CN101574280A - Fixing system in locking plate at proximal end of thighbone - Google Patents
Fixing system in locking plate at proximal end of thighbone Download PDFInfo
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- CN101574280A CN101574280A CNA2009100158758A CN200910015875A CN101574280A CN 101574280 A CN101574280 A CN 101574280A CN A2009100158758 A CNA2009100158758 A CN A2009100158758A CN 200910015875 A CN200910015875 A CN 200910015875A CN 101574280 A CN101574280 A CN 101574280A
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Abstract
The invention provides a fixing system in a locking plate at the proximal end of a thighbone, and belongs to the technical field of medical appliances. The fixing system structurally comprises the locking plate and a locking screw, the upper end edge of the locking plate is provided with a suture hole, a tuberositas hook is fixed on the suture hole through a fixing ring, the upper part of the locking plate is provided with a thighbone neck locking nail hole, the nail hole is fixed with a thighbone neck locking nail through screw thread, a hollow pressurizing screw hole is formed between the thighbone neck locking nail holes, the hollow pressurizing screw hole is provided with a hollow pressurizing screw, one side of the upper part of the locking plate is provided with a protruding block which is provided with a pressurizing screw hole, the lower half part of the locking plate is provided with a pressurizing screw hole and a locking screw hole which are provided with a pressurizing screw and a locking screw, and the locking plate is also provided with a temporary fixing hole. The novel fixing system in the locking plate at the proximal end of the thighbone has the characteristics of reasonable design, simple operation and the like, has the function of glidingly pressurizing the bone end, and is favorable for the rehabilitation of a thighbone fracture part of a patient.
Description
Technical field
The present invention relates to technical field of medical instruments, a kind of specifically fixing system in locking plate at proximal end of thighbone.
Background technology
Near end of thighbone comprises the rotor of femoral head, neck of femur and femur.When being subjected to rotating external force indirectly, this position causes the fracture at neck of femur and rotor position easily, this situation is more to appear at the old people, simultaneously, this position also is the predilection site of many primary bone tumors and the pilosity district of Secondary cases metastatic carcinoma, when this position sclerotin is subjected to tumor invading, easily produce pathologisch Bruch.Along with aged tendency of population, incidence rate is global increase trend.Traditional remedies is that the bed row is suffered from the limb index, but patient's hospital stays is long, and complication rate and mortality rate are higher, and coxa vara, outward turning shortened deformity or knee stiffness mostly occur after the healing.Therefore, more in recent years doctors advocate the early stage internal fixation treatment of row.Existing internal fixation method mainly contains: plate pin structure (angle lock plate, pressurization hip screw), marrow internal fixation system (gamma nail, PFN, PFNA, short weight build etc.), spininess internal fixation, compression hollow screw, exterior fixation bracket.Therapeutic Method is a lot, and pluses and minuses are respectively arranged.
1, slip compression goose head shaped nail: the slip compression goose head shaped nail is firm in structure, and has pressurization and slip dual-use function.The far-end locking plate is attached to lateral side of femur cortex, the tension band effect is arranged, mechanical strength is big, can obviously increase general stability, the displacement of fracture face is few, but early functional exercise is applicable to various intertrochanteric fracture, since the seventies, the dynamic hip screw system is " goldstandard " of fixed rotor surrounding fracture always.But slip compression goose head shaped nail apparatus is a corollary apparatus, and the technical operation relative complex is when serious as if the fracture pulverizing, its anti-rotation performance is poor, especially comparatively loose for senile patient's sclerotin, nail, broken nail, lockplate fracture or screw cutting femoral head neck phenomenon often appear moving back, cause the coxa vara deformity.Can not use with damaged patient the femoral intertrochanteric tumor.
