JP3495161B2 - Femoral component of a knee prosthesis - Google Patents
Femoral component of a knee prosthesisInfo
- Publication number
- JP3495161B2 JP3495161B2 JP31252995A JP31252995A JP3495161B2 JP 3495161 B2 JP3495161 B2 JP 3495161B2 JP 31252995 A JP31252995 A JP 31252995A JP 31252995 A JP31252995 A JP 31252995A JP 3495161 B2 JP3495161 B2 JP 3495161B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- femoral component
- femur
- sliding portion
- bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、変形性関節症など
の疾患により機能が低下もしくは喪失したり、疼痛の増
大した人の骨や、関節の一部をを置換する生体補綴部材
に関し、特に、人工膝関節の大腿骨コンポーネントに関
するものである。
【０００２】
【従来の技術】従来、人工股関節や人工膝関節を構成す
る種々の部材を骨に対して設置する場合、術後初期の固
定性を確保するため、また恒久的な固定性を得るため、
骨と補綴部材の間に比較的生体にとって安全な所謂骨セ
メントを介在させて固定する方法が用いられてきた。
【０００３】このような骨セメントによる結合力を補強
する方法として、補綴部材の表面に凹状あるいは溝状の
セメント溜まりを設け、該セメント溜まりの部分では、
ある一定以上のセメント厚みを確保し、固定を確実なも
のにすることが実施されてきた。
【０００４】図３には、このような従来の生体補綴部材
の例として、人工膝関節を構成する大腿骨コンポーネン
トＦを示す。この大腿骨コンポーネントＦは板状の前壁
１と左右２つの後壁２、２及びこれらを連結し概ね弧状
をなす摺動部３から構成されるもので、上記前壁１と摺
動部３と後壁２の外側表面は、置換する大腿骨の正常状
態における関節摺動面に近似した滑らかな曲面を有し、
また、大腿骨の後方に位置する前後十字靱帯の付着部と
干渉する位置には、上記２つの後壁２、２と摺動部の一
部を中央で分断する顆間スリット４が形成されている。
【０００５】また、上記摺動部３の内側には３種類の異
なる方向をもった平坦面、すなわち、真ん中には水平面
７、その両側にはそれぞ後壁２と前壁１とに連なる一対
の斜面（それぞれ、後斜面８、前斜面９と呼ぶ）が配設
されている。
【０００６】さらに、上記摺動部３には、後斜面８から
前斜面９の途中まで、側面１６に平行して固定強化用の
梁１１、１１が左右対称位置に形成されるとともに、そ
の外側および前側には、堤防状の仕切りによって区画さ
れた３つの溝状のセメント溜まり１２、１２、１２が形
成されており、他方、前記前壁１および後壁２、２の内
側面５、６には、それぞれ独立的に区画された溝状のセ
メント溜まり１２が形成されていた。
【０００７】
【従来技術の課題】ところが、上記従来技術には以下の
ような問題点があった。すなわち、骨との接合表面部に
形成されたセメント溜まりの各成分が堤防状に仕切られ
ていたので仕切りの部分とセメント溜まりの部分で結合
力や応力の伝達の仕方に若干の違いが生じる。この差異
により、仕切り部分で骨セメントと大腿骨コンポーネン
トの剥離が始まり、これが他部位に進行していき結合力
が弱まっていく。
【０００８】このような事態が発生すると、大腿骨コン
ポーネントのマイクロムーブメントや部分的な応力の集
中がおこるなどし、骨吸収や補綴部材の位置ずれなど重
大な事態を招いてしまう恐れがあった。
【０００９】
【発明の目的】このような従来技術の課題に鑑み、本発
明は、骨セメントとの結合力が大きく、安定的で、骨吸
収や補綴部材の位置ずれなどが発生しない安全な人工膝
関節の大腿骨コンポーネントを提供するものである。
【００１０】
【課題を解決するための手段】本発明は前記課題を解決
するために、大腿骨の遠位端面に当接する弧状の摺動部
と、前記大腿骨の前面に当接する板状の前壁と、前記大
腿骨に後面に当接する２個の板状の後壁と、前記大腿骨
の後方に位置する前後十字靱帯用に前記２個の後壁の間
に設けられた顆間スリットとからなるとともに、前記大
腿骨との接合面にセメント溜まりを設けてなる、人工膝
関節の大腿骨コンポーネントにおいて、前記セメント溜
まりを前記後壁の一方から前記摺動部を経て前記前壁に
連続させ、かつ前記セメント溜まりを前記前壁で折り返
して、さらに前記摺動部を経て前記後壁の他方に連続さ
せて、前記セメント溜まりをコ字状に設けた
【００１１】
【発明の実施の形態】以下、本発明の実施形態を図を用
いて説明する。
【００１２】
【実施形態１】図１（ａ），（ｂ），（ｃ）には、本実
施態様に係る生体補綴部材としての、人工膝関節を構成
する大腿骨コンポーネントＦの平面図、正面図、側面図
を示し、この大腿骨コンポーネントＦは板状の前壁１と
左右２つの後壁２、２及びこれらを連結し概ね弧状をな
す摺動部３から構成される。
【００１３】この大腿骨コンポーネントＦの前壁１と摺
動部３と後壁２の外側表面は、置換する大腿骨の正常状
態における関節摺動面に近似した滑らかな曲面を有し、
また、大腿骨の後方に位置する前後十字靱帯の付着部と
干渉する位置には、上記２つの後壁２、２と摺動部３の
一部を中央で分断する顆間スリット４が形成されてい
る。
【００１４】図１（ａ）に示すように大腿骨コンポーネ
ントＦの側面１６は、外顆側と内顆側が前から後ろに向
けて、それぞれ１０°、５°中央寄りに傾いている。
【９９１５】また図１（ｃ）に示すように大腿骨コンポ
ーネントＦの前壁１と後壁２の相対する内側面５、６は
平坦面であり、かつ、それぞれ３°づつ垂直方向に対し
て傾いている。さらに、上記摺動部３の内側には３種類
の異なる方向をもった平坦面が形成され、すなわち、真
ん中には水平面７、その両側にはそれぞれ後壁２と前壁
１とに連なる一対の斜面（それぞれ、後斜面８、前斜面
９と呼ぶ）が配設されている。
【００１６】さらに、上記摺動部３は、前斜面９から後
斜面８の途中まで、側面１６に平行して固定強化用の梁
１１、１１が左右対称位置に形成され、該梁１１、１１
を囲むように深さ１ｍｍ〜３ｍｍのセメント溜まり１２
が溝状で、且つ、平面視コの字状［図１（ｂ）では逆コ
の字に見える］に形成されており、他方、前記前壁１と
後壁２、２のそれぞれには、摺動部３の水平面７、後斜
面８、前斜面９に設けられたセメント溜まり１２に連続
し、これらと一体的にセメント溜まり１２が形成されて
いる。
【００１７】このように構成される上記大腿骨コンポー
