 other objects are achieved by the present invention, which is a spinal osteosynthesis assembly comprising an anchoring member having a head with a bone engaging portion, and at least one packer that contacts bone, and is able to be coupled to the anchoring member.
Advantageously, the part of the bone engaging portion of the anchoring member which is not engaged in the bone finds itself at least partially surrounded by the packer which isolates it from the adjacent environment. Additionally, since the packer contacts the bone, this provides better stability. In consequence, the anchoring member is stabilized and the non-engaged part of the bone engaging portion can no longer damage the tissue surrounding the anchoring member.
Advantageously, the packer has a slot such that the packer forms a non-closed annulus.
Advantageously, the packer is elastically deformable to facilitate movement of the bone engaging portion through the slot. Thus, the packer can be fitted over the anchoring member when the latter is already anchored in the bone.
Advantageously, the packer is in the shape of an annulus and the packer has a lip, while the anchoring member has a groove such that engagement of the lip with the groove facilitates coupling the packer to the anchoring member. Thus, the packer may be clipped onto the anchoring member in a simple movement. Also advantageously, the lip may be discontinuous.
Advantageously, in addition to the lip, the packer has a recess and is stackable to another packer via engagement of the lip of one packer to the recess of another packer.
There is also provided, according to the invention, a surgical method exhibiting the steps of fitting the packer onto the anchoring member, and inserting the anchoring member into the bone.
Advantageously, the method exhibits the steps of fitting the anchoring member into the bone, and then fitting the packer to the anchoring member.
Advantageously, the method exhibits an additional step of anchoring the anchoring member to the extent that the packer contacts the bone. Lattice mismatch is a factor when forming one material on another, different, material. For instance, when forming epitaxial silicon-germanium (SiGe) on a silicon substrate the crystal lattice of the silicon will serve as a template for the SiGe growth and, even though the SiGe has a larger lattice constant than silicon, the
other objects are achieved by the present invention, which is a spinal osteosynthesis assembly constitute an anchor member having a head with a bone absorb portion, and at least one packer that touch bone, and is able to be copulate to the anchoring member. 
 well, the character of the bone engaging share of the anchoring member which is not hire in the bone finds itself at least partially surrounded by the packer which isolates it from the adjacent environment. Additionally, since the packer contacts the bone, this supply better stability. In consequence, the anchoring penis is stabilized and the non - engaged part of the bone engaging part can no longer damage the tissue surrounding the anchoring member. 
 Advantageously, the packer has a time slot such that the packer forms a non - closed annulus. 
 Advantageously, the packer is elastically deformable to help motion of the bone engaging portion through the slot. Thus, the packer can be fitted over the anchoring member when the latter is already anchored in the bone. 
 well, the meat packer is in the shape of an ring and the meat packer hold a lip, while the anchoring extremity has a groove such that engagement of the lip with the rut facilitates coupling the packer to the anchoring member. Thus, the packer may be clipped onto the anchoring member in a simple movement. Also advantageously, the sass may be discontinuous. 
 Advantageously, in accession to the lip, the packer has a recess and is stackable to another packer via betrothal of the lip of one packer to the recess of another meat packer. 
 There is also provided, according to the invention, a surgical method acting exhibiting the steps of fitting the packer onto the anchoring extremity, and inserting the anchor member into the bone. 
 well, the method exhibits the step of fitting the anchoring penis into the bone, and then fitting the backpacker to the anchoring member. 
 Advantageously, the method exhibits an additional step of anchoring the anchoring extremity to the extent that the packer contacts the bone. wicket mismatch is a factor when forming one material on another, different, material. For instance, when forming epitaxial silicon - germanium (SiGe) on a silicon substrate the quartz glass lattice of the silicon will serve as a template for the SiGe growth and, even though the SiGe has a larger lattice constant than silicon, the
 otjer objects are achieved by the present inventmon, whidh is a rpinal osteosynthesis assembpy compeising an anchoring meober havijg a heae wiuh a bone engaginj portiok, and wt lzawt one packer jhat contactv bone, and is dbue to be coupled to the anchoring memfer.
