DE9000161U1 - Dynamic trochanteric flap (DTL) for stabilization of comminuted fractures in the proximal femur region - Google Patents
Dynamic trochanteric flap (DTL) for stabilization of comminuted fractures in the proximal femur regionInfo
- Publication number
- DE9000161U1 DE9000161U1 DE9000161U DE9000161U DE9000161U1 DE 9000161 U1 DE9000161 U1 DE 9000161U1 DE 9000161 U DE9000161 U DE 9000161U DE 9000161 U DE9000161 U DE 9000161U DE 9000161 U1 DE9000161 U1 DE 9000161U1
- Authority
- DE
- Germany
- Prior art keywords
- dynamic
- flap
- dtl
- trochanteric
- plate extension
- 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 - Lifetime
Links
- 208000024779 Comminuted Fractures Diseases 0.000 title claims 2
- 210000000689 upper leg Anatomy 0.000 title claims 2
- 230000006641 stabilisation Effects 0.000 title description 2
- 238000011105 stabilization Methods 0.000 title description 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 210000001694 thigh bone Anatomy 0.000 claims 1
- 208000010392 Bone Fractures Diseases 0.000 description 9
- 206010017076 Fracture Diseases 0.000 description 8
- 239000012634 fragment Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 2
- 208000008924 Femoral Fractures Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 210000000527 greater trochanter Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000025712 muscle attachment Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000003314 quadriceps muscle Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001356 surgical procedure Methods 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/746—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to a plate opposite the femoral head
-
- 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
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
t « ■ &igr; . 'Illt « ■ &igr; . 'Ill
• · · . 1 I IJt• · · . 1 I IJt
Die operative Versorgung von sub- und pertrochanteren Oberschenkeltrünmerfrakturen weist überwiegend Probleme in der eigentlichen Stabilisierung der Fraktur auf, da mit den zur Verfügung stehenden Mitteln bisher nur eine unzureichende Fixation der Fragmente auf grund der Material- und Konstruktionseigenschaften erzielt wurde. The surgical treatment of sub- and pertrochanteric femoral fractures predominantly presents problems in the actual stabilization of the fracture, since the means available have so far only achieved inadequate fixation of the fragments due to the material and construction properties.
Es kam dabei zu Verbiegungen der Stützplattsn unter Belastung «xier die Frakturfragmente rutschten wegen fehlender Abstützung nach lateral ab, so daß eine Gangbiidverschleciiiejruüa &uacgr;&udigr;&ohacgr; Beinv^rkürzun^r sowie länge Liegedauer resultierte. Andererseits kommt es bei einer Konstruktion durch zu geringe Dynamisisrungswege u.U. zu Hüftkopf per t^ationen durch einen festen Bolzen.This resulted in the support plates bending under load and the fracture fragments slipping laterally due to a lack of support, resulting in a deterioration in gait, shortening of the leg and a longer period of inpatient treatment. On the other hand, in a construction with insufficient dynamization paths, the femoral head may be perturbed by a fixed bolt.
Bei tfi;T3 o.g. Frakturtyp ii^üde?.* es sicii .um die in Deutschend am häu£_^sten operativ behandelte Knoch^nbruchform.In der Regel tritt dieser Knocheabruch meisv als Trü erfraktur auf und «irU damit zur "^oblemfiaktar.T3 fracture type ii^üde?* is the type of bone fracture most frequently treated surgically in Germany. As a rule , this type of bone fracture occurs as a transverse fracture and therefore leads to a disability.
Der meist alte Patient kann in der *~~cope\ Ati'^n Phase üblicherweise nur unter Vollbelastung mobilisiert werden, da auf Grund seines häufig verminderten geistigen Leistungsvermögens und der geringeren Korperkraft eine Teilbelastung zur Schonung der Osteosynthese nicht röglich ist.The mostly elderly patient can usually only be mobilized under full weight bearing in the *~~cope\ Ati'^n phase, since due to his often reduced mental capacity and lower physical strength, partial weight bearing is not possible in order to protect the osteosynthesis.
Gerade aber die frühe Mobilisation des Patienten ist eine wesentliche Voraussetzung für die Genesung.However, early mobilization of the patient is an essential prerequisite for recovery.
AufgabeTask
angegebenen Entwicklung liegt die Aufgabe zugrunde, eine einfache, stabile, sichere und schnell anwendbare Osteosynthese konstruktion zu schaffen, um die o.g. Nachteile zu vermeiden. Die Konstruktion soll kompatibel zu bestehenden Tragschrauben und Knochenfixationsschrauben sein.The aim of the development is to create a simple, stable, safe and quickly applicable osteosynthesis construction in order to avoid the above-mentioned disadvantages. The construction should be compatible with existing support screws and bone fixation screws.
VorteileAdvantages
Durch die andedeutete Herzform des Oberteils kann die Lasche leicht unter den Ansatz des Musculus vastus lateralis am Trochanter major geschoben werden, der Muskelansatz braucht nicht wie bei anderen Konstruktionen abgelöst zu werden. Ober die runden Bohrungen der oberen Abstützplatte können Spongiosaochrauben zur zusätzlichen Fragmentfixierung und Rotationsverhinderung des Kopf-Halsfragmentes eingebracht werden.Due to the suggested heart shape of the upper part, the tab can be easily pushed under the attachment of the vastus lateralis muscle on the trochanter major; the muscle attachment does not need to be detached as with other constructions. Spongiosa screws can be inserted via the round holes in the upper support plate for additional fragment fixation and prevention of rotation of the head and neck fragment.
