CN104783933A - Tibial plateau assembly - Google Patents
Tibial plateau assembly Download PDFInfo
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- CN104783933A CN104783933A CN201510233275.4A CN201510233275A CN104783933A CN 104783933 A CN104783933 A CN 104783933A CN 201510233275 A CN201510233275 A CN 201510233275A CN 104783933 A CN104783933 A CN 104783933A
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- filling part
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Abstract
The invention provides a tibial plateau assembly which comprises a plateau body (10) and a supporting portion (30) connected below the plateau body (10). The plateau body (10) is provided with a first mounting through hole (11) allowing the supporting portion (30) to penetrate through. The tibial plateau assembly further comprises a repair portion (20) connected below the plateau body (10). The repair portion (20) is provided with a second mounting through hole (21). The supporting portion (30) is arranged in the second mounting through hole (21) in a penetrating mode. The upper portion of the supporting portion (30) is provided with a tool matching portion (40). The supporting portion (30) is provided with a connection segment (31) connected with the second mounting through hole (21). The tool matching portion (40) is located above the connection segment (31). By means of the technical scheme, the problems that in the prior art, a thread segment on an intramedullary rod of a tibial plateau is damaged easily and cannot be taken out conveniently are solved effectively.
Description
Technical field
The present invention relates to technical field of medical instruments, in particular to a kind of tibial plateau assembly.
Background technology
Knee joint is one of important joint of human body lower limbs, and meanwhile, gonarthrosis is also common complaint among the elderly, frequently-occurring disease, and one of its concrete manifestation is that the wearing and tearing of articular cartilage or regression can cause arthralgia.
In the process for the treatment of gonarthrosis, the surface replacement art that the most frequently used is exactly in knee replacements.Particularly, the cartilage that kneed femur and tibia wear and tear and subchondral bone are reamed skim, form osteotomy surface, then the mode of the metal implanting prosthetic of vitallium by directly fixing mode or cement reaction is fixed on this osteotomy surface, thus substitutes the joint sclerotin of wearing and tearing.In above-mentioned implanting prosthetic, parts for alternative femur side seam matter are called condyle of femur, parts for alternative tibial side sclerotin are called tibial plateau, serve as a contrast with polyethylene pads between condyle of femur and tibial plateau, thus play the effect reducing friction, recover knee joint function.
At present, in existing tibial plateau parts, be directly connected by screw thread between main platform body with bar in the marrow arranged thereunder.When implanting prosthetic unsuccessfully needs to overhaul, first implanting prosthetic to be taken out.But under the effect of external force, the connection in main platform body and marrow between bar was easily lost efficacy, in main platform body and marrow, bar will depart from mutually, and now, the thread segment in marrow on bar can damage.Once there is the phenomenon that above-mentioned thread segment damages, conventional instrument of overhauling cannot to be directly connected in marrow on bar and to be taken out.In these cases, other specific purpose tools can only be used to be taken out by bar in marrow, operation is comparatively complicated, wastes time and energy.
Summary of the invention
Main purpose of the present invention is to provide a kind of tibial plateau assembly, easily damages with the thread segment on bar in the marrow solving tibial plateau in prior art, the problem that inconvenience is taken out.
To achieve these goals, the invention provides a kind of tibial plateau assembly, comprise main platform body and be connected to the support portion below main platform body, main platform body has the first installation through hole for wearing support portion, tibial plateau assembly also comprises the reparation portion be connected to below main platform body, reparation portion has the second installation through hole, support portion is located in the second installation through hole, and the top of support portion is provided with instrument auxiliary section, support portion has the linkage section installed through hole with second and be connected, and instrument matching part is in the top of linkage section.
Further, reparation portion comprises filling part and is positioned at connecting portion below filling part, and second installs through hole is arranged on connecting portion, has accommodation gap between instrument auxiliary section and the inner circumferential wall of filling part and/or between the first hole wall installing through hole.
Further, filling part has the implantation skeleton container cavity installed through hole with second and be communicated with.
Further, the circumferential side wall of filling part has reparation through hole.
Further, filling part position is selectively connected to the below of main platform body.
Further, the circumference that main platform body installs through hole along first is provided with multiple locating hole, filling part has the locating convex block coordinated with locating hole.
