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Tibial tubercle osteotomy guide

A guide, osteotomy technology, applied in the direction of bone drill guidance, surgery, skull, etc., can solve the problems of using complex multiple units, not suitable for anatomical structures, etc.

Inactive Publication Date: 2017-08-18
BIOMET SPORTS MEDICINE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these systems often include multiple units using complex
Furthermore, commercially available systems are mass-produced and not tailored to a specific patient's anatomy

Method used

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  • Tibial tubercle osteotomy guide
  • Tibial tubercle osteotomy guide
  • Tibial tubercle osteotomy guide

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0058] In Example 1, a patient-specific system for tibial osteotomy can include a patient-specific guide comprising: a guide body defining: a bone having a bone-engaging surface an articulation portion, the bone-engaging surface conforming as a negative surface to the corresponding surface of the patient-specific tibia; and a guide portion, which guides the surgical instrument to a specific location on the patient-specific tibia, wherein, during the pre-operative planning phase The bone-engaging surface and the guide portion are constructed during construction; a patient-specific implantable wedge having a predetermined shape, wherein the wedge can be constructed during a pre-operative planning stage; and a plurality of pins.

[0059] In Example 2, the patient-specific system according to Example 1 can optionally be configured such that the guide portion can include a plurality of apertures defined by the guide body, wherein the plurality of apertures can be configured to The ...

example 7

[0064] In Example 7, a patient-specific system for tibial osteotomy can include a patient-specific guide optionally including a guide body defining a bone engaging surface having a bone engaging surface Part, the bone engaging surface is configured during the preoperative planning stage of tibial osteotomy to be at the patient's tibial tubercle, around the tibial tubercle or near the tibial tubercle as the negative surface of the tibia of the specific patient and a plurality of first apertures positioned along a first straight line relative to the proximal-distal side of the tibia of the particular patient selected during the preoperative planning phase of the tibial osteotomy The axis defines a first predetermined angle.

[0065] In Example 8, the patient-specific system of Example 7 may optionally be configured such that the plurality of apertures are configured to guide insertion of the plurality of pins in the tibia.

[0066] In Example 9, the patient-specific system of a...

example 22

[0079] In Example 22, a method for performing a tibial tuberosity osteotomy on a patient's tibia can include positioning a patient-specific guide on the patient's tibia, wherein the guide includes a guide body, the The guide body defines a bone-engaging portion having a bone-engaging surface configured during a preoperative planning phase of a tibial osteotomy as a negative surface with a particular patient's tibia at the tubercle of the patient's tibia, around the The tubercle or the corresponding surface in the vicinity of the tubercle remains consistent, and the guide body defines a plurality of apertures; the tibia is resected in three intersecting planes using a saw to produce a tubercle flap, wherein the patient-specific guide is Resection provides visual markers; and repositioning the nodular flap in an anterior direction or in an anterior and medial-lateral direction to create a void between the nodular flap and the resected surface of the tibia.

[0080] In Example 23...

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Abstract

Patient-specific guides for a tibial tubercle osteotomy are provided. The guides include a guide body (102, 302) defining a portion with a bone-engaging surface (103, 303) that conforms as a negative surface to a corresponding surface of a specific patient's tibia, and a guide portion that guides a surgical instrument to a specific location on the specific patient's tibia, wherein the bone-engaging surface and guide portion are configured during a pre-operative planning stage. The guide portion can be formed by pins (124) inserted in a plurality of apertures (110, 116, 120), or planar slots (304, 314, 315,). The apertures or slots are positioned in three straight lines (112, 118, 122; or 306, 316, 317) to provide a saw guide for resecting planes in the tibia. An implantable wedge (200a, 200b) to be positioned in the created gap (136), and methods for performing a tibial tubercle osteotomy with the patient-specific guides are also provided.

Description

[0001] priority claim [0002] This application claims the benefit of, thereby claiming priority from, US Patent Application No. 14 / 500,019, filed September 29, 2014, which is hereby incorporated by reference in its entirety. Background technique [0003] This section provides background information related to the present disclosure that is not necessarily prior art. [0004] Tibial tubercle osteotomy is a surgical procedure performed to treat patellofemoral conditions such as patellar instability, patellar pain and cartilage formation, and osteoarthritis. This osteotomy is often performed when non-surgical measures such as physical therapy have failed. During a tibial tuberosity osteotomy, an incision is made in the front of the patient's leg just below the patella, and the proximal front of the tibia is partially resected to create a tuberosity flap. The nodular flap is then repositioned anteriorly and in the medial-lateral direction and held in place with screws. Typical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/15A61B17/17A61B17/80
CPCA61B17/151A61B17/1764A61B17/8095A61B2017/564A61B2017/568A61F2002/2892A61B17/152
Inventor W·马克森
Owner BIOMET SPORTS MEDICINE LLC
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