ネントＦは、骨との接合表面部に溝状のセメント溜まり
１２が、それぞれ別個に仕切られているのではなく、各
充填した骨セメントが所定の深さで繋がるよう、連続溝
で繋がるセメント溜まりを形成してあり、セメント溜ま
り１２の各成分が個別に仕切られているような場合の如
く、仕切りと骨セメントが充填されている部分での荷重
の違いによる荷重集中の問題等がなく、これにより骨吸
収や、骨セメントの剥離などが回避でき、大きな結合力
で安定的に骨と補綴部材の固定を維持することができ
る。
【００１８】また、上記大腿骨コンポーネントＦでは、
摺動部３のセメント溜まり１２が平面視コの字状であっ
て、セメント溜まり１２がほぼ直角に繋がっているが、
このように４５°以上の大きな角度でセメント溜まり１
２がつながっている場合、固定力が飛躍的に増大する。
【００１９】なお、上記セメント溜まり１２の深さが１
ｍｍより小さい場合、セメント量が少なく、接合強度が
不十分になる可能性がある。
【００２０】他方、セメント溜まりの１２深さが３ｍｍ
より大きい場合、大腿骨コンポーネントＦの体積が小さ
くなり、部材自体の強度が小さくなってしまう恐れがあ
る。
【００２１】
【発明の効果】叙上のように本発明によれば、大腿骨の
遠位端面に当接する弧状の摺動部と、前記大腿骨の前面
に当接する板状の前壁と、前記大腿骨に後面に当接する
２個の板状の後壁と、前記大腿骨の後方に位置する前後
十字靱帯用に前記２個の後壁の間に設けられた顆間スリ
ットとからなるとともに、前記大腿骨との接合面にセメ
ント溜まりを設けてなる、人工膝関節の大腿骨コンポー
ネントにおいて、前記セメント溜まりを前記後壁の一方
から前記摺動部を経て前記前壁に連続させ、かつ前記セ
メント溜まりを前記前壁で折り返して、さらに前記摺動
部を経て前記後壁の他方に連続させて、前記セメント溜
まりをコ字状に設けたことから、大腿骨コンポーネント
と骨セメントとの固定力のバラツキが小さく、したがっ
て、骨との緩み及びそれによる骨吸収を効果的に防止す
ることができるという優れた効果を奏するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bone or a part of a joint of a person whose function has been reduced or lost due to a disease such as osteoarthritis or pain has increased. And more particularly to a femoral component of a knee prosthesis. 2. Description of the Related Art Conventionally, when various members constituting an artificial hip joint or an artificial knee joint are installed on a bone, in order to secure an initial fixation after the operation and obtain a permanent fixation. For,
A method has been used in which a so-called bone cement which is relatively safe for a living body is interposed between a bone and a prosthetic member to fix the bone. [0003] As a method of reinforcing the bonding force by such bone cement, a concave or groove-shaped cement reservoir is provided on the surface of a prosthetic member, and the cement reservoir has
It has been practiced to secure a certain cement thickness or more and to secure the fixation. FIG. 3 shows a femoral component F constituting an artificial knee joint as an example of such a conventional bioprosthetic member. The femoral component F is composed of a plate-shaped front wall 1, two left and right rear walls 2, 2 and a sliding portion 3 connecting these to form a substantially arcuate shape. And the outer surface of the rear wall 2 has a smooth curved surface similar to the joint sliding surface in the normal state of the femur to be replaced,
An intercondylar slit 4 is formed at the position interfering with the attachment of the anterior-posterior cruciate ligament located behind the femur, at the center of the two rear walls 2 and 2 and part of the sliding part. I have. On the inside of the sliding portion 3, there are flat surfaces having three different directions, that is, a horizontal surface 7 in the middle, and a pair of rear surfaces 2 and front walls 1 on both sides thereof. (Referred to as a rear slope 8 and a front slope 9, respectively). Further, on the sliding portion 3, from the rear slope 8 to the middle of the front slope 9, fixing reinforcing beams 11, 11 are formed in parallel with the side face 16 at symmetrical