2, hip screw system in the marrow: gamma (Gamma) nail and PFN (PFN) are used for the treatment of fractured near end of thighbone in recent years as the head intramedullary nail system, because it is to be developed in conjunction with the intramedullary pin technology by the slip hip screw, main nail is positioned at the femoral shaft pulp cavity, eccentric the fixing of the hip screw (DHS) that pressurizes can be born bigger stress, especially bending stress, can reduce the probability of internal fixation fracture, provide bigger stability fracture end.But this nail only is suitable for not involving fracture under the trochiterian lesser trochanter, and the operation technique complexity, and easy concurrent Fracture of femur is unsuitable for the too thin patient of elderly patient and pulp cavity.The capital pressurization screw thread of serious osteoporotic gerontal patient can not be brought into play pressurization and cut femoral head again easily and pass outside the femoral head.
3, prosthetic replacement: old fractured near end of thighbone carries out artificial joint replacement, though obtained clinical effectiveness preferably, has the surgery cost height, damages big defective.
4, spininess internal fixation: adopt the method for spininess internal fixation, its characteristics mainly contain that wound is more little, simple to operate, indication is wide.Single draw point internal fixation of using, gravity causes the downward shearing of femoral head and reaches greater trochanter through draw point, fracture end, because the greater trochanter place is a spongy bone, hold to draw point is not strong, when joint motion, fracture end fine motion, easily cause loosening, the displacement fracture of draw point, talipes varus in the hip joint takes place, even fracture delayed union, disunion, draw point may enter pelvic cavity damage pelvic cavity viscera or outwards withdraw from simultaneously.
5, hollow forcing screw: the hollow forcing screw internal fixation of titanium system, become at present the prefered method of treatment fracture of femoral neck in the world, its advantage is that effective pressurization of fracture end and the screw structural strength that triangle distributes in neck of femur has higher anti-shearing, counter-bending, torsional rotation force.Blood to neck of femur is transported, the influence of surrounding bone structure is less relatively.In addition, the hollow structure of screw helps avoiding the bone inner high voltage, alleviating pain, increase knitting.Be applicable to sclerotin better, substrate and through neck type fracture patient.But for intertrochanteric fracture because greater trochanter outside relative narrower, the hold of nail tailing screw flight a little less than, and almost there is not the shearing resistance effect, mechanical strength is low, and being prone to fracture site separation, displacement fracture, coxa vara, postoperative need brake, and has lost the chance of early functional exercise.
6, exterior fixation bracket: the exterior fixation bracket mechanical strength is low, and displacement fracture easily takes place, and daily life is had some harmful effects, as the inconvenience of wearing the clothes, have a bath, and complication such as pin site infection, pin be loosening easily take place.
7, angle lock plate: 135 °, 90 ° angle lock plates are that AO school at first advocates usefulness, and its characteristics are an overall structure for its nail sword, and its torsional rotation force is better, and its sword is that the easily anti-folding of U type profile is trigonometric ratio and fixes simultaneously, can increase its intensity and stability.At present, the AO internal fixation handbook of new edition is still recommended to use.But angle lock plate intensity is relatively low, and the fracture end pressurization is little, can not be used for some serious comminuted fracture.
8, near end of thighbone lockplate: recently the near end of thighbone lockplate is applied to clinically gradually, and it has following advantage: 1. lockplate need be close to bone surface, needn't be too much in the art moulding, make things convenient for operation technique; 2. can not pull to lockplate to the bone piece when being screwed into locking nail, influence resets; 3. lockplate has been protected the blood confession of sclerite not to the surface of bone build-up of pressure, meets BO biological fixation principle, has reduced peeling off of periosteum, has kept the blood confession of fracture end to greatest extent, has reduced operation wound, the healing that helps fracturing.But lockplate has also lost the slide effect of pressurization of epiphysis in locking, and stress concentrates too much on the locking nail root, and big or small trochanteric fracture is lacked the fixing means that effectively resets.
Because the particularity of fractured near end of thighbone on Pathophysiology and biomechanics, make its treatment become a difficult problem of orthopaedics and tranmstology always, the nonunion of fracture of femoral neck, internal fixation is loosening, Avascular Necrosis Of Femur Head is still ubiquitous complication, so far fail in the treatment breakthrough, the defective that endogenous cause of ill is decided in the equipment design is one of chief reason.Bone trabecula comprises major and minor pressure and tension force bone trabecula in the neck of femur, constitute the most rational truss structure on the mechanics, biomechanics Research is thought, ideal internal fixation apparatus should make full use of this structure, reach and reduce the influence of harmful stress, particularly shearing force after the fracture of femoral neck, twisting resistance union of fracture.
