DE2621667C2 - Reinforcement part for cementitious bone fillings or attachments - Google Patents
Reinforcement part for cementitious bone fillings or attachmentsInfo
- Publication number
- DE2621667C2 DE2621667C2 DE19762621667 DE2621667A DE2621667C2 DE 2621667 C2 DE2621667 C2 DE 2621667C2 DE 19762621667 DE19762621667 DE 19762621667 DE 2621667 A DE2621667 A DE 2621667A DE 2621667 C2 DE2621667 C2 DE 2621667C2
- Authority
- DE
- Germany
- Prior art keywords
- reinforcement part
- bone
- part according
- nailing
- metal body
- 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
- 230000002787 reinforcement Effects 0.000 title claims description 30
- 210000000988 bone and bone Anatomy 0.000 title claims description 23
- 239000002184 metal Substances 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 4
- 210000004394 hip joint Anatomy 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000007547 defect Effects 0.000 description 6
- 239000002639 bone cement Substances 0.000 description 4
- 210000001981 hip bone Anatomy 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
- A61B17/8066—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones for pelvic reconstruction
-
- 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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
- A61F2002/30566—Helical springs
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
- A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
-
- 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 for implanting artificial joints
- A61F2002/4631—Special tools for implanting artificial joints the prosthesis being specially adapted for being cemented
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Neurology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Description
4545
Bei der Implantation von Gelenk-Endoprothesen tritt häufig die Schwierigkeit auf, daß bei Patienten der die Endoprothese unterstützende Knochen durch angeborenen, unfall- oder krankheitsbedingten Defekt eine für die Abstützung unzureichende Querschnittsabmessung aufweist. Dieser Mangel an unterstützender Knochensubstanz liegt verhältnismäßig oft bei Hüftknochen vor, in die dann nicht oder nur umständlich eine Hüftgelenk-Kunstschale implantiert werden kann. Es wäre denkbar, die Kunstschale mit einem rückwärtigen, den Raum der fehlenden Knochensubstanz ausfüllenden Ansatz zu versehen, jedoch wären hierbei für jeden Fall unterschiedlich geformte Kunstschalen erforderlich, die — abgesehen von ihren hohe/i Herstellkosten — wegen ihrer Vielzahl kaum auf Vorrat gehalten werden können.When implanting joint endoprostheses, the difficulty often arises that the patient Endoprosthesis-supporting bones due to congenital, accident-related or disease-related defects a for the support has insufficient cross-sectional dimensions. This lack of supportive bone substance is relatively often found in hip bones in which an artificial hip joint shell is not or only awkwardly can be implanted. It would be conceivable to have the art bowl with a rear, the space of the missing bone substance filling approach, but this would be different for each case Shaped artificial bowls required, which - apart from their high manufacturing costs - because of their multitude can hardly be kept in stock.
Der Erfindung liegt die Aufgabe zugrunde, dem Knochenchirurgen ein bequemes, weitgehend universell verwendbares Hilfsmittel zur Überwindung der aus den geschilderten Knochendefekten resultierenden Schwierigkeiten zur Verfugung zu stellen.The invention is based on the object of providing the bone surgeon with a comfortable, largely universal useful aid to overcome the difficulties resulting from the described bone defects to provide.
Die Lösung dieser Aufgabe besteht erfindungsgemäß in einem Bewehrungsteil für zementöse Knochenfüllungen oder -ansätze in Form eines hochkantstehend an den unterstützenden Knochen annagelbaren flächigen Metallkörpers. Mehrere solcher Bewehrungsteile werden nebeneinander so an der defekten Seite des restlichen Knochens angenagelt, daß ihre Flächenteile im Knochendefektraum liegen, der nachfolgend mit Knochenzement ausgefüllt wird, wobei das fehlende Knochenstück nachmodelliert wird.According to the invention, this object is achieved in a reinforcement part for cementitious bone fillings or approaches in the form of a flat surface that can be nailed on edge to the supporting bone Metal body. Several such reinforcement parts are next to each other so on the defective side of the remaining bone nailed so that their surface parts lie in the bone defect space, which follows with Bone cement is filled in, with the missing piece of bone being modeled.