positions, and the outer sides thereof are formed. On the front side, three groove-like cement reservoirs 12, 12, 12 defined by a bank-like partition are formed, while the inner surfaces 5, 6 of the front wall 1 and the rear walls 2, 2 are formed. In each case, a groove-shaped cement pool 12 which was separately partitioned was formed. [0007] However, the above prior art has the following problems. That is, since each component of the cement pool formed on the joint surface with the bone is partitioned in the form of a bank, there is a slight difference in the manner of transmitting the bonding force and stress between the partition portion and the cement pool. Due to this difference, the separation of the bone cement and the femoral component starts at the partition part, and this progresses to another part, and the bonding strength is weakened. When such a situation occurs, micro-movement of the femoral component or partial concentration of stress may occur, and a serious situation such as bone resorption or displacement of the prosthetic member may be caused. SUMMARY OF THE INVENTION In view of the above-mentioned problems in the prior art, the present invention provides a safe artificial joint that has a large bonding force with bone cement, is stable, and does not cause bone resorption or displacement of a prosthetic member. It provides a femoral component of the knee joint. [0010] In order to solve the above-mentioned problems, the present invention provides an arc-shaped sliding portion abutting on a distal end face of a femur, and a plate-shaped sliding portion abutting on a front surface of the femur. An anterior wall, two plate-shaped posterior walls abutting the posterior surface of the femur, and an intercondylar slit provided between the two posterior walls for the anterior-posterior cruciate ligament located behind the femur In the femoral component of an artificial knee joint, wherein a cement pool is provided on a joint surface with the femur, the cement pool is continuously connected to the front wall from one of the rear walls via the sliding portion. And the cement pool is folded back on the front wall, and further connected to the other of the rear wall via the sliding portion, so that the cement pool is provided in a U-shape. An embodiment of the present invention will now be described with reference to the drawings. It described Te. Embodiment 1 FIGS. 1 (a), 1 (b) and 1 (c) are a plan view and a front view of a femoral component F constituting an artificial knee joint as a bioprosthesis member according to this embodiment. FIG. 1 shows a side view of a femoral component. The femoral component F is composed of a plate-shaped front wall 1, two left and right rear walls 2, 2, and a sliding part 3 which connects them and forms an approximately arc shape. The outer surfaces of the front wall 1, the sliding portion 3 and the rear wall 2 of the femoral component F have a smooth curved surface similar to the joint sliding surface in the normal state of the femur to be replaced.