Summary of the invention
Technical assignment of the present invention is to solve the deficiencies in the prior art, and a kind of fixing system in locking plate at proximal end of thighbone of easy to use, fixation is provided.
Technical scheme of the present invention realizes in the following manner, this fixing system in locking plate at proximal end of thighbone, its structure comprises lockplate, lock screw, the lockplate upper end-face edge has sewing hole, the tuberosity hook is fixed on the sewing hole by retainer ring, lockplate top has neck of femur locking nail hole, the nail hole is fixed with the neck of femur locking nail by screw thread, have hollow forcing screw hole between the neck of femur locking nail hole, hollow forcing screw is housed, lockplate top one side is provided with a projecting block, have the forcing screw hole on this projecting block, the lockplate Lower Half has forcing screw hole and screw hole, and forcing screw and lock screw are housed, and also has temporary fixed hole on the lockplate.
The retainer ring of this fixing system in locking plate at proximal end of thighbone is steel wire or wirerope; Sewing hole is provided with 1-10; Neck of femur locking nail hole is provided with 3-5; Neck of femur locking ailing body does not have stricture of vagina, hollow, the ailhead indentation, and nail tail place is provided with external screw thread; The angle that forms between neck of femur locking nail and hollow forcing screw locking back and the lockplate plate face is the 5-15 degree, and the elevation angle angle of formation is the 40-50 degree; The angle that projecting block and lockplate edge form is the 20-40 degree; Curved and the formation 10-30 degree elevation angle of the lockplate first half; The lockplate lower end is sharp keen triangular ramp shape; Screw hole and pressurization fixing screw hole are formed the screw assemblies hole, and the screw assemblies hole is provided with the 1-10 group.
The beneficial effect that the present invention is compared with prior art produced is:
The tuberosity hook that this fixing system in locking plate at proximal end of thighbone connects is used convenient, can select for use according to the sclerotin situation of greater trochanter, tuberosity hook and steel plate is connected as a single entity through sewing hole with stone dead wire or wirerope, has greatly strengthened stability in the large; Be provided with tilting neck of femur locking nail, have tangible dispersive stress effect, prevent of the cutting of screw stress concentration the femur head and neck, the anterior no screw thread of neck of femur locking nail, muscle contraction and longitudinal stress have the slip pressurization to epiphysis, promote union of fracture; Hollow forcing screw has initiatively pressurization to epiphysis; Plate body is provided with the pin assembly hole of lock screw and forcing screw, and the application of pressure screw can make plate body press close to femur, prevents coxa vara, and locking nail makes fracture fixation in locking bit, makes one up and down; The plate body edge is provided with sewing hole and temporary fixed hole, can fix through this hole bondage for pulverizing serious bone piece.This fixed system all has a good fixed support effect to the near end of thighbone sclerotin, makes near-end sclerotin one integrated mass.
Description of drawings
Accompanying drawing 1 is the structural representation of the lockplate of most preferred embodiment of the present invention;
Accompanying drawing 2 is structural representations of most preferred embodiment of the present invention.
Labelling in the accompanying drawing is represented respectively:
1, tuberosity hook, 2, retainer ring, 3, hollow forcing screw hole, 4, the forcing screw hole, 5, lockplate, 6, screw hole, 7, temporary fixed hole, 8, neck of femur locking nail hole, 9, sewing hole, 10, neck of femur locking nail, 11, hollow forcing screw, 12, forcing screw, 13, lock screw.
The specific embodiment
Below in conjunction with accompanying drawing fixing system in locking plate at proximal end of thighbone of the present invention is done following detailed description the in detail.