Gemäß einer bevorzugten Ausführungsform der Erfindung besitzt jeder Bewehrungsteil zwei etwa parallel gerichtete Annagelungsenden, die vorteilhafterweise geringfügig aufeinander zugewandt sein können, um so eine gewissen Verklammerung des Bewehrungsteiles am Knochen zu erzielen. According to a preferred embodiment of the invention, each reinforcement part has approximately two parallel nailing ends, which advantageously can be slightly facing each other, in order to achieve a certain clamping of the reinforcement part on the bone.
Nach einem weiteren Merkmal der Erfindung ist das Bewehrungsteil in seinem flächigen Bereich mit Durchbrüchen versehen ufid sind ihm in die Durchbrüche einsetzbare Quer-bewehrungsteile, z. B. Schraubenfedern, zugeordnet, mit denen mehrere am Knochen angeschlagene flächige Bewehrungsteile zu einem Bewehrungsnetzwerk ergänzt werden können, wodurch eine besonders effektvolle Armierung des zementösen Knochenansatzes erreicht wird.According to a further feature of the invention, the reinforcement part is with in its flat area Breakthroughs provided ufid him in the breakthroughs usable cross reinforcement parts, e.g. B. Coil springs, assigned with which several on the bone attached flat reinforcement parts can be added to a reinforcement network, whereby a particularly effective reinforcement of the cementitious bone attachment is achieved.
Die Erfindung bietet den besonderen Vorteil, daß für ein bestimmtes zu behandelndes Gelenk Bewehrungsteile nur in einer oder höchstens in sehr wenigen Größenabmessungen benötigt werden, da im Einzelfall die genaue, individuelle Ausfüllung des Knochendefektraumes durch entsprechende Modellierung des Knochenzementes erreichbar ist. Darüber hinaus ist das Annageln der Bewehrungsteile, das Einsetzen der Quer-Bewehrungsteile, z. B. der Schraubenfedern, und das Verfüllen und Modellieren des Knochenzementes rasch ausführbar, wobei einheitliche Pfannendächer zur Aufnahme der weitgehend genormten Kunstschalen geschaffen werden.The invention offers the particular advantage that reinforcement parts for a particular joint to be treated are only required in one or at most in a very few size dimensions, as in individual cases the exact, individual filling of the bone defect space through appropriate modeling of the bone cement is attainable. In addition, the nailing of the reinforcement parts, the insertion of the Cross reinforcement parts, e.g. B. the coil springs, and the filling and modeling of the bone cement Can be implemented quickly, with uniform pan roofs to accommodate the largely standardized artificial bowls be created.
Weitere Merkmale der Erfindung sind in den Unteransprüchen und in der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispieles angegeben. In der Zeichnung zeigtFurther features of the invention are set out in the subclaims and in the following description a preferred embodiment specified. In the drawing shows
Fig. 1 in Seitenansicht ein als Hüftgelenk-Pfannendachanker -ausgebildetes Bewehrungsteil nach der Erfindung,Fig. 1 in side view of a hip joint socket roof anchor - trained reinforcement part according to the invention,
F i g. 2 das Bewehrungsteil nach F i g. 1 von links gesehen,F i g. 2 the reinforcement part according to FIG. 1 seen from the left,
F i g. 3 vier nebeneinander angeordnete Bewehrungsteile nach F i g. 1, welche über eingesetzte schraubenförmige Quer-Bewehrungsteile miteinander verbunden sind, undF i g. 3 four reinforcement parts arranged next to one another according to F i g. 1, which is inserted via helical Transverse reinforcement members are interconnected, and
Fig.4 in einem Vertikalschnitt einen Hüftknochen mit implantierter Kunstschale, die durch einen zementösen, durch Bewehrungsteile nach den F i g. 1 bis 3 armierten Knochenansatz unterstützt ist.4 shows a hip bone in a vertical section with implanted artificial shell, which is secured by a cementitious, reinforced by parts according to the F i g. 1 to 3 reinforced bone base is supported.