An intercondylar slit 4 is formed at a position interfering with the attachment of the anterior-posterior cruciate ligament located at the back of the femur, at the center of the two rear walls 2 and 2 and a part of the sliding part 3. ing. As shown in FIG. 1 (a), the side surface 16 of the femoral component F has a lateral condyle side and a medial condyle side inclined from the front to the rear by 10 ° and 5 ° toward the center, respectively. Also, as shown in FIG. 1 (c), the opposing inner side surfaces 5, 6 of the front wall 1 and the rear wall 2 of the femoral component F are flat surfaces, and each is 3 ° with respect to the vertical direction. Leaning. Further, flat surfaces having three different directions are formed inside the sliding portion 3, that is, a horizontal surface 7 in the middle, and a pair of rear surfaces 2 and front walls 1 on both sides thereof, respectively. A slope (referred to as a rear slope 8 and a front slope 9, respectively) is provided. Further, in the sliding portion 3, from the front slope 9 to the middle of the rear slope 8, the fixing reinforcing beams 11, 11 are formed in parallel with the side surface 16 at symmetrical positions.
1 to 3 mm deep cement pool 12 to surround
Is formed in a groove shape and in a U-shape in a plan view (in FIG. 1B, it looks like an inverted U-shape). On the other hand, each of the front wall 1 and the rear walls 2 and 2 has The cement pool 12 is continuous with the cement pool 12 provided on the horizontal plane 7, the rear slope 8 and the front slope 9 of the sliding portion 3, and the cement pool 12 is formed integrally therewith. In the above-described femoral component F, the groove-shaped cement reservoir 12 is not separately partitioned on the joint surface with the bone, but each filled bone cement is filled with a predetermined amount. A cement pool connected by a continuous groove is formed so as to be connected at a depth, and a load at a portion where the partition and the bone cement are filled, such as when each component of the cement pool 12 is separately partitioned. There is no load concentration problem or the like due to the difference, and thus, bone resorption and separation of bone cement can be avoided, and the fixation of the bone and the prosthetic member can be stably maintained with a large bonding force. In the above femoral component F,
The cement pool 12 of the sliding portion 3 has a U-shape in plan view, and the cement pool 12 is connected substantially at right angles.
Thus, the cement pool 1 at a large angle of 45 ° or more
When the two are connected, the fixing force increases dramatically. The depth of the cement reservoir 12 is 1
If it is smaller than mm, the cement amount may be small and the bonding strength may be insufficient. On the other hand, the depth 12 of the cement pool is 3 mm.
If it is larger, the volume of the femoral component F is reduced, and the strength of the member itself may be reduced. As described above, according to the present invention, an arc-shaped sliding portion abutting the distal end face of the femur, a plate-shaped front wall abutting the front surface of the femur, It comprises two plate-shaped posterior walls abutting the posterior surface of the femur and an intercondylar slit provided between the two posterior walls for the anterior-posterior cruciate ligament located behind the femur. In a femoral component of an artificial knee joint, wherein a cement pool is provided on a joint surface with the femur, the cement pool is connected to the front wall from one of the rear walls via the sliding portion, and Since the cement pool is folded back on the front wall and further connected to the other of the rear wall via the sliding portion and the cement pool is provided in a U-shape, the fixing force between the femoral component and the bone cement is increased. Is small and therefore This has an excellent effect that loosening with bone and bone resorption due to the loosening can be effectively prevented.