Further, locating convex block is two, and two locating convex blocks are arranged relative to the axisymmetrical of filling part.
Further, the cross section of filling part is oval.
Further, two locating convex blocks are positioned at the two ends of the major axis of the oval cross section of filling part.
Further, the second installation through hole is conical bore, and the cross-sectional area of conical bore from top to bottom reduces gradually, and linkage section has the taper seat coordinated with conical bore.
Further, instrument auxiliary section comprises external screw thread.
Apply technical scheme of the present invention, set up reparation portion in the below of main platform body, and main platform body has the first installation through hole, reparation portion has the second installation through hole.Support portion is located in above-mentioned first and installs in through hole and the second installation through hole.Meanwhile, support portion has and installs the linkage section that through hole is connected and the instrument auxiliary section be positioned at above linkage section with second.The linkage section and second of support portion is installed through hole and is coordinated support portion and reparation portion are linked together, and then support portion is linked together by reparation portion and main platform body.Because instrument auxiliary section does not connect with any parts, do not affect by external force, and then be not easy to damage.When implanting prosthetic unsuccessfully needs to overhaul, instrument of overhauling coordinates fixing with instrument auxiliary section, by instrument, support portion is taken out again, or support portion and connected reparation portion are taken out in the lump or support portion, reparation portion and main platform body taken out in the lump.Above-mentioned tibial plateau assembly can prevent the instrument auxiliary section on tibial plateau support portion from damaging effectively, makes the taking-up of support portion more convenient and swift, and then is convenient to overhauling of implanting prosthetic, makes to overhaul operation more simply, improves and overhauls efficiency.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic front view of the embodiment according to tibial plateau assembly of the present invention;
Fig. 2 shows the structural representation of the tibial plateau assembly of Fig. 1;
Fig. 3 shows the structural representation of another angle of the tibial plateau assembly of Fig. 1;
The structural representation that the tibial plateau assembly that Fig. 4 shows Fig. 1 coordinates with skeleton;
Fig. 5 shows the structural representation of the main platform body of the tibial plateau assembly of Fig. 1;
Fig. 6 shows the structural representation of another angle of the main platform body of Fig. 5;
Fig. 7 shows the structural representation in the reparation portion of the tibial plateau assembly of Fig. 1;
Fig. 8 shows the schematic front view in the reparation portion of Fig. 7;
Fig. 9 shows the structural representation of the support portion of the tibial plateau assembly of Fig. 1; And
Figure 10 shows the schematic front view of the support portion of Fig. 9.
Wherein, above-mentioned accompanying drawing comprises the following drawings labelling:
10, main platform body; 11, first through hole is installed; 12, locating hole; 13, bone cement groove; 20, reparation portion; 21, second through hole is installed; 22, filling part; 221, skeleton container cavity is implanted; 222, through hole is repaired; 223, locating convex block; 23, connecting portion; 30, support portion; 31, linkage section; 32, free end; 40, instrument auxiliary section.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figures 1 to 4, the support portion 30 that the tibial plateau assembly in the present embodiment comprises main platform body 10 and is connected to below main platform body 10.Main platform body 10 has the first installation through hole 11 for wearing support portion 30.Tibial plateau assembly also comprises the reparation portion 20 be connected to below main platform body 10.Reparation portion 20 has the second installation through hole 21.Support portion 30 is located in the second installation through hole 21, and the top of support portion 30 is provided with instrument auxiliary section 40.Support portion 30 has the linkage section 31 installed through hole 21 with second and be connected, and instrument auxiliary section 40 is positioned at the top of linkage section 31.
