CN216417301U - Hallux valgus metatarsus-wedge joint fusion inner side anatomical locking plate - Google Patents
Hallux valgus metatarsus-wedge joint fusion inner side anatomical locking plate Download PDFInfo
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- CN216417301U CN216417301U CN202122238459.3U CN202122238459U CN216417301U CN 216417301 U CN216417301 U CN 216417301U CN 202122238459 U CN202122238459 U CN 202122238459U CN 216417301 U CN216417301 U CN 216417301U
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Abstract
The utility model provides an inboard dissection lockplate is fused to hallux valgus metatarsus wedge joint, include: a fixed plate (1); a bone grafting window (4) is arranged on the fixing plate (1); two Kirschner wire holes, two pressurizing fixing holes and five locking holes are formed in the fixing plate (1); each Kirschner wire hole, each pressurizing fixing hole and each locking hole are internally provided with a screw for connecting bones; through improving the postoperative fixing device and the fixing mode, the postoperative wound of the patient is reduced, the fused medial metatarsophalangeal joint after three-dimensional orthopedic fixation is stably fixed, the influence of the postoperative endophyte on the anterior tibialis tendon insertion point is reduced, the patient can move in the lower-lying field in the early stage, the purpose of rapid rehabilitation is achieved, and the operation cost is reduced.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to hallux valgus metatarsophalangeal joint fuses inboard dissection lockplate.
Background
Hallux valgus is the most common foot deformity of middle-aged and old women, and brings great inconvenience to the middle-aged and old women who wear shoes and daily life. Various treatment methods for hallux valgus include proximal metatarsal bone osteotomy, distal metatarsal bone osteotomy and minimally invasive osteotomy, and the treatment methods have good curative effect on correction of severe hallux valgus deformity.
However, these techniques push the distal metatarsal head of the osteotomy line laterally to correct metatarsal adduction, while neglecting to correct metatarsal rotation deformity and inevitably presenting problems of metatarsal shortening. With the intensive research on the occurrence mechanism and pathological anatomy of hallux valgus deformity, the hallux valgus deformity is found to be complex three-dimensional deformity, the medial metatarsophalangeal joint fusion has the improvement of a bone cutting technology with stronger hallux valgus correction capability, so that the shortening of the first metatarsal is reduced to the greatest extent, the rotation deformity of the first metatarsal is corrected while the adduction of the first metatarsal is corrected, the deformity correction capability is strong, the curative effect is definite, and the method is favored by more and more ankle doctors. However, the operation is complex, the double steel plates are fixed on the double planes, the wound is large, and the economic burden of the patient is heavy.
How to accurately cut bones of the medial metatarsophalangeal joint, three-dimensional correction of hallux valgus deformity, strong internal fixation and early-stage postoperative underground movement of a patient. On the basis of anatomical research, a metatarsophalangeal joint fusion inner side anatomical locking steel plate is designed, three-dimensional correction of deformity is achieved, inner side rigidity fixation is achieved, the influence on the tendon dead center of the tibialis anterior is reduced, and dorsal side hollow compression screws are used for achieving metatarsophalangeal joint fusion biplane fixation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hallux valgus metatarsal wedge joint fuses inboard dissection lockplate for it is two-sided fixed to solve present hallux valgus and correct the operation, and the technical problem of operation with high costs.
The utility model provides an inboard dissection lockplate is fused to hallux valgus metatarsus wedge joint, include: a fixing plate; a bone grafting window is arranged on the fixing plate; two Kirschner wire holes, two pressurizing fixing holes and five locking holes are formed in the fixing plate; and each pressurizing and fixing hole and each locking hole are internally provided with a screw for connecting bones.
Preferably, the fixing plate is wedge-shaped.
Preferably, a metatarsal compression fixing hole, a first kirschner wire hole, a first metatarsal locking hole and a second metatarsal locking hole are sequentially arranged on one side of the bone grafting window; and a second wedge bone locking hole, a first wedge bone locking hole, a wedge bone pressurizing and fixing hole, a second Kirschner wire hole and a third wedge bone locking hole are sequentially arranged on the other side of the bone grafting window.
