A guide operates in the creation of a bone spur to facilitate harvesting a quadriceps tendon and includes an end having a width equal to a desired graft width with a terminal slope equal to a cutting angle desired. In use, the guide may be initially positioned parallel to the femur to form guide cuts in the patella. The guide is then rotated ninety degrees to allow an angled cut at the guide cut. The guide is again rotated, this time one hundred eighty degrees and a second angled cut made on the other guide cut. A final lateral cut is made and the bone spur may be lifted from the patella.

An orthopaedic surgical instrument includes a patella trial and drill guide that may be used to both perform a surgical trial of the patellofemoral joint and guide the surgeon in drilling a number of anchor holes in the patella of the patient.

A bone drill guiding device, comprising: a drill entry portion including a first contact point for engaging a first side of a bone, wherein the drill entry portion includes at least one bore sized to receive a bone drill therethrough; a bone securing portion including a second contact point for engaging a second side of the bone, the second side of the bone opposite the first side of the bone; wherein the device includes a third contact point on one of the drill entry portion and the bone securing portion; and a coupling to selectably rigidly connect the drill entry portion and the bone securing portion for positioning the drill entry portion and the bone securing portion on opposite sides of the bone.

Disclosed herein are a surgical system for patella tracking and a method for selecting a properly-sized patellar implant utilizing the same. The surgical system may include first and second trackers and a patellar tracking system. The first tracker may be configured to contact an unresected or a resected patella, and the second tracker may be configured to contact a bone. The patellar tracking system may be configured to track the first and second trackers during patellar flexion and extension to generate patellar range of motion and patellar trial range of motion. A method for selecting a patellar implant may utilize the first and second trackers and the patellar tracking system.

A method for designing and making a rig that includes a hollow tubular shell, and the interior of said shell defines at least first and second intersecting cylinders. The method includes identifying a damage area, presenting a 3D view of identified damage area, generating a 3D model of a virtual rig, and producing a rig according to the virtually created rig. The generating includes virtually placing in 3D view a shape covering or partly covering damage area, and creating, based on the position of the virtually placed shape, a position of hollow tubular rig shell of the virtual rig; and selecting the at least first and second intersecting cylinders of the virtual rig, based on the size and form of the virtually placed shape, and creating a positioning surface of the virtual rig which is a bone and/or cartilage-engaging end of hollow tubular shell.

A method of attaching prosthetic implants to bone, applicable to tibia, patella, acetabulum, glenoid, or femur, includes trimming an articular surface of the bone, leaving a trimmed surface. Holes are punched or drilled into the surface in a predetermined array before polymethyl methacrylate bone cement is used to attach the surface to the implant. In an embodiment, the holes are punched by placing a punch-plate with sharpened punch spikes on the surface, and striking the punch plate to drive punches into the trimmed surface. In another embodiment, holes are drilled using a drilling template with predrilled guidance holes placed on the surface of the bone. In another embodiment, holes are drilled by positioning a robotic drill over the trimmed surface; adjusting a drilling pattern of the robotic drill according to the trimmed surface; and using the robotic drill to drill holes of predetermined depth according to the drilling pattern.

A cutting assembly for cutting a tapered cut in a hard material includes a cutting tool and a cutting guide, the cutting tool including a cutting profile shaped to enable the creation of a tapered cut in said hard material, the cutting guide co-operating with the cutting tool and including a distal end which fits a cut profile formed by the cutting tool and a cutting guide opening which guides a secondary cutter introduced therein to complete the tapered cut.

The present invention relates to an orthopedic surgical pliers-like tool (1) for performing surgery on the patella bone, comprising: at least a couple of jaws (2, 3) coupled to corresponding handle members (12, 13) pivotally mounted with a hinge bolt (5) in relation with one another; a distal clamp portions (8, 9) on each jaw (2, 3) for gripping and holding at least the periphery of a patella bone; an intermediate force transmission mechanism (4) between the tool handle members (12, 13) and the jaws (2, 3); a couple of arms (20, 30) in said intermediate force transmission mechanism (4) structurally independent from the handle members (12, 13) and interposed between the handle members (12, 13) and the jaws (2, 3); an elastic member (25, 35) in each arm (20, 30) for coupling each arm to a corresponding handle member (12, 13) in a first linking point (38, 39); a second more distal linking point (31, 33) in each arm (20, 30) engaging a corresponding distal end (43, 42) of a handle member (12,13); the first linking point (38, 39) of one arm (20, 30) and the second linking point (31, 33) of the other arm being cross linked to the same handle member (12, 13).

Plates for patella fracture reduction and fracture reduction devices are described. More particularly plates and devices for patella reduction that are universally fit to a front surface or perimeter of a patella and include a plurality of attachment holes disposed therein for receiving a fastener. In some embodiments, the plates include removable tab members.

An orthopaedic surgical instrument system includes a compression socket configured for coupling with a selected one of a number of compressible bases. Each compressible base is shaped to conform with a posterior surface of either a dome patella implant component or an anatomical patella implant component.