The tibial plateau assembly of application the present embodiment, set up reparation portion 20 in the below of main platform body 10, and main platform body 10 has the first installation through hole 11, reparation portion 20 has the second installation through hole 21.Reparation portion 20 is located in above-mentioned first and installs in through hole 11 and the second installation through hole 21.Meanwhile, support portion 30 has and installs the linkage section 31 that through hole 21 is connected and the instrument auxiliary section 40 be positioned at above linkage section 31 with second.The linkage section 31 and second of support portion 30 is installed through hole 21 and is coordinated support portion 30 and reparation portion 20 are linked together, and then support portion 30 is linked together with main platform body 10 by reparation portion 20.Can assemble tibial plateau assembly before corrective surgery or in operation.First reparation portion 20 is placed in the below of main platform body 10, then support portion 30 is located in the first installation through hole 11 and the second installation through hole 21.Because instrument auxiliary section does not connect with any parts, do not affect by external force, and then be not easy to damage.When implanting prosthetic unsuccessfully needs to overhaul, instrument of overhauling coordinates fixing with instrument auxiliary section 40, by overhauling instrument, support portion 30 is taken out again, or support portion 30 and connected reparation portion 20 are taken out in the lump or support portion 30, reparation portion 20 and main platform body 10 taken out in the lump.Above-mentioned tibial plateau assembly can prevent the instrument auxiliary section 40 on tibial plateau support portion 30 from damaging effectively, makes the taking-up of support portion 30 more convenient and swift, and then is convenient to overhauling of implanting prosthetic, makes to overhaul operation more simply, improves and overhauls efficiency.
At present, for knee joint Cranial defect, usually need to carry out artificial full knee joint transposing.In above-mentioned artificial full knee joint transposing process, particularly in overhaul technology, how with bone loss to a certain degree.Knee joint Cranial defect is roughly divided into pardon or non-packet capacitive Cranial defect.Wherein, the surrounding of pardon Cranial defect still has complete cortical bone to hold, and fills when overhauling by particulate cancellous bone bone grafting or bone cement screw.But the cortical bone of the surrounding of non-packet capacitive Cranial defect is partly or entirely lost, usually need to be rebuild by assembly type prosthese cushion block, Structural bone graft, metaphysis metal oversleeve or taper patch.In most of the cases, Cranial defect is less, and residue bone amount is enough to support replacement prosthesis.But some even more serious specific type Cranial defect, just must use jointing repair prosthesis to obtain structural stability.Processing this kind of Cranial defect, is one of challenge maximum in full knee joint overhaul technology.Different patient's Cranial defect states is often different, and jointing repair prosthesis is usually standardization, normalized product.Therefore, when Cranial defect state cannot be mated with jointing repair prosthesis, can only be adapted to the form of jointing repair prosthesis filling block by skiving sclerotin, namely " trim the feet to fit the shoes ", complicated operation, quality is overhauled in very difficult guarantee.In the prior art, occur Custom Prosthesis articular prosthesis, but the fabrication cycle of Custom Prosthesis prosthese is long, expensive, be difficult to be promoted.
As shown in Fig. 1, Fig. 4, Fig. 8 and Fig. 9, in the tibial plateau assembly of the present embodiment, the connecting portion 23 that reparation portion 20 comprises filling part 22 and is positioned at below filling part 22, second installs through hole 21 is arranged on connecting portion 23, has accommodation gap between the inner circumferential wall of instrument auxiliary section 40 and filling part 22 and/or between the first hole wall installing through hole 11.Above-mentioned second installs through hole 21 is connected with the linkage section 31 on support portion 30, support portion 30 and connecting portion 23 is linked together, thus realizes fixing between support portion 30 and reparation portion 20, prevent loose or dislocation.When implanting prosthetic unsuccessfully needs to overhaul, the instrument of overhauling can extend into coordinate in above-mentioned accommodation gap and with instrument auxiliary section 40 fixing, by overhauling instrument, support portion 30 is taken out again, or support portion 30 and connected reparation portion 20 are taken out in the lump or support portion 30, reparation portion 20 and main platform body 10 taken out in the lump, makes more convenient to operate.In addition, for the situation of pardon Cranial defect, the filling part 22 in above-mentioned reparation portion 20 can realize the filling to defect sclerotin.
As shown in Fig. 1, Fig. 4, Fig. 7 and Fig. 8, in the tibial plateau assembly of the present embodiment, filling part 22 has the implantation skeleton container cavity 221 installed through hole 21 with second and be communicated with.The circumferential side wall of filling part 22 has and repairs through hole 222.When overhauling pardon Cranial defect, fill by filling part 22 pairs of defect sclerotin, and in above-mentioned implantation skeleton container cavity 221, select whether bone grafting.The skeleton implanted can be autologous bone or homogeneous allogenic bone.When selecting to implant skeleton in implantation skeleton container cavity 221, the reparation through hole 222 by filling part 22 is connected with osseous tissue complete around defect sclerotin by implanted skeleton, thus realizes the effect of bone fusion.In the present embodiment, the diameter repairing through hole 222 is 2 ~ 8mm, and is uniformly distributed.Certainly, diameter and the distributing position of above-mentioned reparation through hole 222 are not limited thereto, and in other embodiments unshowned in the drawings, diameter and the distributing position of repairing through hole can adjust according to specific needs.