Preferably, the fixing plate is provided with an arc-shaped groove on the surface contacting with the bone.
Preferably, each kirschner wire hole, each pressurizing hole and each locking screw hole are through holes.
Preferably, each kirschner wire hole, each pressurizing hole and each locking screw hole are counter-sunk holes.
Preferably, both ends of the fixing plate are arc-shaped.
Preferably, the fixing plate is made of titanium alloy materials or stainless steel materials.
Preferably, the fixing plate is gradually thickened from the distal end of the first metatarsal locking hole to the bone facing side.
Preferably, the method further comprises the following steps: a cover plate; the cover plate is detachably arranged in the bone grafting window.
The utility model discloses a theory of operation and beneficial effect as follows: through the fixing device and the fixed mode of postoperative improve, reduced patient's operation wound, reduce the influence to tibialis anterior muscle tendon stop after the operation, can make the patient move about on the ground in early, reach quick recovered purpose and also reduced the cost of operation simultaneously, set up the bone grafting window simultaneously, can conveniently continue to plant the bone after the fixed plate is fixed.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a metatarsophalangeal joint fusion medial anatomic locking plate in hallux valgus according to an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention showing the metatarsophalangeal joint fused to an inner anatomical locking plate;
FIG. 3 is a top view of an embodiment of the present invention showing a metatarsophalangeal joint fusion medial anatomical locking plate in hallux valgus;
FIG. 4 is a schematic structural view of the bone connection of the metatarsophalangeal joint fusion medial anatomic locking plate in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of the cover plate of the metatarsophalangeal joint fusion medial anatomic locking plate in the embodiment of the present invention.
The bone grafting device comprises a fixing plate 1, a cuneiform bone pressurizing and fixing hole 2, a cuneiform bone pressurizing and fixing hole 3, a cuneiform bone locking hole 3, a cuneiform bone implanting window 4, a first metatarsal bone locking hole 5, a second metatarsal bone locking hole 6, a metatarsal bone pressurizing and fixing hole 7, an arc-shaped groove 8, a cover plate 9, a fixing part 10, a metatarsal bone 11, a cuneiform bone 12, a connecting hole 13, a first cuneiform bone locking hole 14, a second cuneiform bone locking hole 15, a first Kirschner wire hole 16 and a second Kirschner wire hole 17.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-5:
the embodiment of the utility model provides an inboard dissection lockplate is fused to hallux valgus metatarsus wedge joint, include: a fixing plate 1; a bone grafting window 4 is arranged on the fixing plate 1; two Kirschner wire holes, two pressurizing fixing holes and five locking screw holes are formed in the fixing plate 1; and screws for connecting bones are arranged in the pressurizing holes and the locking screw holes.
The working principle of the technical scheme is as follows: two Kirschner wire holes, two pressurizing fixing holes and five locking screw holes are formed in the fixing plate 1, and screws are arranged in the holes to be connected with the two pressurizing fixing holes and the five locking screw holes, so that the metatarsus is connected with the cuneiform bone; and a bone grafting window 4 is arranged on the fixing plate 1, and when bone grafting is needed in the joint gap, the bone is grafted through the bone grafting window 4.
The beneficial effects of the above technical scheme are: the fixing device is set as the fixing plate 1, so that the operation strength can be reduced, the trauma and operation cost of a patient are reduced, and the working strength of a doctor is also reduced.
In one embodiment, the fixation plate 1 is wedge-shaped.
The beneficial effects of the above technical scheme are: the wedge-shaped fixing plate 1 is more adapted to the shape of the bone, and the wedge-shaped fixing plate is more favorable for correcting the first metatarsal adduction deformity.