Der Winkel zwischen Lasche und Tragschraubenhülse wird in drei Ausführungen gefertigt (135, 140 und 145 Grad). Hierdurch wird der Bandbreite der anatomisch vorgegebenen Winkel ausreichend Rechnung getragen.The angle between the tab and the support screw sleeve is manufactured in three versions (135, 140 and 145 degrees). This sufficiently takes into account the range of anatomically specified angles.
Ober eine im Kopf - Halsfragment eingebrachte Tragschraube wird die Dynamisierung der Frakturfragmente via Tragschraubenhülse erreicht. Die Trochanter - Fragmente werden durch die obere Abstützplatts gehalten und vor dem Abrutschen bewahrt. Daraus resultiert einerseits eine zur Frakturheilung erforderliche Kompression dar Fragmente und ein" weitgehend anatomische Fraktursteilung.The dynamization of the fracture fragments is achieved via a support screw sleeve inserted into the head and neck fragment. The trochanter fragments are held by the upper support plate and prevented from slipping. This results in compression of the fragments, which is necessary for fracture healing, and a largely anatomical fracture division.
Weiterbildungen der Entwicklung zu den Ansprüchen 1 bis 3Further development of claims 1 to 3
Die Plattenverlängerung zur Fixation am Oberschenkelschuft ist mit vier bzw. sechs oder acht versetzten ovalen sog. selbstkomprimierenden Schraubenlöchern versehen, so daß im Einzelfall auch tiefer gelegene und bis in den mittleren Femurschaft reichende Frakturen damit versorgt werden können.The plate extension for fixation to the femoral shaft is provided with four, six or eight offset oval so-called self-compressing screw holes, so that in individual cases even deeper fractures extending into the middle femoral shaft can be treated with it.
Ein Ausführungsbeispiel der Entwicklung gibt die Abb. 1 wieder. Fig. 1 zeigt die Frontansicht der Dynamischen Trochanter - Lasche, Fig. 2 die Seitenansicht der Dynamischen Trochanter - Lasche.An example of the development is shown in Fig. 1. Fig. 1 shows the front view of the dynamic trochanter flap, Fig. 2 shows the side view of the dynamic trochanter flap.
In Fig. 1 und Fig. 2 sind mit 1 die Rundlöcher zur Aufnahme der Spongiosaschrauben bezeichnet.In Fig. 1 and Fig. 2, 1 indicates the round holes for the cancellous bone screws.
In Fig. 1 sind mit 3 die Schraubenlöcher zur Fixation der Lasche am Femurschaft bezeichnet.In Fig. 1, the screw holes for fixing the tab to the femoral shaft are marked with 3.
In Fig. 1 uird Fig. 2 ist mit 4 die obere Abstützplatte und mit 5 die Plattenverlängerung bezeichnet, beides ergibt den Begriff der Lasche.In Fig. 1 and Fig. 2, 4 denotes the upper support plate and 5 the plate extension, both of which give rise to the term tab.
Gebrauchsmusterantrag ..''..■'■ '{feite·-· 3Utility model application ..''..■'■ '{feite·-· 3
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9000161U DE9000161U1 (en) | 1990-01-09 | 1990-01-09 | Dynamic trochanteric flap (DTL) for stabilization of comminuted fractures in the proximal femur region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9000161U DE9000161U1 (en) | 1990-01-09 | 1990-01-09 | Dynamic trochanteric flap (DTL) for stabilization of comminuted fractures in the proximal femur region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9000161U1 true DE9000161U1 (en) | 1990-03-01 |
Family
ID=6849875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9000161U Expired - Lifetime DE9000161U1 (en) | 1990-01-09 | 1990-01-09 | Dynamic trochanteric flap (DTL) for stabilization of comminuted fractures in the proximal femur region |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9000161U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005027764A1 (en) * | 2003-09-23 | 2005-03-31 | Instituto Tecnologico De Canarias, S.A. (Itc) | Fixing device for hip osteotomies and fractures in children and adolescents |
| US8888824B2 (en) | 2005-07-25 | 2014-11-18 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US11896270B2 (en) | 2005-07-25 | 2024-02-13 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
-
1990
- 1990-01-09 DE DE9000161U patent/DE9000161U1/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005027764A1 (en) * | 2003-09-23 | 2005-03-31 | Instituto Tecnologico De Canarias, S.A. (Itc) | Fixing device for hip osteotomies and fractures in children and adolescents |
| ES2228273A1 (en) * | 2003-09-23 | 2005-04-01 | Enrique Instituto Tecnologico De Canarias, S.A. | Fixing device for hip osteotomies and fractures in children and adolescents |
| US8888824B2 (en) | 2005-07-25 | 2014-11-18 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US9795424B2 (en) | 2005-07-25 | 2017-10-24 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US10092337B2 (en) | 2005-07-25 | 2018-10-09 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US10292741B2 (en) | 2005-07-25 | 2019-05-21 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US10327822B2 (en) | 2005-07-25 | 2019-06-25 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US10736680B2 (en) | 2005-07-25 | 2020-08-11 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US11896270B2 (en) | 2005-07-25 | 2024-02-13 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
| US12343053B2 (en) | 2005-07-25 | 2025-07-01 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
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