As shown in Figures 1 to 4, in the tibial plateau assembly of the present embodiment, filling part 22 position is selectively connected to the below of main platform body 10.In the present embodiment, can adjust according to the position of position to filling part 22 of different defect sclerotin, thus make filling part 22 more can adapt to the form of defect sclerotin.
As shown in Fig. 5 to Fig. 8, in the tibial plateau assembly of the present embodiment, the circumference that main platform body 10 installs through hole 11 along first is provided with multiple locating hole 12, filling part 22 has the locating convex block 223 coordinated with locating hole 12.Said structure can realize filling part 22 and rotate around the central shaft that first installs through hole 11.Particularly, locating convex block 223 on filling part 22 can insert in the multiple locating holes 12 in main platform body 10, by changing the cooperation position of locating convex block 223 and each locating hole 12, what can regulate filling part 22 and main platform body 10 is oppositely arranged angle in horizontal plane, thus according to the position of different defect sclerotin angle adjustment can be set to filling part 22, add the motility that filling part 22 is arranged, and then achieve the form adapting to defect sclerotin better.
In the present embodiment, by the filling part 22 that setting position is adjustable, and filling part 22 has to be implanted skeleton container cavity 221 and repairs through hole 222, can realize the form farthest adapting to defect sclerotin, and osseous tissue complete around implanted skeleton and defect sclerotin can be made to merge well, the situation avoiding " trimming the feet to fit the shoes " occurs, ensure that skeleton animation quality, and simple to operate, with low cost, can extensively be promoted.
Simultaneously, in the present embodiment, first installs the middle part that through hole 11 is positioned at main platform body 10, support portion 30 from top to bottom penetrates installs through hole 11 first, after tibial plateau assembling components completes, first installs through hole 11 can leave certain space, can by this first installation through hole 11 a large amount of bone grafting in filling part 22.
As shown in Figure 7 and Figure 8, in the tibial plateau assembly of the present embodiment, locating convex block 223 is two, and two locating convex blocks 223 are arranged relative to the axisymmetrical of filling part 22.Said structure makes filling part 22 be evenly distributed with the junction point of main platform body 10, stressed also more even, thus makes the fixed effect between filling part 22 and main platform body 10 better.Certainly, quantity and the setting position of locating convex block 223 are not limited thereto, and in other embodiments unshowned in the drawings, the quantity of locating convex block 223 and setting position can adjust according to specific needs.
As shown in Figure 7, in the tibial plateau assembly of the present embodiment, the cross section of filling part 22 is oval.Two locating convex blocks 223 are positioned at the two ends of the major axis of the oval cross section of filling part 22.After skeleton animation art completes, because filling part 22 can tightly surround by the osseous tissue around defect sclerotin, the cross section of above-mentioned filling part 22 is set to ellipse, the fixing of immediate postoperative can be realized, have again simultaneously and excellent anti-ly revolve function, be conducive to tibial plateau assembly in skeleton in stablize for a long time, effectively evaded the risk of prosthetic loosening.
In the prior art, most knee joint implanting prosthetic adopts between cement reaction mode and skeleton and is fixed.Such as, but there are some defects in bone cement itself, can produce some complication, bone cement chip can cause prosthetic loosening.In actual therapeutic, for young, the good patient of sclerotin, also can adopt biological fixation mode, but biological fixation mode is for inapplicable older, that sclerotin is bad patient.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 6, in the tibial plateau assembly of the present embodiment, the bottom of main platform body 10 has bone cement groove 13.The upper surface of main platform body 10 matches with tibial insert, and the bone cement groove 13 of bottom is for hold bone cement, and main platform body 10 passes through this cement reaction with the osteotomy surface at tibial prosthesis place.
