JP4252708B2 - Auxiliary block for cutting tibia, etc. - Google Patents

Auxiliary block for cutting tibia, etc. Download PDF

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JP4252708B2
JP4252708B2 JP2000172359A JP2000172359A JP4252708B2 JP 4252708 B2 JP4252708 B2 JP 4252708B2 JP 2000172359 A JP2000172359 A JP 2000172359A JP 2000172359 A JP2000172359 A JP 2000172359A JP 4252708 B2 JP4252708 B2 JP 4252708B2
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cutting
auxiliary block
plate body
tibia
guide
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JP2001346800A (en
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裕正 三浦
隆二 長峰
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Senko Medical Instrument Manufacturing Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A61B17/154—Guides therefor for preparing bone for knee prosthesis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A61B17/154—Guides therefor for preparing bone for knee prosthesis
    • A61B17/155—Cutting femur
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • A61B17/15—Guides therefor
    • A61B17/154—Guides therefor for preparing bone for knee prosthesis
    • A61B17/157—Cutting tibia

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  • Orthopedic Medicine & Surgery (AREA)
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  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、脛骨等を追加切断するような場合にカッタの案内として用いられる切断用補助ブロックに関するものである。
【０００２】
【従来の技術】
人工膝関節置換術においては、図７に示すように、大腿骨１１と脛骨１２の関節部をそれぞれ切断してその切断個所に大腿骨コンポーネーント１４と脛骨コンポーネント１５とを取り付けることが行われる。
この場合、選ばれた大腿骨コンポーネント１４と脛骨コンポーネント１５が患者の人工膝関節として正しく機能するように、専用のセット工具で大腿骨１１と脛骨１２を切断するが、様々な事情により骨切りを追加しなければならないことがしばしば起こる。
【０００３】
このような場合の骨の追加切断は、これまで、前述の専用セット工具或いは再切除工具で行っている。
【０００４】
ところで、脛骨１２を例にとると、脛骨コンポーネント１５が取り付けられる切断面１２ａの追加の切断態様は、上下幅の大小だけでなく、患者の直立状態で水平となるフラット状態、後方に傾斜する後傾状態、内側や外側に傾斜する内反状態或いは外反状態など様々である。
【０００５】
【発明が解決しようとする課題】
ところが、従来のセット工具と再切除工具の両方共、追加切断の修正段数が１つしかなく、融通が利かないので、様々な状況に対応するためには多種類の工具を用意しなければならず、管理が煩わしい上に不経済でもある。
【０００６】