In one embodiment, a metatarsal compression fixing hole 7, a first kirschner wire hole 16, a first metatarsal locking hole 5 and a second metatarsal locking hole 6 are sequentially arranged on one side of the bone grafting window 4; the other side of the bone grafting window 4 is sequentially provided with a second wedge locking hole 15, a first wedge locking hole 14, a wedge pressurizing and fixing hole 2, a second kirschner wire hole 17 and a third wedge locking hole 3.
The working principle of the technical scheme is as follows: a metatarsal pressurizing and fixing hole 7, a first Kirschner wire hole 16, a second metatarsal locking hole 6 and a first metatarsal locking hole 5 are sequentially arranged from the left side of the bone grafting window 4, namely from the left end of the fixing plate 1; a second wedge bone locking hole 15, a second kirschner wire hole 17, a wedge bone pressurizing and fixing hole 2 and a third wedge bone locking hole 3 are sequentially arranged on the right side of the bone grafting window 4; in the process of fixing the metatarsal bones 11 and the cuneiform bones 12, the cuneiform bone pressurizing and fixing hole 2 and the metatarsal bone pressurizing and fixing hole 7 are firstly fixed, then the second metatarsal bone locking hole 6 and the first cuneiform bone locking hole 14 are fixed, then the rest of the second cuneiform bone locking hole 15, the third cuneiform bone locking hole 3, the first metatarsal bone locking hole 5 and the rest of the two Kirschner wire holes are fixed to finish the fixing.
The beneficial effects of the above technical scheme are: the Kirschner wire hole, the pressurizing locking hole and the locking hole on the fixing plate 1 are fixed in the above mode, so that the condition that the metatarsus or the cuneiform bone is displaced in the fixing process can be avoided, the arrangement mode is more reasonable, and the fixing effect is better.
In one embodiment, the bone-contacting surface of the fixation plate 1 is provided with an arcuate slot 8.
The working principle of the technical scheme is as follows: the radian of the arc-shaped groove 8 is matched with the radian of the bone by arranging the arc-shaped groove 8; the fixing plate 1 can be matched with the bone more closely, and the fixing plate is convenient to mount.
The beneficial effects of the above technical scheme are: through set up the radian between the adaptable bone of arc wall 8 and the fixed plate on fixed plate 1, simultaneously, the arc wall 8 of setting also can play certain assistance-localization real-time effect when installation fixed plate 1, enables doctor's operation process more convenient.
In one embodiment, each of the k-wire holes, the pressurizing holes and the locking screw holes is a through hole.
The working principle of the technical scheme is as follows: the through hole is convenient for install the screw, and above-mentioned each ke shi pinhole, each pressure hole, each locking screw hole still can set up to the screw hole, sets up to the screw hole and can fix the screw in the screw hole earlier before the installation, the fixed plate 1 of being convenient for.
The beneficial effects of the above technical scheme are: set up the screw hole can twist the screw hole with the screw before the use in, in the in-process direct mount of installation can, avoided after fixed, the inconvenient problem of installing of screw.
In one embodiment, each of the k-wire holes, each of the compression fixation holes, and each of the locking holes are counter-sunk holes.
The beneficial effects of the above technical scheme are: set up kirschner wire hole, pressurization hole, locking screw hole into the counter bore and can be a smooth face at the last face of installation screw after-fixing plate 1, make the patient have no foreign body sensation in the postoperative, make the patient resume faster in the postoperative simultaneously.
In one embodiment, both ends of the fixing plate 1 are arranged in a circular arc shape
The beneficial effects of the above technical scheme are: be provided with the arc with the both ends of arc and can avoid in the operation process, perhaps fixed plate 1 produces the secondary damage to the patient after the operation, consequently sets up fixed plate 1 into arc.
In one embodiment, the fixing plate 1 is made of a titanium alloy material or a stainless steel material.
The beneficial effects of the above technical scheme are: the fixing plate 1 is made of titanium alloy material, has the characteristics of high strength, good corrosion resistance and light weight, and the chemical property of titanium is relatively stable, so that secondary damage to patients can be avoided.
In one embodiment, the fixation plate 1 gradually thickens from the distal end of the first metatarsal locking hole 5 toward the bone facing side.