As shown in Fig. 1, Fig. 4 and Figure 10, in the tibial plateau assembly of the present embodiment, the circumferential exterior surface of support portion 30 has biological coating.In the outer surface aufwuch coating of support portion 30, this biological coating can be hydroxyl apatite bioceramic coating or pure titanium valve coating.In the present embodiment, support portion 30 is inserted in human tibia pulp cavity, and support portion 30 and the bone marrow in pulp cavity can merge by above-mentioned biological coating arrange better, realize biological fixation.It should be noted that, biological coating is not limited to hydroxyl apatite bioceramic coating and pure titanium valve coating, and in other embodiments unshowned in the drawings, biological coating also can be other forms of biological coating.
Said structure can realize the compound fixed form of cement reaction and biological fixation, and the advantage of comprehensive two kinds of fixed forms, all there is good therapeutic effect to the patient of all ages and classes, different sclerotin.
As shown in Fig. 8 to Figure 10, in the tibial plateau assembly of the present embodiment, the second installation through hole 21 is conical bore, and the cross-sectional area of conical bore from top to bottom reduces gradually, and linkage section 31 has the taper seat coordinated with conical bore.When assembling tibial plateau assembly, support portion 30 is from top to bottom located in above-mentioned conical bore, and the taper seat of the linkage section 31 of support portion 30 is matched with above-mentioned conical bore, linkage section 31 and second is installed between through hole 21 and is fixedly connected with.Wherein, the cross-sectional area of conical bore from top to bottom reduces to prevent support portion 30 from deviating from from the lower end of conical bore gradually.The diameter of above-mentioned conical bore is 8 ~ 15mm, and tapering is 3 ° ~ 8 °.In other embodiments unshowned in the drawings, diameter and the tapering of conical bore are not limited thereto, and also can be set to other numerical value according to specific needs.
In the present embodiment, second install through hole 21 with between linkage section 31 for interference is connected, certainly, second connected mode of installing between through hole 21 and linkage section 31 is not limited thereto, in other embodiments unshowned in the drawings, second installs between through hole 21 and linkage section 31 can be other forms of connected mode, such as, be threaded.
As shown in Figure 1 to Figure 4, shown in Fig. 9 and Figure 10, in the tibial plateau assembly of the present embodiment, support portion 30 also has free end 32, and free end 32 conically.Free end 32 is set to taper shape, can prevent the stress of free end 32 from concentrating, thus reduces the pain of patient.
As shown in Figure 10, in the tibial plateau assembly of the present embodiment, support portion 30 is support bar.In implantation tibial plateau component process, support bar is inserted in human tibia pulp cavity, thus can by the Stress Transfer of main platform body 10 to tibia bottom, and then the tibial plateau assembly guaranteed is effectively fixing.
It should be noted that, the length of support bar can adjust according to specific needs.In the present embodiment, support bar has 5 kinds of length, is respectively length L=130mm, 135mm, 140mm, 145mm, 150mm.By the support bar of different length and the connection of main platform body 10, the change of tibial plateau component integration height can be realized, thus adapt to the Skeletal size of different patient.Certainly, in other embodiments unshowned in the drawings, the support bar of other length also can be selected according to specific needs.
As shown in Fig. 1, Fig. 4, Fig. 9 and Figure 10, in the tibial plateau assembly of the present embodiment, instrument auxiliary section 40 comprises external screw thread.External screw thread on instrument auxiliary section 40 can match with the female thread on instrument, more convenient when making to utilize instrument to coordinate fixing with instrument auxiliary section 40.In addition, when implanting tibial plateau assembly, instrument auxiliary section 40 also can coordinate with instrument, utilizes instrument that tibial plateau assembly is implanted to tibial prosthesis place, more convenient to operate.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
The tibial plateau assembly of the application can realize the filling reparation of pardon Cranial defect, the position in reparation portion is adjustable thus farthest adapt to the form of patient Cranial defect, and osseous tissue complete around implanted skeleton and defect sclerotin can be made to merge well, strengthen the effect that implanting prosthetic is fixing, the situation avoiding " trimming the feet to fit the shoes " occurs, and ensure that skeleton animation quality, and simple to operate, with low cost, can extensively be promoted.In addition, the design of the instrument auxiliary section on support portion makes implantation or takes out prosthese convenient.The tibial plateau assembly of the application have employed cement reaction technology, biological coating technology, bone integration technology and cone fit structure simultaneously, can the initial stage of implanting prosthetic and the later stage stable fixing in there is good effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a tibial plateau assembly, comprise main platform body (10) and be connected to the support portion (30) below described main platform body (10), it is characterized in that, described main platform body (10) has the first installation through hole (11) for wearing described support portion (30), described tibial plateau assembly also comprises the reparation portion (20) being connected to described main platform body (10) below, described reparation portion (20) has the second installation through hole (21), described support portion (30) is located in described second and installs in through hole (21), and the top of described support portion (30) is provided with instrument auxiliary section (40), described support portion (30) has the linkage section (31) installed through hole (21) with described second and be connected, described instrument auxiliary section (40) is positioned at the top of described linkage section (31).