【図面の簡単な説明】
【図１】 本発明の一実施形態に係る大腿骨コンポーネ
ントを示し、（ａ）は平面図、（ｂ）は正面図、（ｃ）
は側面図である。
【図２】 従来例の生体補綴部材としての大腿骨コンポ
ーネントの平面図である。
【符号の説明】
Ｆ ・・大腿骨コンポーネント，Ｓ ・・ステム，Ｂ ・
・膝蓋骨，１ ・・前壁，
２ ・・後壁，３ ・・摺動部，４ ・・顆間スリット，
５、６ ・・内側面，７・・水平面，８ ・・後斜面，９
・・前斜面，１６ ・・側面，１１ ・・梁，１２、３
３ ・・セメント溜まり，３１ ・・ネック，３２ ・・
ステム本体BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a femoral component according to an embodiment of the present invention, wherein (a) is a plan view, (b) is a front view, and (c).
Is a side view. FIG. 2 is a plan view of a femoral component as a conventional bioprosthetic member. [Explanation of symbols] F · · · femoral component, S · · · stem, B ·
・ Patella, 1 ・ ・ Anterior wall, 2 ・ ・ Back wall, 3 ・ ・ Sliding part, 4 ・ ・ Intercondylar slit,
5, 6 · · · inner surface, 7 · · horizontal surface, 8 · · · rear slope, 9
..Front slope, 16 Side surface, 11 Beam, 12,3
3 ··· Cement pool, 31 ··· Neck, 32 ···
Stem body
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61F 2/30 A61F 2/28 ＷＰＩ（ＤＩＡＬＯＧ)──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) A61F 2/30 A61F 2/28 WPI (DIALOG)
Claims (1)
部と、前記大腿骨の前面に当接する板状の前壁と、前記
大腿骨に後面に当接する２個の板状の後壁と、前記大腿
骨の後方に位置する前後十字靱帯用に前記２個の後壁の
間に設けられた顆間スリットとからなるとともに、前記
大腿骨との接合面にセメント溜まりを設けてなる、人工
膝関節の大腿骨コンポーネントであって、前記セメント
溜まりを前記後壁の一方から前記摺動部を経て前記前壁
に連続させ、かつ前記セメント溜まりを前記前壁で折り
返して、さらに前記摺動部を経て前記後壁の他方に連続
させて、前記セメント溜まりをコ字状に設けたことを特
徴とする人工膝関節の大腿骨コンポーネント。(57) [Claim 1] An arc-shaped sliding portion abutting on a distal end surface of a femur, a plate-shaped front wall abutting on a front surface of the femur, and a rear surface on the femur. And two interplate condylar slits provided between the two posterior walls for the anterior-posterior cruciate ligament located behind the femur and the femoral bone. A femoral component of an artificial knee joint comprising a cement pool at the joint surface of the artificial knee joint, wherein the cement pool is connected to the front wall via the sliding portion from one of the rear walls, and the cement pool is provided. A femoral component for a knee joint prosthesis, wherein the cement reservoir is provided in a U-shape by being folded back at the front wall and further connected to the other of the rear wall via the sliding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31252995A JP3495161B2 (en) | 1995-11-30 | 1995-11-30 | Femoral component of a knee prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31252995A JP3495161B2 (en) | 1995-11-30 | 1995-11-30 | Femoral component of a knee prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09149908A JPH09149908A (en) | 1997-06-10 |
| JP3495161B2 true JP3495161B2 (en) | 2004-02-09 |
Family
ID=18030330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31252995A Expired - Fee Related JP3495161B2 (en) | 1995-11-30 | 1995-11-30 | Femoral component of a knee prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3495161B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012000520A (en) * | 2005-12-15 | 2012-01-05 | Zimmer Inc | Distal femoral knee prosthesis |
| US9173744B2 (en) | 2010-09-10 | 2015-11-03 | Zimmer Gmbh | Femoral prosthesis with medialized patellar groove |
| US9301845B2 (en) | 2005-06-15 | 2016-04-05 | P Tech, Llc | Implant for knee replacement |
| US9308095B2 (en) | 2011-06-16 | 2016-04-12 | Zimmer, Inc. | Femoral component for a knee prosthesis with improved articular characteristics |