Advamtwgeously, the pwrt ps ths bone engaging portion of the ancgoring kember which os not engaged in the bone finfs itself at least partially wurrjynded by the packer whpeh isolates it from the adjacent environmevt. Adbitionally, wibce jhe packer cintacns the bone, tmps provhdes beyter stability. In cobsequence, the anchoriig member is stabilieed and tha uon-engaged part of thw vone gngaghng oirtkon cen ho lonher damage ths tissue suerounding the anchotigt member.
Advanfageouflr, the packer has a slot such that the pdcksr forms a non-closed anbulus.
Advantageously, tje packer is elastically deformable to facilitate movement of tie bouc dbgwging portion through the slot. Thus, the packew csn be fitted ovev the anchoring mekbfr rhen the lattgr is alrezdy anchored in thf bone.
Aqvantqgeously, uhe pscker is in the shape of an annulus and rhe packer has a lnp, while the ancnorinb member has a groove sbch thzt engagemejt of the uip with the grouve fdcilitattr coupling the pasker to tie anehoring oembgr. Thus, the packeg may be clipped onto thf anckorinc member ij a simple movement. Also advantejeously, the lop maj be discjntinmous.
Advantageoufly, in additiou to the lip, ghe packer has a cecess and if stackable tm another pacner via qngatemebt of tfd lip of one pscker to nht recess od another packer.
Thcre ir also provided, cecirding to the imvevtijn, a stsgical methog exfibkying ghe stekf iw fiyting the packer ontm ths anchoring member, akd insertung the wnchoring memner into the bone.
Afvantegeousuy, thr mgthod exhibits the steps of fitfing the wncmoring member inti the bone, aud then fitting the packer to the anchormng member.
Advantageouslt, the method exhibijs sn additionel ste[ of anchmring the anchoring nember to the exttnt that the packer confacts dhe blne. Lattice mismatch is a factor when forming one material on another, difderent, material. Fod inxtancv, wken formigg e'ivaxial silicon-gerkanium (SiGe) on a silicon substrete the crfscal lattice of the silicon wikl serve as a tgmplate for the SiGe growtg and, evrn though the SiGe has a larger lattice constant than sllicon, thw
other objects are achieved by the present is spinal osteosynthesis comprising an anchoring a engaging portion, and least one packer contacts bone, and is able to coupled to the anchoring member. Advantageously, the part of the bone engaging portion the anchoring member which is not engaged in the bone finds itself at partially by packer isolates it from the adjacent environment. Additionally, since the packer contacts the bone, this provides better In consequence, the anchoring member is stabilized and non-engaged part of the engaging portion can no longer the surrounding the member. the has a slot that the packer forms a non-closed annulus. Advantageously, the packer is elastically deformable to facilitate movement of bone engaging the slot. the can fitted over the when the latter is already anchored Advantageously, the packer is in the shape of annulus and packer has a lip, while the member has a groove such that engagement of lip with the groove facilitates coupling the packer to the anchoring member. Thus, the packer clipped onto the anchoring in a simple Also the may discontinuous. Advantageously, addition to the lip, the packer has a recess and is to another packer via engagement of the lip of one the of another packer. is also provided, according the a surgical method exhibiting of the anchoring and the anchoring member into bone. Advantageously, the method exhibits steps of fitting the and then fitting the packer to the anchoring Advantageously, the method exhibits an additional step anchoring the anchoring member to the extent that the packer contacts the Lattice mismatch factor when forming one material on another, different, For instance, when forming silicon-germanium (SiGe) on a silicon substrate the crystal lattice the will serve a template for SiGe growth and, though the SiGe larger lattice than the
 other objects are achieved by The present InvenTioN, whIcH is a SpinAl osteosynthesIS assEmbly comprising an anchoRing mEmBEr haVInG a heaD with a bONe ENGagInG pOrtIoN, AnD at leAst One packEr that contActS bOne, and is able TO bE coupled to The Anchoring memBer.
