阅读说明：本技术 矫形截骨系统 (Orthopedic osteotomy system ) 是由 丁涛 于 2021-07-24 设计创作，主要内容包括：本发明提供一种矫形截骨系统,其用于截骨的矫形,所述截骨包括开口朝向一侧的截骨切口。所述矫形截骨系统包括置于截骨切口的填充块以及固定在截骨上以将填充块固定到截骨切口的截骨板,所述矫形截骨系统还包括将填充块和截骨板固定到截骨的固定螺钉,所述截骨板固定在截骨的侧边。本发明提供的矫形截骨系统可以对截骨提供有效的支撑。(The present invention provides an orthopedic osteotomy system for orthopedic use in an osteotomy, the osteotomy including an osteotomy cut open to one side. The orthopedic osteotomy system includes a filler block disposed at an osteotomy cut and an osteotomy plate secured to the osteotomy to secure the filler block to the osteotomy cut, the orthopedic osteotomy system further including a set screw securing the filler block and the osteotomy plate to the osteotomy, the osteotomy plate secured to a lateral side of the osteotomy. The orthopedic osteotomy system provided by the invention can provide effective support for osteotomy.)

1. An orthopedic osteotomy system for orthopedic fixation of an osteotomy, the osteotomy including an osteotomy cut open to one side, said orthopedic osteotomy system comprising a filler block disposed at the osteotomy cut and an osteotomy plate secured to the osteotomy to secure the filler block to the osteotomy cut, said orthopedic osteotomy system further comprising a set screw for securing the filler block and the osteotomy plate to the osteotomy, said osteotomy plate being secured to a side of the osteotomy.

2. The orthopedic osteotomy system of claim 1, wherein said spacer is a porous structure having a pore size between 100um and 700 um.

3. The orthopedic osteotomy system of claim 2, wherein said spacer has an average pore size between 300um and 400 um.

4. The orthopedic osteotomy system of claim 2, wherein said spacer has a porosity of 60% to 80% and a rod diameter of 200um to 800 um.

5. The orthopedic osteotomy system of claim 1, wherein said spacer is an anatomic spacer.

6. The orthopedic osteotomy system of claim 1, wherein the lateral surface of the spacer is approximately triangular, and the set screw extends into the spacer from the posterior surface thereof and secures the spacer to the osteotomy.

7. The orthopedic osteotomy system of claim 1, wherein the lateral shape of the spacer comprises an approximately triangular shape at the anterior end and an approximately quadrilateral shape at the posterior end, the set screw extending into the spacer from the posterior face thereof and securing the spacer to the osteotomy.

8. The orthopedic osteotomy system of claim 1, wherein said osteotomy is a tibia or a femur.

9. The orthopedic osteotomy system of claim 1, wherein a surface of said filler block is doped with hydroxyapatite.

10. The orthopedic osteotomy system of claim 1, wherein the spacer includes a set screw mounting portion and a body coupled to the set screw mounting portion, the set screw mounting portion including a mounting hole and a sidewall disposed about the mounting hole, the sidewall being a solid body and the body being a porous structure.

Technical Field

The present invention relates to orthopedic osteotomy systems, and more particularly to an orthopedic osteotomy system with a filler block.

Background

Current knee joint treatment options are total knee replacement, unicondylar replacement, and knee protection treatment (orthopedic osteotomy). With the continuous popularization of orthopedic osteotomy, more doctors and more patients are preferably suitable for knee protection treatment when treating the patients. Orthopedic osteotomies have a high surgical requirement for surgeons and require precise control of the force line to ensure that the clinical outcome is comparable to the survival time of a total knee replacement. However, the satisfaction of the patients after the current orthopedic osteotomy is not high, and particularly after 5 to 7 years, many patients need to undergo secondary surgery, and the satisfaction is remarkably reduced. The reasons for this are caused by surgical techniques such as over-or under-correction, and improper selection of indications. There may also be performance issues with the orthopedic osteotomy system itself. After the current orthopedic osteotomy is cut, if the orthopedic angle is large, autogenous bones or allogeneic bones can be filled, the bone regeneration speed at the cut is slow, and when the cut is small, no medium is added. These can result in shifting of the patient's line of force and slow healing of the wound. Currently, the orthopedic osteotomies are generally applied to a distal medial femoral osteotomy, a lateral femoral osteotomy, a medial tibial osteotomy and a lateral tibial osteotomy, and currently, the most common is a medial High Tibial Osteotomy (HTO), such as the conventional orthopedic osteotomy system shown in fig. 1.

