising independently adjusting the radial offset of the spherical head, the inclination angle of the humeral stem, and the version of the adapter.
3. The method of claim 1 , wherein the soft tissue is supraspinatus, subscapularis or biceps tendon.
4. The method of claim 1 , wherein the humeral stem has a length of about 60 mm.