As accompanying drawing 1, shown in Figure 2, this fixing system in locking plate at proximal end of thighbone, its structure comprises lockplate 5, lock screw 13, lockplate 5 upper end-face edges have 5 sewing holes 9; Tuberosity hook 1 is fixed on the sewing hole 9 by retainer ring 2, retainer ring 2 is steel wire or wirerope, lockplate 5 tops have 3 neck of femur locking nail holes 8, these 3 neck of femur locking nail holes 8 are " product " font arranges, and the nail hole is fixed with neck of femur locking nail 10 by screw thread, and neck of femur locking nail 10 nail bodies do not have stricture of vagina, hollow, the ailhead indentation, nail tail place is provided with external screw thread, but self tapping insert, minimum to bone destruction; 38 in neck of femur locking nail holes have a hollow forcing screw hole 3, and hollow forcing screw 11 is housed, to the pressurization that can reset of neck of femur and intertrochanteric fracture; The angle that forms between neck of femur locking nail 10 and hollow forcing screw 11 fixing backs and the lockplate plate face is 10 degree, and the elevation angle angle of formation is 45 degree, in dispersive stress, also has epiphysis slip pressurization; Lockplate 5 tops one side is provided with a projecting block, and this projecting block and lockplate 5 edges form 30 degree angles, have forcing screw hole 4 on the protrusion piece, because of this protrusion piece is relative with little tuberosity, so little tuberosity fracture can reset fixing through this hole; Lockplate 5 Lower Halves have forcing screw hole 4 and screw hole 6, and forcing screw 12 and lock screw 13 are housed, and screw hole 6 and pressurization fixing screw hole 4 are formed the screw assemblies hole, and the screw assemblies hole is provided with 4 groups; The first half of lockplate 5 is curved and form the 15 degree elevations angle with the plate body plane, and its lower end is sharp keen triangular ramp shape, is beneficial to and inserts the distally outside periosteum, also has temporary fixed hole 7 on the lockplate 5, is used for bondage and pulverizes serious bone piece.
Claims (10)
1, fixing system in locking plate at proximal end of thighbone, comprise lockplate, lock screw, it is characterized in that the lockplate upper end-face edge has sewing hole, the tuberosity hook is fixed on the sewing hole by retainer ring, lockplate top has neck of femur locking nail hole, the nail hole is fixed with the neck of femur locking nail by screw thread, have hollow forcing screw hole between the neck of femur locking nail hole, hollow forcing screw is housed, lockplate top one side is provided with a projecting block, has the forcing screw hole on this projecting block, and the lockplate Lower Half has forcing screw hole and screw hole, forcing screw and lock screw are housed, also have temporary fixed hole on the lockplate.
2, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that retainer ring is steel wire or wirerope.
3, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that sewing hole is provided with 1-10.
4, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that neck of femur locking nail hole is provided with 3-5.
5, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that neck of femur locking ailing body does not have stricture of vagina, hollow, the ailhead indentation, and nail tail place is provided with external screw thread.
6, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that the angle that forms between neck of femur locking nail and hollow forcing screw locking back and the lockplate plate face is the 5-15 degree, and the elevation angle angle of formation is the 40-50 degree.
7, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that the angle that projecting block and lockplate edge form is the 20-40 degree.
8, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that the lockplate first half is curved and forms the 10-30 degree elevation angle.
9, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that the lockplate lower end is sharp keen triangular ramp shape.