The beneficial effects of the above technical scheme are: the thickness from the first metatarsal locking hole 5 to the distal steel plate contact bone surface is gradually increased, which is beneficial to correcting the metatarsal 11 adduction deformity; and the structure fits the bone to a greater extent; the position of the metatarsal 11 after three-dimensional reduction is maintained to be stable, the metatarsal wedge joint is favorable for healing after fusion, the patient can move in the ground in the early postoperative period, the early rehabilitation of the patient is favorable, and the complications such as venous thrombosis and the like caused by long-term bed rest are prevented.
In one embodiment, further comprising: a cover plate 9; the cover plate 9 is detachably arranged in the bone grafting window 4.
The working principle of the technical scheme is as follows: fixing pieces 10 are arranged at two ends of the cover plate 9, holes matched with the fixing pieces 10 are formed in the bone grafting window 4, the fixing pieces 10 are installed in the holes in the bone grafting window 4, and the cover plate 9 is fixed in the bone grafting window 4; after the cover plate 9 is fixed in the bone grafting window 4, the cover plate 9 and the fixing plate 1 form a flat plane together; the cover plate 9 can be made of transparent material, so that the surgical situation can be observed through the cover plate 9; the fixing piece 10 is a spring piece which can realize the contraction function, the structure of the fixing piece is the same as that of the fixing piece 10 on the rear cover of the remote controller, and the cover plate 9 can be made of transparent and light-transmitting materials.
The beneficial effect of above-mentioned scheme does: the cover plate 9 is arranged on the bone grafting window 4, so that the bone grafting window 4 is of a cavity structure when in use, the lower plate surface is of a flat plate surface structure when the bone grafting window 4 is not in use, the flat plate surface is beneficial to recovery of a patient, and the cover plate 9 can be detached from the bone grafting window 4 during bone grafting to directly implant bones; the cover plate 9 is made of transparent material, so that if bone grafting is not needed in the treatment process, the treatment condition of the operation can be observed through the cover plate 9.
Preferably: fixing pieces 10 are respectively arranged at two ends of the cover plate 9, connecting holes 13 are respectively arranged on two side walls of the bone grafting window 4, and the fixing pieces 10 are arranged in the connecting holes 13 to fix the cover plate (9) on the bone grafting window 4.
Preferably: the above-described fixing member 10 may be configured to include: the device comprises a baffle, a first cover plate, a second cover plate, a connecting shaft and a spring; the first cover plate and the second cover plate are arranged on the baffle plate, and through holes are formed in two opposite side walls of the first cover plate and the second cover plate; two ends of the connecting shaft are respectively connected with the through holes on the first cover plate and the second cover plate; and limit first apron, second apron on the connecting axle, the spring setting is on the connecting axle, and the spring is used for making first apron, second apron reset.