Das gezeigte Bewehrungsteil besitzt die Form eines hochkantstehend an den unterstützenden Knochen 1 annagelbaren, flächigen Metallkörpers 2, der mit zwei Annagelungsenden 3, 4 versehen ist. Die Annagelungb enden 3,4 sind nicht völlig parallel ausgerichtet, sondern etwa aufeinander zugeneigt, so daß eine gewisse Anklammerung beim Annageln am Knochen 1 erzielt wird. Die Bewehrungsteile werden, wie in F i g. 3 schematisch — allerdings mit vergrößertem Abstand — gezeigt, an der Defektseite 5 des Knochens 1 angenagelt, wonach in ihre Durchbrüche 6, 7, 8 Quer-Bewehrungsteile 9, z. B. Schraubenfedern, eingesetzt werden. Anschließend wird der Knochendefektraum mit Knochenzement 10 ausgefüllt und damit das Pfannendach für die ir den Hüftknochen 1 einzusetzen-The reinforcement part shown has the shape of an upright on the supporting bone 1 nailable, flat metal body 2 which is provided with two nailing ends 3, 4. The Annagelungb ends 3, 4 are not aligned completely parallel, but rather inclined towards each other, so that a certain Clamping when nailing to the bone 1 is achieved. The reinforcement parts are, as in F i g. 3 shown schematically - albeit with an enlarged distance - on the defect side 5 of the bone 1 nailed, after which in their openings 6, 7, 8 transverse reinforcement parts 9, z. B. coil springs are used will. The bone defect space is then filled with bone cement 10 and thus the To insert the acetabular roof for the hipbones 1
de Kunstgelenkschaie 11 verbreitert.de artificial joint bracket 11 widened.
Bei dem gezeigten, als Hüftgelenk- Pfannendachanker ausgebildeten Bewehrungsteil besitzt der Metallkörper 2 einen mit einem konkav kreisbogenförmigen Rand 12 versehenen Stützabschnitt 13. Der Radius dej kreisbogenförmigen Randes 12 ist dem Außendurchmesser der Kunstschale 11 angepaßt An der dem kreisbogenförmigun Rand 12 gegenüberliegenden Seite trägt der Stützabschnitt 13 das verhältnismäßig kurz ausgebildet"» Annagelungsende 3, das in einer gegenüber der Materialstärke des Stützabschnittes 13 verbreiterten Schneide 14 ausläuft. An den anderen Endbereich des Stützabschnitles 13 schließt sich rückwärtig ein mit den Durchbrächen 6, 7,8 versehener Abschnitt 14 an, der in das Annagelungsende 4 ausläuft, das ebenfalls als Schneide 15 ausgebildet ist. Die Materialstärke nimmt beim Abschnitt 14 vom Annagelungsende 4 zum gegenüberliegenden Stützabschnitt 13 hin zu.In the case of the reinforcement part shown, designed as a hip joint socket roof anchor, the metal body has 2 a support section 13 provided with a concave circular-arc-shaped edge 12. The radius dej circular-arc-shaped Edge 12 is adapted to the outer diameter of the artificial bowl 11 at the circular arc shape Edge 12 on the opposite side carries the support section 13, which is relatively short "» Annagelungsende 3, which widened in relation to the material thickness of the support section 13 Cutting edge 14 runs out. At the other end of the support section 13 closes at the rear with the Breakthroughs 6, 7,8 provided section 14 which expires in the nailing end 4, which is also called Cutting edge 15 is formed. The material thickness increases at section 14 from the nailing end 4 to opposite support section 13 towards.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762621667 DE2621667C2 (en) | 1976-05-15 | 1976-05-15 | Reinforcement part for cementitious bone fillings or attachments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762621667 DE2621667C2 (en) | 1976-05-15 | 1976-05-15 | Reinforcement part for cementitious bone fillings or attachments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2621667B1 DE2621667B1 (en) | 1977-11-03 |
| DE2621667C2 true DE2621667C2 (en) | 1978-06-22 |
Family
ID=5978060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762621667 Expired DE2621667C2 (en) | 1976-05-15 | 1976-05-15 | Reinforcement part for cementitious bone fillings or attachments |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2621667C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8002998A (en) * | 1980-05-23 | 1981-12-16 | Ir Jan Willem Smit | ORTHOPEDIC COUPLING BODY. |
| FR2578162A1 (en) * | 1985-03-04 | 1986-09-05 | Rambert Andre | Cup for total prosthesis of the hip or of the shoulder |
-
1976
- 1976-05-15 DE DE19762621667 patent/DE2621667C2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2621667B1 (en) | 1977-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8327 | Change in the person/name/address of the patent owner |
Owner name: ROTTHAEUSER, ROSWITHA, 5609 HUECKESWAGEN, DE LYSEL |
|
| 8339 | Ceased/non-payment of the annual fee |