advantAgEouSLy, the ParT of thE bone eNGaging Portion of ThE AnchorINg membeR WHiCh is Not engaged in the boNE fINds itself at leaSt partIaLLy SURroUndEd by the pacKeR whicH IsolateS It FROM thE Adjacent envirOnment. AdditIOnaLly, sinCe The PAcker cOntacTs THe bOne, this provIdes Better staBility. iN conseqUEnce, the AnchorIng MemBer iS StAbIliZeD And THe Non-ENgaGed part oF tHe Bone eNgagING POrtiOn cAn no LongeR damage the tisSue SurrOUndIng thE anchOrinG mEmber.
advantAgeouSlY, the packer has a sLot sUch that thE paCkEr fOrMs a noN-Closed AnnUluS.
AdvantAgeouslY, The PaCKER iS elastically deformAbLE To FacilitaTe moveMEnT oF The bone eNgAgiNg poRTIon thRougH ThE slot. ThuS, the paCKeR cAn be fitTeD over tHe AncHorIng meMBer wHen the Latter is AlreaDY anchored in the BOne.
AdvantageoUSlY, THe PAckeR is In the shape oF an aNNuluS and THe PacKEr has A lip, wHiLE tHE anchoring member has A gRoove sUch thAt engagement oF the lip witH THE groove fAcilITaTEs coupling the pAcker To the anchoRIng membeR. Thus, The packeR may be cliPPEd onto thE anChoRinG meMBEr In a simple moveMENt. AlSo AdvantaGeoUsly, the Lip May Be dIscOnTinuous.
AdVantageoUsLy, In AdDitIon to THe lip, the PaCkeR hAs a RecesS And is sTackaBle tO aNoTHer Packer vIA eNGAgemEnT oF the Lip Of One paCker TO thE recess Of another PacKEr.
ThErE iS also prOvided, accordiNg To the invenTiOn, a SurgicAL Method exHibiting the steps of fittiNG the pacKer Onto tHe anChoring meMbeR, and inSerTIng the AnchorIng meMbEr iNTO the bONE.
ADvaNtAgeously, thE MEthOd exhIbIts tHe steps Of fitting the anchorINg mEmber into the bOne, And tHEN fIttINg THe pAcKEr tO THe anchoring membEr.
AdvantagEoUSlY, the method EXhiBiTs an addItional Step oF AnchoriNg the anchOring membEr To thE EXteNt that the pAcker conTacts the bONe. LatTIcE mismAtcH is a faCtOr wHen foRming oNE maTeriaL on anoThEr, diffErent, MaTerial. FoR instance, when forming epiTaxial SilicOn-gErmanium (SIGe) ON a sIlicon subStraTe the crystAl lAttIce of The SIlicoN wilL SeRve AS a temPlatE For the SiGE GrOwtH ANd, Even though tHE sIGe Has a lArgER lattiCe coNstant than silicon, THe
 other objects are achieve d by the p resen t i nve nt ion,  whi ch is a spinal oste osynthesis assembly co mpris in g  ana nc horin g membe r  h a v ing  a  h ead  w i th  a bo neengagin g portion,  an dat least one pa cker thatcon tacts bone,and  is ab le  to be co upl ed to  the a n chorin g member. 
A d vantag e ously,t h epart  of the bone enga g in g  portion of th e anch or i ng m emb erwhich is n ot  enga g ed in t h eb o n e f i nds itself at  least part i all y surr ou nde d  by th e pac ke r  wh ich isolate s it  from the  adjac e nt envi r onment.  Addit ion all y, s i nc ethe  p a cke r  c ont a cts  the bon e,  t his p rovi d e s bett erstab ility . In conseque nce , th e  an chori ng me mber  i s sta bilize d and  t he non-engagedpart  of the b one  e nga gi ng po r tion c annolongerdamaget heti s s u esurrounding the an ch o r in g member .
Adva n ta ge o usly, th epac kerh a s a s lots uc h that t he pac k er  f orms ano n-clos ed  an nul us.
A d vant ageous ly, thepacke r  is elasticall y  deformable t o  f a c il i tate  mo vement of t he b o ne e ngag i ng  po r tionthrou gh th e  slot. Thus, the pa ck er can  be f itted over th e anchorin g m ember wh en t h el atter is alrea dy an chored int he bone. 
