JPS6134337B2 - - Google Patents
Info
- Publication number
- JPS6134337B2 JPS6134337B2 JP6522678A JP6522678A JPS6134337B2 JP S6134337 B2 JPS6134337 B2 JP S6134337B2 JP 6522678 A JP6522678 A JP 6522678A JP 6522678 A JP6522678 A JP 6522678A JP S6134337 B2 JPS6134337 B2 JP S6134337B2
- Authority
- JP
- Japan
- Prior art keywords
- bone
- ceramic member
- bolt
- diameter
- cavity
- 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
Links
- 210000000988 bone and bone Anatomy 0.000 claims description 43
- 239000000919 ceramic Substances 0.000 claims description 19
- 230000007547 defect Effects 0.000 claims description 8
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000008468 bone growth Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000316 bone substitute Substances 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000002082 fibula Anatomy 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Prostheses (AREA)
Description
【発明の詳細な説明】
本発明は整形外科等の外科医療の分野において
骨の切除手術を行つた後の骨の欠損部を補綴する
ためのセラミツク部材に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ceramic member for prosthetizing a bone defect after bone resection surgery in the field of surgical medicine such as orthopedics.
整形外科等の外科領域において、骨部に腫瘍、
ガンその他の疾患が発生し、患部を切除した場合
や交通事故、労働災害等により、骨の損傷をきた
して切除したような場合、切除した部分に患者自
身の骨で、例えば腸骨、腓骨など比較的受ける荷
重の少ない部位の骨を切り採つて充填することが
行なわれている。 In the surgical field such as orthopedics, tumors in bone areas,
If cancer or other disease occurs and the affected part is removed, or if the bone is damaged due to a traffic accident or industrial accident and is removed, the removed part may be replaced with the patient's own bone, such as the ilium or fibula. Bone is cut out and filled in areas that receive relatively little load.
また、患者以外の骨では免疫性の点や供給の面
で問題があり、患者自身の骨を用いるのが最良で
あるが、ガンなどの場合には除する骨量が多く、
患者自身からの採骨可能な量も自ら限度があり、
しかも疾患部以外の他の部位からさらに骨を切り
採ることは患者の負担をいつそう増大させるとい
う難点がある。 In addition, bone from other than the patient has problems in terms of immunity and supply, so it is best to use the patient's own bone, but in cases such as cancer, there is a large amount of bone to remove.
There is a limit to the amount of bone that can be collected from the patient himself.
Moreover, there is a problem in that cutting out bone from other parts than the diseased area increases the burden on the patient.
本発明は上述の如き事情に鑑みて開発したもの
であり、骨の増生が容易で人体組織に対する為害
性がなく、しかも骨組織との親和性が極めて良好
なるアルミナセラミツク等で構成した代用骨部材
として用いるための、特に骨との接合をより強固
にすることができるようにした構造の骨欠損充填
用セラミツク部材を提供せんとするものである。 The present invention was developed in view of the above-mentioned circumstances, and provides a bone substitute material made of alumina ceramic, etc., which facilitates bone growth, is not harmful to human tissue, and has extremely good affinity with bone tissue. It is an object of the present invention to provide a ceramic member for filling bone defects, which is used as a bone defect-filling member and has a structure that particularly allows for stronger bonding with bone.