Fig. 2 shows a schematic illustration of the adjustment of the force lines for an orthopedic, such as the orthopedic osteotomy system of fig. 3 with a cut-out region. If the orthopedic angle of the orthopedic osteotomy is small, the cut area is relatively small, no medium is added into the cut area, and the growth of the bone in the cut area is slow; when the orthopedic angle is large, some autogenous bone or allogeneic bone may fill in the orthopedic incision area. The early recovery of patient is slow relatively, including the patient under the action of gravity, can arouse the stress deformation of osteotomy plate, and the incision is regional inside not to support simultaneously, can cause the small change of patient's line of force, along with long-term influence, can cause the atress inequality of knee joint, and the line of force takes place the skew, long-term in the past, can cause the knee joint wearing and tearing aggravation, finally leads to the secondary operation to carry out knee joint replacement treatment.

Disclosure of Invention

The present invention provides an orthopedic osteotomy system that provides effective support for an osteotomy.

According to one aspect of the present invention, an orthopedic osteotomy system is provided for orthopedic use with an osteotomy including an osteotomy cut open to one side. The orthopedic osteotomy system includes a filler positioned at an osteotomy cut including a set screw for securing a filler block and an osteotomy plate to an osteotomy, the osteotomy plate being secured to a lateral side of the osteotomy.

Preferably, the filling block is a porous structure, and the pore diameter of the filling block is between 100um and 700 um.

Preferably, the mean pore size of the packing block is between 300um and 400 um.

Preferably, the porosity of the filling block reaches 60 to 80 percent, and the rod diameter is between 200 and 800 um.

Preferably, the filling block is an anatomical filling block.

Preferably, the lateral surface of the filling block is approximately triangular, and the fixing screw extends into the filling block from the rear end surface of the filling block and fixes the filling block to the osteotomy.

Preferably, the lateral shape of the filling block includes an approximately triangular shape at the front end and an approximately quadrangular shape at the rear end, and the fixing screw extends into the filling block from the rear end surface of the filling block and fixes the filling block to the osteotomy.

Preferably, the osteotomy is a tibia or a femur.

Preferably, hydroxyapatite is added to the surface of the filling block.

Preferably, the filling block includes set screw installation department and the main part that links to each other with the set screw installation department, the set screw installation department includes the mounting hole and encircles the lateral wall that the mounting hole set up, the lateral wall is the solid body, the main part is porous structure.

The orthopedic osteotomy system provided by the invention can provide effective support for osteotomy.

Drawings

FIG. 1 is a schematic view of a prior art orthopedic osteotomy system.

Fig. 2 is a force line adjustment diagram for orthopedic surgery in the prior art.

Figure 3 is a prior art orthopedic osteotomy system having a cut out region.

Figure 4 is a schematic view of an orthopedic osteotomy system of the present invention.

Figure 5 is another schematic view of the orthopedic osteotomy system of the present invention.

Fig. 6 is a perspective view of the filling block without the mounting hole in the first embodiment.

Fig. 7 is a schematic view of the first embodiment in which the filling block has a porous structure.

Fig. 8 is an enlarged view within the circle in fig. 7.

Fig. 9 is a schematic view of the second embodiment in which the filling block has a porous structure.

Fig. 10 is an enlarged view of the circle in fig. 9.

Fig. 11 is a perspective view of a spacer with mounting holes.