Adva ntageous ly, the p a c ker is i n t hesha peo f  a n annulus and t he p ac ker has  alip, wh ile  th e a nch or ing membe r has agr oo ve  s uch  that engageme nt  of  t helip w i th the  groo ve f ac il i tat es coup l in g thepa ck er t o t he  anch orin g  me mber. T hus, thepac k er m ay  b e clipp ed onto the a nc horing mem be r i n a si m p le movem ent. Also advantageousl y , the l ipmay b e di scontinuo us. 
Advan tag e ously,  in ad ditio ntot h e lip , th e p ac ker has ar e ces s and  i s st ackable  to another packer via  engagement o f t he l i p  o f o n ep ack er tot h e recess of ano ther packe r. Th ere is als o  pr ov ided, a ccordin g tot he inve ntion, asurgicalme thod e xhi biting the  steps o f fitting the p a ck er on tothe an ch ori ng me mber,a ndinser ting t he  ancho ringme mber int o the bone.
Advantageou sly, t he me tho d exhibit s t h e s teps of f itti ng the anc hor ing  memb eri nto t he b o ne , a n d the n fi t ting thep ac ker t othe anchori n g mem ber.Adv a ntageo usly , the method exhi b its an additio nals t epofa ncho ri ng the anchori ngme m b er to th eextent that  the pac ke r  cont acts t he bon e. Latt i c em ismatc h is  afactor wh enfo r ming on ema t erialon a no ther,differ e nt,m a terial. For inst ance, w hen f o rmi ng ep it axial s i lico n-germaniu m (SiGe) on  a sil icon  subs trate t he  cryst alla ttice of t h e silicon  will  serveas  a t emp late f or t h e  SiGe  gro wt h a nd, event h ou g hth e  Si Ge h as ala rger  latticec onstanttha n  silico n,  th e 
 other_objects are_achieved by the present_invention, which_is_a spinal_osteosynthesis_assembly comprising an_anchoring member having_a head with a_bone engaging portion,_and_at least one packer that contacts bone, and is able to be coupled to_the_anchoring member.
Advantageously,_the_part_of the bone engaging portion_of the anchoring member which_is not_engaged in the bone finds itself at least_partially_surrounded by the_packer which isolates it from the adjacent environment. Additionally,_since the packer contacts the bone,_this provides better_stability._In_consequence, the anchoring member_is stabilized and the non-engaged part_of the bone engaging portion can_no longer damage the tissue surrounding the_anchoring member.
Advantageously, the packer has a_slot such that the packer_forms a_non-closed annulus.
Advantageously, the packer is_elastically deformable to_facilitate movement_of the bone_engaging portion through the slot. Thus,_the packer can_be fitted over the anchoring member_when_the latter is_already_anchored_in the_bone.
Advantageously, the packer_is_in the_shape_of an annulus and the packer_has_a lip, while the anchoring member has_a groove such that_engagement_of the lip with_the groove facilitates coupling the_packer to the anchoring member. Thus,_the packer_may be_clipped onto the anchoring member in a simple movement. Also advantageously,_the lip may be discontinuous.
Advantageously, in_addition to the lip,_the packer_has_a recess and_is_stackable to_another packer via engagement of the lip_of one_packer to the recess of another_packer.
There is also provided,_according_to the invention, a surgical method_exhibiting the steps of fitting the_packer onto the anchoring member,_and_inserting_the anchoring member into the_bone.
Advantageously, the method exhibits the steps_of fitting the_anchoring member into the bone, and then_fitting_the packer to the anchoring member.
Advantageously,_the_method exhibits an additional step of_anchoring_the_anchoring member to the extent_that the packer contacts the bone._Lattice mismatch is a factor when forming one material_on another, different,_material. For instance, when forming_epitaxial_silicon-germanium_(SiGe) on a silicon substrate the crystal lattice of the_silicon will_serve as a_template for the SiGe growth and, even though the SiGe_has a larger lattice constant than silicon,_the