以下、図によつて具体的に説明すれば、１は代
用骨とするセラミツク部材で、アルミナ、アパタ
イト等を成分とする焼結体で形成され、各種形状
のものが準備され、天然の骨Ｂが切除された欠損
部にほぼ以合つた形状のものが選択され、骨Ｂの
補綴に供用されるがこのセラミツク部材１には、
図に示す如く、骨Ｂに対接する側にめくら孔より
なる空胴２を要所に設けてあり、この空胴２は骨
の増生、進入を許容し、骨Ｂと、入工骨部材とし
てのセラミツク部材１とを強固に結合させるため
のものであり、また、このセラミツク部材１の所
要個所には、骨Ｂに対しセラミツク部材１を固定
する固定具としての、例えばボルトＮを挿入する
複数個の貫通孔３が穿設してある。また、この貫
通孔３の骨Ｂに接する側の孔径は、同じ骨Ｂに接
する側に設けた空胴２とほぼ同様の大きな孔径に
穿設してあり、ボルトＮを挿入し、セラミツク部
材１を骨Ｂに固定した場合に形成される空胴２′
中に骨Ｂが増生し、進入することによつて、空胴
２と同様の役割を果し、骨Ｂとセラミツク部材１
とはきわめて強固に結合させることができる。こ
のように固定具としてのボルトＮを貫通孔３に挿
入して骨Ｂと、この骨Ｂより分離した骨B′に螺合
することによつて分離した骨B′を共締めし、骨Ｂ
に対して骨B′並びに人工骨部材としてのセラミツ
ク部材１を固定することもできる。ところで、固
定具として用いるボルトＮは骨Ｂ，B′にねじ込
み、セラミツク部材１を強固に保持するためには
ボルトＮのネジ山は比較的深い必要があり、した
がつて臨床的に用いることができるためにはボル
トＮの外径は最低２mm以上であることが好まし
い。また骨組織は0.08mm以下の狭い空隙にはほと
んど進入しないことが実験結果から確認されてお
り、このため、ボルトＮを貫通孔３に挿入した場
合に形成される空胴２′は少くとも0.08mm以上で
あることが望ましい。さらに欠損部の骨Ｂ側に設
けられ骨の増生進入が仕易く、結合をより強固に
するためには第３図、第４図にて示したような
種々の形状をした空胴２ａ〜２ｄが考えられ、必
要に応じて空胴２ａ，２ｄの如く、内壁面を凹凸
形状にしておくことにより、セラミツク部材１と
骨Ｂとをより強固に結合することができる。ま
た、これら空胴２，２ａ〜２ｄの口径としては、
数mmから10mm程度のものが臨床的に良い結果が得
られた。 Hereinafter, to explain in detail with reference to the drawings, reference numeral 1 denotes a ceramic member used as a bone substitute, which is made of a sintered body containing alumina, apatite, etc., and is prepared in various shapes. A ceramic member 1 with a shape that approximately matches the excised defect is selected and used for prosthesis of bone B.
As shown in the figure, cavities 2 consisting of blind holes are provided at key points on the side facing bone B, and these cavities 2 allow bone growth and intrusion, and are used as bone B and implanted bone components. A plurality of bolts N, for example, are inserted as fixing devices to fix the ceramic member 1 to the bone B at required locations on the ceramic member 1. Through holes 3 are bored. The diameter of the through hole 3 on the side in contact with the bone B is approximately the same as that of the cavity 2 provided on the side in contact with the same bone B, and the bolt N is inserted into the ceramic member 1. Cavity 2' formed when fixed to bone B
By growing and entering the bone B, it plays the same role as the cavity 2, and the bone B and the ceramic member 1
It can be bonded extremely firmly. In this way, the bolt N serving as a fixing device is inserted into the through hole 3 and screwed into the bone B and the bone B' separated from this bone B, thereby tightening the separated bone B' together, and fixing the bone B.
It is also possible to fix the bone B' and the ceramic member 1 as an artificial bone member thereto. By the way, in order to screw the bolt N used as a fixing device into the bones B and B' and firmly hold the ceramic member 1, the screw thread of the bolt N needs to be relatively deep, so it cannot be used clinically. In order to do so, it is preferable that the outer diameter of the bolt N is at least 2 mm or more. Furthermore, it has been confirmed from experimental results that bone tissue hardly enters into narrow gaps of 0.08 mm or less, and therefore, when the bolt N is inserted into the through hole 3, the cavity 2' formed is at least 0.08 mm. It is desirable that the diameter is mm or more. Furthermore, cavities 2a to 2d having various shapes as shown in FIGS. 3 and 4 are provided on the bone B side of the defect to facilitate bone growth and to strengthen the bond. If necessary, the ceramic member 1 and the bone B can be bonded more firmly by making the inner wall surfaces uneven as in the cavities 2a and 2d. In addition, the diameters of these cavities 2, 2a to 2d are as follows:
Clinically good results were obtained with a diameter of several mm to 10 mm.