Fig. 12 is a schematic view of a porous structure of a filling block with mounting holes.

Fig. 13 is a schematic view of another embodiment of a filling block with mounting holes in a porous structure.

Detailed Description

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 4-5, the present invention provides an orthopedic osteotomy system for use in orthopedic osteotomies. The osteotomy may be a tibia or other bone, without limitation. For convenience of explanation, the tibia is hereinafter described as an example. In this embodiment, the tibia 1 comprises an osteotomy cut open to one side for mounting a filling block 3.4. The orthopedic osteotomy system further includes an osteotomy plate 2 secured to the tibia 1 to secure a filler block 3.4 to the osteotomy cut. The orthopedic osteotomy system further comprises a fixation screw 4 for securing the filler block 3.4 and the osteotomy plate 2 to the tibia 1, the osteotomy plate 2 being secured to the lateral side of the tibia 1.

Referring to fig. 6 to 8, there is shown a schematic view of a spacer 3.4 in a first embodiment. The sides of the filling blocks 3.4 are approximately triangular. The filling block 3 is made of titanium alloy or titanium powder by an additive manufacturing process, the aperture of the hole 3.4.1 of the filling block 3.4 is between 100 and 700 mu m, the average aperture is between 300 and 400 mu m, the porosity is between 60 and 80 percent, and the rod diameter is between 200 and 800 mu m, so that the bone growth is facilitated, and the bone integration can be realized. Some active agents with osteoinductive effect, including but not limited to hydroxyapatite, may also be added to the filling block 3. According to the invention, the growth speed of osteocytes is accelerated by adding active substances such as hydroxyapatite with an osteoinduction effect on the surface of the filling block 3.4.

Fig. 9 to 10 show a schematic representation of a filling block 3.4 in a further embodiment. The lateral shape of the filling block 3.4 comprises an approximately triangular shape at the front end and an approximately quadrangular shape at the rear. The filling block 3.4 can be customized to the desired shape according to the anatomy of the human body.

Referring to fig. 11 to 12, a filler block 3.4 with mounting holes 3.4.2 is illustrated. A set screw 4 extends into the block 3.4 from the rear end face of the block 3.4 and fixes the block 3.4 to the osteotomy 1. The filler block 3.4 includes a set screw mounting portion and a body connected to the set screw mounting portion. The set screw mounting portion includes mounting hole 3.4.2 and the lateral wall that encircles the setting of mounting hole 3.4.2, the lateral wall is the solid, the main part is porous structure.

Preferably, the filling block 3.4 is an anatomical filling block.

Preferably, the osteotomy is a tibia or a femur.

In the invention, the filling block 3, the osteotomy plate 2 and the fixing screw 4 form an orthopedic osteotomy system, so that the lower limb force line of a patient can be restored, and the pain and the dysfunction of the patient are solved.

The filling block 3.4 comprises at least 1 screw hole 3.4.2. The fixation of the filling piece 3.4 by means of the screw 4 makes the orthopaedic osteotomy system more stable, while the filling piece 3.4 can be perfectly matched to the patient's incision area.

Referring to fig. 13, the filler block 3.4 of fig. 13 differs from the filler block 3.4 of fig. 12 in the shape of the end face of the mounting hole. In fig. 13, the end face of the filling piece 3.4 is shaped so as to be inclined inwards, the arrangement being such that the end of the fixing screw is placed in the recess, so that exposed outer faces of the osteotomy of the end of the fixing screw 4 can be avoided. Although the end face shape of the filling block 3.4 in fig. 13 is inclined inwardly recessed, it is within the scope of the present patent to provide the end face shape of the filling block in other recessed forms.

The filling block 3.4 of the invention can be directly fixed with the bone by screws, which can improve the stability of the whole osteotomy system.

The invention has the following technical effects:

(1) providing reliable support and accelerating incision healing; (2) the stability of the whole osteotomy system is improved; (3) can effectively reduce the force line deviation of the patient and improve the survival rate of the prosthesis.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.