本発明の課題は上記従来の問題点を解決することであり、１個で最低２種の追加切断に対応することができる脛骨等の切断用補助ブロックを提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記の目的を達成するために、請求項１記載の発明は、固定孔を有し一方の端部の幅方向にガイドスリットを形成した複数の板体を、上記端部を他の板体に直角に連結し切断空間を形成して一体に設けた構成とした。
【０００８】
この手段では、１つの板体の内面を骨の既切断面に接触されるとともに、その板体に直角に連結された他の板体を骨に固定孔を利用して固定し、該固定板体のガイドスリットでカッタを案内して骨を切断する。
板体の連結数は最低２個であるので、本切断用補助ブロックは最低２個のガイドスリットを持つ。
【０００９】
請求項１記載の脛骨等の切断用補助ブロックにおいて、複数のガイドスリットを互いに平行に１以上の板体に形成することができる（請求項２）。
この構成によれば、本切断用補助ブロックは最低３個のガイドスリットを持つことになる。
【００１０】
請求項１又は２記載の脛骨等の切断用補助ブロックにおいて、骨の既切断面に接する基準面に対するガイドスリットの形成状態を板体どうしにおいて互いに異ならせることが好ましい（請求項３）。
この構成では、板体の数と同数の追加切断方式に対応することができるようになる。
【００１１】
【発明の実施の形態】
発明の実施の形態を添付図面を参照して説明する。
図１ないし図４は本発明に係る脛骨等の切断用補助ブロックの実施の形態を示す。この切断用補助ブロックＡは、複数（図のものは６個）の固定孔１ａと２個のガイドスリット１ｓ，１ｔを持つ板体１と、複数（同、６個）の固定孔２ａと２個のガイドスリット２ｓ，２ｔを持つ板体２とを切断空間Ｓを形成して直角に一体に連結して成る。
【００１２】
各ガイドスリット１ｓ，１ｔ、２ｓ，２ｔはカッタ（図示せず）を案内するものであり、板体１，２の連結端の厚肉部１ｂ，２ｂに、各板体１，２の幅方向に沿って互いに同一のスリット幅（図のものは１．２ｍｍ）でそれぞれ形成されている。
【００１３】
ガイドスリット１ｓ，１ｔは互いに平行であり、かつそれらの使用時に骨の既切断面１２ａに接触されて基準面となる板体２の内面２ｃに対し板体１の正面視（図３）及び側面視（図２）において平行（フラット）にされている。
なお、図のガイドスリット１ｓの骨の追加切断量（板体２の内面２ｃからのガイドスリット１ｓの下側の面の距離）は２ｍｍ、ガイドスリット１ｔの追加切断量は３ｍｍに設定されている。
【００１４】
また、ガイドスリット２ｓ，２ｔは相互に平行であり、かつそれらの使用時に骨の既切断面１２ａに接触されて基準面となる板体１の内面１ｃに対し板体２の正面視（図４）において平行にされるとともに、板体２の側面視（図２）においてガイドスリット２ｓ，２ｔの延長線が内面２ｃから遠ざかるにしたがって板体１の内面１ｃから離れるように傾斜（後傾）されている。図のガイドスリット２ｓ，２ｔの幅方向の傾斜角度のθは３度、ガイドスリット２ｓの最小追加切断量は２ｍｍ、ガイドスリット２ｔの最小追加切断量は３ｍｍに設定されている。
【００１５】
上記の構成とされた脛骨等の切断用補助ブロックＡで、例えば骨のフラットな既切断面１２ａを２ｍｍフラットに追加切断する場合は、板体２の内面２ｃを既切断面１２ａに正しく接触させた状態で板体１の固定孔１ａに固定ピンや固定ねじなどの固定具（図示せず）を挿入して骨に板体１を固定し、ガイドスリット１ｓでカッタを案内して骨を切断する。骨を３ｍｍ追加切断するときはガイドスリット１ｔでカッタを案内する。
【００１６】
また、骨を３度の後傾角度で追加切断する場合は、板体１の内面１ｃを既切断面１２ａに接触させて前記の要領で板体２を骨の前面に固定し、ガイドスリット２ｓ又は２ｔでカッタを案内して行う。
【００１７】
このように、本切断用補助ブロックＡは、４種の追加切断に対応することができるので、管理に煩わされることがなく、しかもコスト安につく。また使用板体に連結された他の板体の内面が基準面として活用されるので合理的である。
【００１８】
図５と図６は本発明に係る脛骨等の切断用補助ブロックの他の実施の形態を示す。この切断用補助ブロックＢの基本構造は前記切断用補助ブロックＡと同じで、複数（図のものは６個）の固定孔４ａと２個のガイドスリット４ｓ，４ｔを持つ板体４と、複数（６個）の固定孔５ａと２個のガイドスリット５ｓ，５ｔを持つ板体５とを切断空間Ｓ（図２参照）を形成して直角に一体に連結して成る。
【００１９】
ガイドスリット４ｓ，４ｔ、５ｓ，５ｔはカッタを案内するものであり、板体４，５の連結端の厚肉部４ｂ，５ｂに、各板体４，５の幅方向に沿って互いに同一のスリット幅（１．２ｍｍ）でそれぞれ形成されている。