2. tibial plateau assembly according to claim 1, it is characterized in that, described reparation portion (20) comprises filling part (22) and is positioned at the connecting portion (23) of described filling part (22) below, described second installs through hole (21) is arranged on described connecting portion (23), between the inner circumferential wall of described instrument auxiliary section (40) and described filling part (22) and/or and the described first hole wall installing through hole (11) between there is accommodation gap.
3. tibial plateau assembly according to claim 2, is characterized in that, described filling part (22) has the implantation skeleton container cavity (221) installed through hole (21) with described second and be communicated with.
4. tibial plateau assembly according to claim 3, is characterized in that, the circumferential side wall of described filling part (22) has reparation through hole (222).
5. tibial plateau assembly according to claim 2, is characterized in that, described filling part (22) position is selectively connected to the below of described main platform body (10).
6. tibial plateau assembly according to claim 5, it is characterized in that, the circumference that described main platform body (10) installs through hole (11) along described first is provided with multiple locating hole (12), described filling part (22) has the locating convex block (223) coordinated with described locating hole (12).
7. tibial plateau assembly according to claim 6, is characterized in that, described locating convex block (223) is two, and two described locating convex blocks (223) are arranged relative to the axisymmetrical of described filling part (22).
8. tibial plateau assembly according to claim 7, is characterized in that, the cross section of described filling part (22) is oval.
9. tibial plateau assembly according to claim 8, is characterized in that, two described locating convex blocks (223) are positioned at the two ends of the major axis of the oval cross section of described filling part (22).
10. tibial plateau assembly according to claim 1, it is characterized in that, described second installation through hole (21) is conical bore, and the cross-sectional area of described conical bore from top to bottom reduces gradually, and described linkage section (31) has the taper seat coordinated with described conical bore.
11. tibial plateau assemblies according to claim 1 and 2, is characterized in that, described instrument auxiliary section (40) comprises external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233275.4A CN104783933B (en) | 2015-05-08 | 2015-05-08 | Tibial plateau assembly |
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| CN201510233275.4A CN104783933B (en) | 2015-05-08 | 2015-05-08 | Tibial plateau assembly |
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| CN104783933A true CN104783933A (en) | 2015-07-22 |
| CN104783933B CN104783933B (en) | 2017-01-25 |
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|---|---|---|---|---|
| US4257129A (en) * | 1979-05-21 | 1981-03-24 | Volz Robert G | Prosthetic knee joint tibial implant |
| EP1186277A2 (en) * | 1996-05-28 | 2002-03-13 | Howmedica International Inc. | Tibial element for a replacement knee prosthesis |
| US6214052B1 (en) * | 1999-01-19 | 2001-04-10 | Sulzer Orthopedics Inc. | Tibial component with a reversible, adjustable stem |
| US8092546B2 (en) * | 2002-02-20 | 2012-01-10 | Zimmer, Inc. | Knee arthroplasty prosthesis |
| US20040225368A1 (en) * | 2003-04-24 | 2004-11-11 | Sylvie Plumet | Modular stud for posterior stabilised knee prosthesis |
| EP1574184A1 (en) * | 2004-03-09 | 2005-09-14 | Zimmer Technology, Inc. | Tibial implant with a through post |
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| CN104783933B (en) | 2017-01-25 |
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