なお、固定具としてのボルトＮは空胴２，２ａ
〜２ｄ中に骨が増生、進入した後は抜き取つても
何ら問題はなく、このためボルトＮの材質は金属
であつてもさしつかえなく、セラミツク体で形成
したものであれば、そのまゝ抜き取らずに螺合し
たままであつても生体に対し為害性を示すことは
ない。 Note that the bolt N as a fixture is used for the cavities 2, 2a.
There is no problem in removing the bone after it grows and enters during ~2d, so there is no problem even if the material of the bolt N is metal, and if it is made of ceramic, it can be removed as is. Even if they remain screwed together, they do not cause any harm to living organisms.
以上のように、本発明によるセラミツク部材を
骨欠損部の補綴部材として用いることにより、術
後早期に生体の回復がはかられ、かつ回復後も健
康人とほぼ変らない日常生活を送ることも可能と
なり、人類の福祉に多大な貢献をもたらすことが
できる。 As described above, by using the ceramic member of the present invention as a prosthetic member for bone defects, the body can recover early after surgery, and even after recovery, it is possible to lead a daily life almost the same as that of a healthy person. and can make a significant contribution to human welfare.
第１図は本発明による骨欠損部補綴用のセラミ
ツク部材の１例を示したもの、第２図は本発明に
よるセラミツク部材を骨欠損部の補綴に用いた取
付け状態を示した図、第３図はセラミツク部材に
設けた空胴中に骨が増生進入した状態を示した
図、第４図イ，ロ，ハはセラミツク部材に設ける
空胴の形状の例を示したものである。
１：セラミツク部材、２，２ａ〜２ｄ：空胴、
３：貫通孔、Ｎ：ボルト。
FIG. 1 shows an example of the ceramic member for prosthesis of a bone defect according to the present invention, FIG. The figure shows a state in which bone has grown into a cavity provided in a ceramic member, and Figures 4A, 4B, and 4C show examples of the shape of the cavity provided in a ceramic member. 1: Ceramic member, 2, 2a to 2d: Cavity,
3: Through hole, N: Bolt.
Claims (1)
て、所要箇所に固定具挿入用で直径2.5mm以上の
貫通孔を備えるとともに少なくとも骨と接する側
に奥細状を成し、内壁面に凹凸部を形成した口径
が数mmから10mm程度のめくら孔を併設したことを
特徴とする骨欠損部補綴用セラミツク部材。1. A ceramic member for prosthesis of a bone defect, which is equipped with through holes of 2.5 mm or more in diameter for inserting fixing devices at required locations, and has a deep narrow shape at least on the side in contact with the bone, with uneven parts formed on the inner wall surface. A ceramic member for prosthesis of a bone defect characterized by having a blind hole with a diameter of several mm to about 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6522678A JPS54155695A (en) | 1978-05-30 | 1978-05-30 | Ceramic portion material for bone broken portion prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6522678A JPS54155695A (en) | 1978-05-30 | 1978-05-30 | Ceramic portion material for bone broken portion prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54155695A JPS54155695A (en) | 1979-12-07 |
| JPS6134337B2 true JPS6134337B2 (en) | 1986-08-07 |
Family
ID=13280781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6522678A Granted JPS54155695A (en) | 1978-05-30 | 1978-05-30 | Ceramic portion material for bone broken portion prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54155695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63190721U (en) * | 1987-05-26 | 1988-12-08 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067836B2 (en) * | 1986-06-30 | 1994-02-02 | 京セラ株式会社 | Spinous spacer |
| FR3026937B1 (en) * | 2014-10-10 | 2021-10-01 | 3Dceram | SYNTHESIS BLOCK INTENDED TO FILL A BONE DEFECT AND ITS MANUFACTURING PROCESS |
-
1978
- 1978-05-30 JP JP6522678A patent/JPS54155695A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63190721U (en) * | 1987-05-26 | 1988-12-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54155695A (en) | 1979-12-07 |
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