【００２０】
ガイドスリット４ｓ，４ｔは互いに平行であり、かつそれらの使用時に骨の既切断面１２ａ（図２参照）に接触されて基準面となる板体５の内面５ｃに対し板体４の正面視（図５）において右広り状に傾斜され、板体４の側面視においてガイドスリット４ｓ，４ｔの幅方向が板体５の内面５ｃと平行にされている。
図のガイドスリット４ｓ，４ｔの長さ方向の傾斜角度αは２度、ガイドスリット４ｓの最小追加切断量は２ｍｍ、ガイドスリット４ｔの最小追加切断量は３ｍｍに設定されている。
【００２１】
また、ガイドスリット５ｓ，５ｔも互いに平行であり、かつそれらの使用時に骨の既切断面１２ａに接触されて基準面となる板体４の内面４ｃに対し板体５の正面視（図６）において左広り状に傾斜され、板体５の側面視においてガイドスリット５ｓ，５ｔの幅方向が板体４の内面４ｃと平行にされている。
図のガイドスリット５ｓ，５ｔの長さ方向の傾斜角度βは２度、ガイドスリット５ｓの最小追加切断量は２ｍｍ、ガイドスリット５ｔの最小追加切断量は３ｍｍに設定されている。
【００２２】
上記構成の切断用補助ブロックＢの使用方法は前述の切断用補助ブロックＡと基本的に同じであり、ガイドスリット４ｓ又は４ｔでカッタを案内した場合は、骨は図５で右下に角度αで傾斜して追加切断され、またガイドスリット５ｓ又は５ｔでカッタを案内したときは、骨は図６で左下に角度βで傾斜して追加切断される。
なお、ガイドスリット４ｓ，４ｔ、５ｓ，５ｔによる脛骨の切断は、通常、内反切断、又は外反切断となる。
【００２３】
切断用補助ブロックＢにおいても切断用補助ブロックＡと同一の効果が得られる。
【００２４】
図の各板体１，２，４，５には２個のガイドスリットが互いに平行にそれぞれ設けられているが、ガイドスリットの形成数を１個又は３個以上とすることができ、また複数のガイドスリットを互いに平行にしないで形成することもできる。
【００２５】
基準面となる板体の内面に対するガイドスリットの形成状態、つまり傾斜角度θ、α、β、平行（角度０）等は図のものに限られるものではなく、種々変更できることは言うまでもない。
【００２６】
また、ガイドスリットのスリット幅は同一とされているが、肉厚の異なるカッタの使用を可能にするために、スリット幅の異なる１以上のガイドスリットを設けることもある。
板体１と板体４又は板体５を組み合わせたり、板体２と板体４又は板体５を組み合わせたりすることもある。場合によっては、板体の連結数を３個とすることも可能である。
【００２７】
【発明の効果】
以上説明したように、請求項１記載の発明によれば、２種以上の追加切断が可能な脛骨等の切断用補助ブロックを得ることができる。したがって、少数の切断用補助ブロックで様々な状況に対応できるようになり、管理等がし易くなる上、コスト安になる。
【００２８】
請求項１記載の脛骨等の切断用補助ブロックにおいて、複数のガイドスリットを互いに平行に１以上の板体に形成した場合は、追加切数の段数が増加し、しかも追加切断方式が同一のガイドスリットが複数並べて設けられているので、作業性が向上する。
【００２９】
請求項１又は２記載の脛骨等の切断用補助ブロックにおいて、骨の既切断面に接する基準面に対するガイドスリットの形成状態を板体どうしにおいて互いに異ならせた場合は、２種以上の追加切断方式を簡単に選択することができる。
【図面の簡単な説明】
【図１】 本発明に係る脛骨等の切断用補助ブロックの実施の形態を示す外観図である。
【図２】 図１の切断用補助ブロックの断面図である。
【図３】 図１の切断用補助ブロックの正面図である。
【図４】 図１の切断用補助ブロックの他の板体を前に出した正面図である。
【図５】 本発明に係る脛骨等の切断用補助ブロックの他の実施の形態を示す正面図である。
【図６】 図５の切断用補助ブロックの他の板体を前に出した正面図である。
【図７】 人工膝関節を示す図である。
【符号の説明】
Ａ，Ｂ 切断用補助ブロック １，２，４，５ 板体
１ａ，２ａ，４ａ，５ａ 固定孔 １ｂ，２ｂ，４ｂ，５ｂ 厚肉部
１ｃ，２ｃ，４ｃ，５ｃ 内面（基準面）
１ｓ，１ｔ，２ｓ，２ｔ，４ｓ，４ｔ，５ｓ，５ｔ ガイドスリット
Ｓ 切断空間 １２ａ 既切断面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an auxiliary cutting block used as a guide for a cutter in the case of additionally cutting a tibia or the like.
