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Ankle arthroplasty systems and methods

A technology for ankle joints, articular surfaces, applied in the field of surgical operating systems

Pending Publication Date: 2020-06-30
LIMA CORPORATE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The various systems and methods of the present disclosure have been developed in response to the current state of the art, and particularly in response to problems and needs in the art that have not been fully addressed by existing systems and methods of ankle replacement

Method used

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  • Ankle arthroplasty systems and methods
  • Ankle arthroplasty systems and methods
  • Ankle arthroplasty systems and methods

Examples

Experimental program
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preparation example Construction

[0164] The result can be as Figure 6B and 10B Formation of preparation surface 620 is shown. combine Figure 11A and 11B Fabrication surface 620 will be further shown and described.

[0165] Figure 11A and 11B A side elevational view, a cross-sectional view, and an enlarged cephalic frontal view, respectively, of the talus 420 with the talus base 410, talus burr holder 600, and burr 610 as shown in Figs. Figure 10A and 10B positioning shown. In addition to the slot for the keel 212 of the talar prosthesis 102, the shape of the preparation surface 620 is shown in more detail.

[0166] like Figure 11A As shown, the fabrication surface 620 may have a side cross-sectional shape in planes located in the anterior-posterior direction 130 and the cranio-caudal direction 134, the planes being the same as those shown in Figure 2C The side views of the talar prosthesis 102 shown are closely matched. The preparation surface 620 may have a convex anteroposterior curvature 1...

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Abstract

An ankle arthroplasty system (100) may have a talar prosthesis (102) and a tibial prosthesis (104), each of which has an articular surface (110, 120) and a bone engagement surface (112, 122). Each bone engagement surface may have an anterior-posterior curvature and a medial-lateral curvature with a convex shape. A burr (610, 800, 830, 860) with a rotatable cutting element (720, 820, 850, 880) maybe used to form a prepared surface on the talus or the tibia to receive the corresponding prosthesis. A cutting guide may be used to guide motion of the burr; the cutting guide may include a base andan arm movably coupled to the base. One of the base and the arm may have a guide surface, and the other may have a follower that slides along the guide surface to constrain motion of the burr such that the prepared surface has at least one concave curvature and one convex curvature.

Description

technical field [0001] The present disclosure relates to surgical systems and methods. More specifically, the present disclosure relates to implants and related methods for ankle replacement surgery. Background technique [0002] A joint arthroplasty procedure is a surgical procedure in which one or more articular surfaces of a joint are replaced by prosthetic articular surfaces. Such processes are becoming more and more common. In particular, ankle replacement (Ankle arthroplasty) may be required due to trauma or degeneration of the natural articular surfaces of the tibia and talus. [0003] For successful ankle replacement surgery, it is important that the postoperative motion characteristics of the ankle joint mimic as closely as possible those of the natural ankle joint. Furthermore, it is desirable to keep the ankle implant in place during subsequent function of the joint. Going a step further, expect the ankle replacement procedure to proceed quickly and smoothly, ...

Claims

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Application Information

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IPC IPC(8): A61F2/42A61B17/16A61B17/17
CPCA61F2/4202A61F2002/4205A61F2002/4207A61B17/1775A61B17/1682A61F2002/30878A61B17/1615A61F2/4606A61B17/56A61B2017/568
Inventor 查尔兹·萨尔茨曼阿尔伯特·H·伯斯汀乔纳森·T·德兰
Owner LIMA CORPORATE SPA
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