| US10070966B2 (en) | 2011-06-16 | 2018-09-11 | Zimmer, Inc. | Femoral component for a knee prosthesis with bone compacting ridge |
| US10130375B2 (en) | 2014-07-31 | 2018-11-20 | Zimmer, Inc. | Instruments and methods in performing kinematically-aligned total knee arthroplasty |
| US10136997B2 (en) | 2015-09-29 | 2018-11-27 | Zimmer, Inc. | Tibial prosthesis for tibia with varus resection |
| US10441429B2 (en) | 2011-06-16 | 2019-10-15 | Zimmer, Inc. | Femoral component for a knee prosthesis with improved articular characteristics |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5168682B2 (en) * | 2006-12-27 | 2013-03-21 | 哲 本川 | Artificial joint fixation stem |
-
1995
- 1995-11-30 JP JP31252995A patent/JP3495161B2/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9750612B2 (en) | 2005-06-15 | 2017-09-05 | P Tech, Llc | Methods and systems for providing gender specific pharmaceuticals |
| US10806590B2 (en) | 2005-06-15 | 2020-10-20 | P Tech, Llc | Methods and systems for providing gender specific pharmaceuticals |
| US9301845B2 (en) | 2005-06-15 | 2016-04-05 | P Tech, Llc | Implant for knee replacement |
| US10433966B2 (en) | 2005-12-15 | 2019-10-08 | Zimmer, Inc. | Distal femoral knee prostheses |
| US9592127B2 (en) | 2005-12-15 | 2017-03-14 | Zimmer, Inc. | Distal femoral knee prostheses |
| JP2012000520A (en) * | 2005-12-15 | 2012-01-05 | Zimmer Inc | Distal femoral knee prosthesis |
| US10322004B2 (en) | 2010-09-10 | 2019-06-18 | Zimmer Gmbh | Femoral prosthesis with lateralized patellar groove |
| US9173744B2 (en) | 2010-09-10 | 2015-11-03 | Zimmer Gmbh | Femoral prosthesis with medialized patellar groove |
| US9867708B2 (en) | 2010-09-10 | 2018-01-16 | Zimmer Gmbh | Femoral prosthesis with lateralized patellar groove |
| US10441429B2 (en) | 2011-06-16 | 2019-10-15 | Zimmer, Inc. | Femoral component for a knee prosthesis with improved articular characteristics |
| US10070966B2 (en) | 2011-06-16 | 2018-09-11 | Zimmer, Inc. | Femoral component for a knee prosthesis with bone compacting ridge |
| US10045850B2 (en) | 2011-06-16 | 2018-08-14 | Zimmer, Inc. | Femoral component for a knee prosthesis with improved articular characteristics |
| US9308095B2 (en) | 2011-06-16 | 2016-04-12 | Zimmer, Inc. | Femoral component for a knee prosthesis with improved articular characteristics |
| US11246710B2 (en) | 2011-06-16 | 2022-02-15 | Zimmer, Inc. | Femoral component for a knee prosthesis with improved articular characteristics |
| US10130375B2 (en) | 2014-07-31 | 2018-11-20 | Zimmer, Inc. | Instruments and methods in performing kinematically-aligned total knee arthroplasty |
| US10939923B2 (en) | 2014-07-31 | 2021-03-09 | Zimmer, Inc. | Instruments and methods in performing kinematically-aligned total knee arthroplasty |
| US10136997B2 (en) | 2015-09-29 | 2018-11-27 | Zimmer, Inc. | Tibial prosthesis for tibia with varus resection |
| US10631991B2 (en) | 2015-09-29 | 2020-04-28 | Zimmer, Inc. | Tibial prosthesis for tibia with varus resection |
| US11491018B2 (en) | 2015-09-29 | 2022-11-08 | Zimmer, Inc. | Tibial prosthesis for tibia with varus resection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09149908A (en) | 1997-06-10 |
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