[0002]
[Prior art]
In the artificial knee Takashi Seki replacement surgery, as shown in FIG. 7, lines be attached to the femur Konponento 14 and tibial component 15 to the cut point joint portion of the femur 11 and the tibia 12 by cutting each Is called.
In this case, as the femoral component 14 and the tibial component 15 that has been selected to function properly as an artificial knee function clause of the patient, but to cut the femur 11 and the tibia 12 in a dedicated set of tools, osteotomy due to various circumstances It often happens that you have to add.
[0003]
The additional cutting of the bone in such a case has been performed with the above-described dedicated setting tool or re-cutting tool.
[0004]
By the way, taking the tibia 12 as an example, the additional cutting aspect of the cutting surface 12a to which the tibial component 15 is attached is not only the size of the vertical width, but also the flat state that is horizontal in the patient's upright state, There are various states such as a tilted state, a varus state inclined inward and outward, or a valgus state.
[0005]
[Problems to be solved by the invention]
However, both the conventional set tool and the recutting tool have only one additional cutting correction stage and are not flexible, so a variety of tools must be prepared to cope with various situations. It is both cumbersome and uneconomical.
[0006]
An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide an auxiliary block for cutting a tibia or the like that can cope with at least two types of additional cutting with a single piece.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that a plurality of plate bodies having a fixing hole and having guide slits formed in the width direction of one end portion are used as the other plate body. It was connected at right angles to form a cutting space, which was integrally provided.
[0008]
In this means, the inner surface of one plate is brought into contact with the already cut surface of the bone, and another plate connected to the plate at a right angle is fixed to the bone using a fixing hole. The bone is cut by guiding the cutter through the body guide slit.
Since the number of plates connected is at least two, the auxiliary cutting block has at least two guide slits.
[0009]
In the auxiliary block for cutting a tibia or the like according to claim 1, a plurality of guide slits can be formed in one or more plate bodies in parallel with each other (claim 2).
According to this configuration, the main cutting auxiliary block has at least three guide slits.
[0010]
In the auxiliary block for cutting a tibia or the like according to claim 1 or 2, it is preferable that the formation state of the guide slit with respect to the reference surface in contact with the already-cut surface of the bone is different between the plates (claim 3).
With this configuration, the same number of additional cutting methods as the number of plates can be accommodated.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 4 show an embodiment of an auxiliary block for cutting a tibia or the like according to the present invention. This auxiliary cutting block A includes a plate body 1 having a plurality (six in the figure) of fixing holes 1a and two guide slits 1s and 1t, and a plurality (six of them) of fixing holes 2a and 2 A plate body 2 having a plurality of guide slits 2s and 2t is formed by integrally forming a cutting space S at a right angle.
[0012]
Each guide slit 1s, 1t, 2s, 2t guides a cutter (not shown), and the thickness direction 1b, 2b of the connecting end of the plates 1, 2 is arranged in the width direction of each plate 1, 2. Are formed with the same slit width (1.2 mm in the figure).
[0013]
The guide slits 1 s and 1 t are parallel to each other, and when they are used, the plate body 1 is viewed from the front (FIG. 3) and the side surface with respect to the inner surface 2 c of the plate body 2 that is in contact with the already-cut surface 12 a of the bone. In view (FIG. 2), they are parallel (flat).
The additional cutting amount of the bone of the guide slit 1s (the distance of the lower surface of the guide slit 1s from the inner surface 2c of the plate body 2) is set to 2 mm, and the additional cutting amount of the guide slit 1t is set to 3 mm. .
[0014]
Further, the guide slits 2s and 2t are parallel to each other, and when they are used, they are brought into contact with the already-cut surface 12a of the bone and viewed from the front surface of the plate body 2 with respect to the inner surface 1c of the plate body 1 serving as a reference surface (FIG. 4). ), And the extension lines of the guide slits 2s and 2t are inclined (rearly tilted) away from the inner surface 1c of the plate body 1 as the distance from the inner surface 2c increases in a side view of the plate body 2 (FIG. 2). ing. In the figure, the inclination angle θ in the width direction of the guide slits 2s and 2t is set to 3 degrees, the minimum additional cutting amount of the guide slit 2s is set to 2 mm, and the minimum additional cutting amount of the guide slit 2t is set to 3 mm.