10, fixing system in locking plate at proximal end of thighbone according to claim 1 is characterized in that screw hole and pressurization fixing screw hole composition screw assemblies hole, and the screw assemblies hole is provided with the 1-10 group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100158758A CN101574280B (en) | 2009-06-05 | 2009-06-05 | Fixing system in locking plate at proximal end of thighbone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100158758A CN101574280B (en) | 2009-06-05 | 2009-06-05 | Fixing system in locking plate at proximal end of thighbone |
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| Publication Number | Publication Date |
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| CN101574280A true CN101574280A (en) | 2009-11-11 |
| CN101574280B CN101574280B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100158758A Expired - Fee Related CN101574280B (en) | 2009-06-05 | 2009-06-05 | Fixing system in locking plate at proximal end of thighbone |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947127A (en) * | 2010-10-25 | 2011-01-19 | 唐佩福 | Percutaneous ectotrochanter fixer for intertrochanteric fracture |
| CN103445886A (en) * | 2013-03-07 | 2013-12-18 | 刘礼初 | Biotype artificial hip joint surface replacement prostheses |
| CN103690234A (en) * | 2014-01-03 | 2014-04-02 | 苏州市康力骨科器械有限公司 | Proximal femur locking system |
| CN104939903A (en) * | 2014-03-25 | 2015-09-30 | 爱派司生技股份有限公司 | Femur fixing device |
| CN106821479A (en) * | 2017-01-20 | 2017-06-13 | 刘学进 | Fractured near end of thighbone improves intramedullary nail inner fixing device |
| CN106943188A (en) * | 2017-05-05 | 2017-07-14 | 邳州东大医院 | Fracture of greater tuberosity of humerus fixation device |
| CN106983552A (en) * | 2017-05-18 | 2017-07-28 | 长春圣博玛生物材料有限公司 | A kind of T words button arm microplate device |
| CN109805995A (en) * | 2019-04-11 | 2019-05-28 | 吴丹凯 | It is a kind of that fixed device is tied up based on proximal femoral nail system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367262Y (en) * | 1999-02-01 | 2000-03-08 | 广州市中医医院 | Thigh-bone small tuberosity resetting fixer |
| CN2472682Y (en) * | 2001-04-17 | 2002-01-23 | 上海市嘉定区南翔医院 | Internal fixer for femoral fracture |
| CN2783947Y (en) * | 2005-04-29 | 2006-05-31 | 张长青 | Locking board for bone fracture between tuberosity |
| CN101011290A (en) * | 2007-02-07 | 2007-08-08 | 李云峰 | Femoral bone tuberosity locking hook plate internal fixation system |
| CN201131788Y (en) * | 2007-12-28 | 2008-10-15 | 何登伟 | Internal fixer for intertrochanteric fracture |
-
2009
- 2009-06-05 CN CN2009100158758A patent/CN101574280B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947127A (en) * | 2010-10-25 | 2011-01-19 | 唐佩福 | Percutaneous ectotrochanter fixer for intertrochanteric fracture |
| CN103445886A (en) * | 2013-03-07 | 2013-12-18 | 刘礼初 | Biotype artificial hip joint surface replacement prostheses |
| CN103445886B (en) * | 2013-03-07 | 2016-01-06 | 刘礼初 | A kind of Biotype artificial hip joint superficial substitution prosthese |
| CN103690234A (en) * | 2014-01-03 | 2014-04-02 | 苏州市康力骨科器械有限公司 | Proximal femur locking system |
| CN104939903A (en) * | 2014-03-25 | 2015-09-30 | 爱派司生技股份有限公司 | Femur fixing device |
| CN106821479A (en) * | 2017-01-20 | 2017-06-13 | 刘学进 | Fractured near end of thighbone improves intramedullary nail inner fixing device |
| CN106821479B (en) * | 2017-01-20 | 2024-02-27 | 刘学进 | Intramedullary nail internal fixing device for proximal femur fracture improvement |
| CN106943188A (en) * | 2017-05-05 | 2017-07-14 | 邳州东大医院 | Fracture of greater tuberosity of humerus fixation device |
| CN106983552A (en) * | 2017-05-18 | 2017-07-28 | 长春圣博玛生物材料有限公司 | A kind of T words button arm microplate device |
| CN109805995A (en) * | 2019-04-11 | 2019-05-28 | 吴丹凯 | It is a kind of that fixed device is tied up based on proximal femoral nail system |
| CN109805995B (en) * | 2019-04-11 | 2024-01-26 | 吴丹凯 | Bundling and fixing device based on proximal femur intramedullary nail system |
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| Publication number | Publication date |
|---|---|
| CN101574280B (en) | 2012-01-25 |
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