The installation mode is as follows: the patient lies on the back on the hand table with the tiptoes pointing upwards. The zonules of the metatarsus seed, which are outside the first metatarsal head, are first released percutaneously, and the big toe can be turned inside in passively. Making a 4cm long longitudinal incision on the medial midline of the metatarsophalangeal wedge joint, sequentially cutting the tissues of each layer to expose the medial cuneiform bone, the metatarsophalangeal wedge joint and the proximal end of the metatarsal bone, cutting the metatarsophalangeal wedge joint capsule, and sawing and flattening bony prominences of the joint surface to ensure that the joint surface is flat and tightly abutted. The expansion pad is arranged on the outer side of the metatarsal base, the metatarsal rod and the second metatarsal rod are clamped by the special reduction forceps, the first metatarsal is pushed outwards, meanwhile, the first metatarsal is rotated to correct the pronation deformity, the metatarsal is satisfactorily reduced under the C-arm fluoroscopy, and the reduction forceps are fixed. The three-dimensional osteotomy guide plate is arranged on the inner side of the metatarsal wedge joint, the kirschner wire fixes the osteotomy guide plate, and the miniature oscillating saw cuts bones in three dimensions through the osteotomy guide plate. Taking out the osteotomy piece, and drilling a plurality of bone holes on the osteotomy surface by the thin drill. And (5) resetting the metatarsal wedge joint, and fixing the metatarsal wedge joint through a kirschner wire obliquely penetrating through the lateral aspect of the metatarsal bone base. The fixing plate 1 with a proper length is selected and is arranged on the inner side of the metatarsophalangeal wedge joint along the upper edge of the tibialis anterior tendon, and after the position is adjusted, the metatarsal compression fixing hole 7 is fixed firstly, and then the second metatarsal locking hole 6 is fixed. The percutaneous temporarily fixed kirschner wire is taken out to replace the hollow compression screw with the corresponding length, and if bone grafting is needed in the joint gap, the bone is grafted through the bone grafting window 4. After completion, the steel plate position and screw fixation were checked. Repeatedly washing the incision with normal saline, suturing skin layer by layer, and dressing with pressure at middle position of thumb.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A metatarsal wedge joint fusion medial anatomic locking plate for hallux valgus, comprising: a fixed plate (1);
a bone grafting window (4) is arranged on the fixing plate (1); two Kirschner wire holes, two pressurizing fixing holes and five locking holes are formed in the fixing plate (1); each pressurizing fixing hole and each locking hole are internally provided with a screw for connecting a bone;
the fixing plate (1) is gradually thickened from the far end of the first metatarsal locking hole (5) to the side of the bone-facing surface;
further comprising: a cover plate (9); the cover plate (9) is detachably arranged in the bone grafting window (4).
2. A hallux valgus metatarsal wedge joint fusion medial anatomic locking plate according to claim 1, characterized in that the shape of the fixation plate (1) is wedge-shaped.
3. A hallux valgus metatarsal wedge joint fusion medial anatomic locking plate according to claim 1, characterized in that one side of the bone grafting window (4) is provided with a metatarsal pressurization fixation hole (7), a first kirschner wire hole (16), a first metatarsal locking hole (5), a second metatarsal locking hole (6) in sequence; the other side of the bone grafting window (4) is sequentially provided with a second wedge bone locking hole (15), a first wedge bone locking hole (14), a wedge bone pressurizing and fixing hole (2), a second Kirschner wire hole (17) and a third wedge bone locking hole (3).
4. A metatarsal wedge joint fusion medial anatomic locking plate according to claim 1, characterised in that the face of the plate (1) in contact with the bone is provided with an arc-shaped slot (8).
5. A hallux valgus metatarsal wedge joint fusion medial anatomic locking plate according to claim 1, characterized in that each k-wire hole, each compression fixation hole, each locking hole are through holes.
6. A hallux valgus metatarsal wedge joint fusion medial anatomic locking plate according to claim 1, characterized in that each of the k-wire holes, each of the compression fixation holes and each of the locking holes are counter-sunk holes.
7. A hallux valgus metatarsophalangeal joint fusion medial anatomic locking plate according to claim 1, characterized in that both ends of the fixation plate (1) are provided with a circular arc.
8. The metatarsal wedge joint fusion medial anatomic locking plate of hallux valgus according to claim 1, characterized in that the material of said fixation plate (1) is titanium alloy material or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122238459.3U CN216417301U (en) | 2021-09-15 | 2021-09-15 | Hallux valgus metatarsus-wedge joint fusion inner side anatomical locking plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122238459.3U CN216417301U (en) | 2021-09-15 | 2021-09-15 | Hallux valgus metatarsus-wedge joint fusion inner side anatomical locking plate |
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| Publication Number | Publication Date |
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| CN216417301U true CN216417301U (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122238459.3U Active CN216417301U (en) | 2021-09-15 | 2021-09-15 | Hallux valgus metatarsus-wedge joint fusion inner side anatomical locking plate |
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| CN (1) | CN216417301U (en) |
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2021
- 2021-09-15 CN CN202122238459.3U patent/CN216417301U/en active Active
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