[0015]
In the auxiliary block A for cutting, such as the tibia, having the above-described configuration, for example, when additionally cutting the flat already cut surface 12a of the bone into 2 mm flat, the inner surface 2c of the plate 2 is correctly brought into contact with the already cut surface 12a. In this state, a fixing tool (not shown) such as a fixing pin or a fixing screw is inserted into the fixing hole 1a of the plate body 1 to fix the plate body 1 to the bone, and the cutter is guided by the guide slit 1s to cut the bone. To do. When an additional 3 mm of bone is cut, the cutter is guided by the guide slit 1t.
[0016]
When the bone is additionally cut at a back tilt angle of 3 degrees, the inner surface 1c of the plate body 1 is brought into contact with the already cut surface 12a, and the plate body 2 is fixed to the front surface of the bone as described above, and the guide slit 2s. Or, guide the cutter at 2t.
[0017]
In this way, the main cutting auxiliary block A can cope with four types of additional cutting, so that it is not bothered by management and is inexpensive. In addition, it is rational because the inner surface of another plate connected to the plate used is used as a reference surface.
[0018]
5 and 6 show another embodiment of an auxiliary block for cutting a tibia or the like according to the present invention. The basic structure of the cutting auxiliary block B is the same as that of the cutting auxiliary block A, and the plate body 4 having a plurality of (six in the figure) fixing holes 4a and two guide slits 4s, 4t, and a plurality of The (six) fixing holes 5a and the plate body 5 having two guide slits 5s, 5t are integrally connected at right angles to form a cutting space S (see FIG. 2).
[0019]
The guide slits 4s, 4t, 5s, and 5t guide the cutter, and are identical to the thick portions 4b and 5b at the connecting ends of the plates 4 and 5 along the width direction of the plates 4 and 5. Each is formed with a slit width (1.2 mm).
[0020]
The guide slits 4s and 4t are parallel to each other, and when they are used, the plate body 4 is viewed from the front surface (in FIG. 2) with respect to the inner surface 5c of the plate body 5 that is brought into contact with the already cut surface 12a (see FIG. 2) of the bone. 5), the guide slits 4s and 4t are parallel to the inner surface 5c of the plate body 5 in a side view.
In the drawing, the inclination angle α in the length direction of the guide slits 4s and 4t is set to 2 degrees, the minimum additional cutting amount of the guide slit 4s is set to 2 mm, and the minimum additional cutting amount of the guide slit 4t is set to 3 mm.
[0021]
Further, the guide slits 5s and 5t are also parallel to each other, and when they are used, the plate body 5 is viewed from the front surface with respect to the inner surface 4c of the plate body 4 which is brought into contact with the already cut surface 12a of the bone and becomes the reference surface (FIG. 6). The width of the guide slits 5 s and 5 t is made parallel to the inner surface 4 c of the plate 4 in a side view of the plate 5.
In the drawing, the inclination angle β in the length direction of the guide slits 5s and 5t is set to 2 degrees, the minimum additional cutting amount of the guide slit 5s is set to 2 mm, and the minimum additional cutting amount of the guide slit 5t is set to 3 mm.
[0022]
The method of using the cutting auxiliary block B having the above-described configuration is basically the same as that of the cutting auxiliary block A described above. When the cutter is guided by the guide slit 4s or 4t, the bone is angled to the lower right in FIG. When the cutter is guided by the guide slit 5s or 5t, the bone is additionally cut at an angle β at the lower left in FIG.
Note that the cutting of the tibia by the guide slits 4s, 4t, 5s, and 5t is usually varus cutting or valgus cutting.
[0023]
The same effect as that of the auxiliary cutting block A can be obtained in the auxiliary cutting block B.
[0024]
Each plate body 1, 2, 4, 5 in the figure has two guide slits in parallel with each other. However, the number of guide slits can be one or three or more. The guide slits can be formed without being parallel to each other.
[0025]
Needless to say, the formation state of the guide slits with respect to the inner surface of the plate body serving as the reference surface, that is, the inclination angles θ, α, β, parallel (angle 0), etc. is not limited to that shown in the figure, and various changes can be made.
[0026]
Further, although the slit widths of the guide slits are the same, one or more guide slits having different slit widths may be provided in order to enable use of cutters having different thicknesses.
The plate body 1 and the plate body 4 or the plate body 5 may be combined, or the plate body 2 and the plate body 4 or the plate body 5 may be combined. In some cases, the number of plates connected can be three.
[0027]
【The invention's effect】
As described above, according to the first aspect of the present invention, it is possible to obtain a cutting auxiliary block such as a tibia that can perform two or more additional cuttings. Accordingly, it becomes possible to cope with various situations with a small number of auxiliary blocks for cutting, and management and the like are facilitated, and cost is reduced.
[0028]
The auxiliary block for cutting a tibia or the like according to claim 1, wherein when the plurality of guide slits are formed in one or more plates parallel to each other, the number of steps of the additional cutting increases and the additional cutting method is the same. Since a plurality of slits are provided side by side, workability is improved.
[0029]
The auxiliary block for cutting of tibia or the like according to claim 1 or 2, wherein two or more additional cutting methods are used when the plate slits are formed differently from each other with respect to a reference plane in contact with the already-cut surface of the bone. Can be easily selected.
[Brief description of the drawings]
FIG. 1 is an external view showing an embodiment of an auxiliary block for cutting a tibia or the like according to the present invention.
FIG. 2 is a cross-sectional view of the cutting auxiliary block of FIG. 1;
FIG. 3 is a front view of the cutting auxiliary block of FIG. 1;
4 is a front view showing another plate body of the auxiliary cutting block shown in FIG.
FIG. 5 is a front view showing another embodiment of an auxiliary block for cutting a tibia or the like according to the present invention.
6 is a front view showing another plate body of the auxiliary block for cutting shown in FIG.
FIG. 7 is a diagram illustrating an artificial knee function clause.
[Explanation of symbols]
A, B Auxiliary block for cutting 1, 2, 4, 5 Plate body 1a, 2a, 4a, 5a Fixing hole 1b, 2b, 4b, 5b Thick part 1c, 2c, 4c, 5c Inner surface (reference surface)
1s, 1t, 2s, 2t, 4s, 4t, 5s, 5t Guide slit S Cutting space 12a Already cut surface

Claims (3)

固定孔を有し一方の端部の幅方向にガイドスリットを形成した複数の板体が、上記端部を他の板体に直角に連結し切断空間を形成して一体に設けられたことを特徴とする脛骨等の切断用補助ブロック。A plurality of plates having a fixing hole and having guide slits formed in the width direction of one end are integrally provided by connecting the end to the other plate at right angles to form a cutting space. Auxiliary block for cutting tibia and other features. 複数のガイドスリットが互いに平行に１以上の板体に形成されたことを特徴とする請求項１記載の脛骨等の切断用補助ブロック。The auxiliary block for cutting a tibia or the like according to claim 1, wherein a plurality of guide slits are formed in one or more plates in parallel with each other. 骨の既切断面に接する基準面に対するガイドスリットの形成状態が板体どうしにおいて互いに異ならされたことを特徴とする請求項１又は２記載の脛骨等の切断用補助ブロック。The auxiliary block for cutting tibia or the like according to claim 1 or 2, wherein the formation state of the guide slit with respect to the reference surface in contact with the already cut surface of the bone is different between the plates.
JP2000172359A 2000-06-08 2000-06-08 Auxiliary block for cutting tibia, etc. Expired - Lifetime JP4252708B2 (en)

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Application Number Priority Date Filing Date Title
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JP2004008708A (en) * 2002-06-11 2004-01-15 Osaka Industrial Promotion Organization Support tool and support tool set for supporting artificial knee joint replacement
GB2482702A (en) 2010-08-11 2012-02-15 Biomet Uk Healthcare Ltd Ligament balancer
KR101180017B1 (en) 2011-01-10 2012-09-05 이상재 Bone fractures cutting fix frame for alveolar bone implantation and bone fractures cutting method
US11602355B2 (en) * 2017-12-22 2023-03-14 Medacta International Sa Cutting guide for periacetabular osteotomy and kit for periacetabular osteotomy
JP7189758B2 (en) * 2018-12-25 2022-12-14 京セラ株式会社 Surgical instruments and surgical instrument systems

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