Φ5.0 Series Fixation Fixation Fixator - Distal radius frame

Distal radius fractures (DRFs) e etsahala ka har'a 3 cm ea karolo e hole ea radius, e leng ho robeha ho atileng haholo maotong le maotong a kaholimo har'a basali ba baholo le banna ba bacha ba baholo.Liphuputso li tlalehile hore li-DRF li etsa 17% ea fractures tsohle le 75% ea ho robeha ha forearm.

Liphetho tse khotsofatsang li ke ke tsa fumanoa ka ho fokotsa boqhetseke le ho lokisa samente.Lithako tsena li ka fetoha habonolo ka mor'a tsamaiso e tsitsitseng, 'me mathata, a kang ho senyeha ha lesapo la masapo le ho se tsitse ha letsoho la letsoho, a ka' na a etsahala qetellong.Ho etsoa opereishene ho phekola distal radius fractures e le hore bakuli ba ka etsa palo e lekaneng ea boikoetliso bo se nang bohloko ho tsosolosa ts'ebetso e tloaelehileng ha ba ntse ba fokotsa kotsi ea phetoho e fokolang kapa bokooa.

Tsamaiso ea li-DRF ho bakuli ba lilemo tse 60 le ho feta e etsoa ho sebelisoa mekhoa e mehlano e tloaelehileng e latelang: tsamaiso ea "volar locking plate", "non-bridging" ea kantle, ho lokisa ka ntle, ho lokisa terata ea percutaneous Kirschner, le plaster fixation.

Bakuli ba etsoang opereishene ea DRF ka phokotso e bulehileng le ho lokisoa ka hare ba na le kotsi e kholo ea tšoaetso ea maqeba le tendonitis.

Li-fixator tsa ka ntle li arotsoe ka mefuta e 'meli e latelang: ho kopanya le ho se kopane.Sebopeho sa ka ntle sa cross-articular se thibela ho tsamaea ka bolokolohi ha letsoho ka lebaka la tlhophiso ea lona.Li-fixator tsa ka ntle tse se nang moeli li sebelisoa haholo hobane li lumella mosebetsi o fokolang oa manonyeletso.Lisebelisoa tse joalo li ka thusa ho fokotsa fracture ka ho lokisa likhechana tsa fracture ka ho toba;li lumella ho laola habonolo likotsi tsa lisele tse bonolo 'me ha li thibele ho sisinyeha ha letsoho la tlhaho nakong ea phekolo.Ka hona, li-fixator tsa kantle tse sa keneng li khothalelitsoe haholo bakeng sa kalafo ea DRF.Lilemong tse mashome a seng makae tse fetileng, tšebeliso ea li-fixator tse tloaelehileng tsa ka ntle (li-alloys tsa titanium) li fumane botumo, ka lebaka la biocompatibility ea tsona e babatsehang, matla a phahameng a mechine le ho hanyetsa kutu.Leha ho le joalo, li-fixator tsa ka ntle tse tloaelehileng tse entsoeng ka tšepe kapa titanium li ka 'na tsa etsa hore ho be le lintho tse ngata tse entsoeng ka maiketsetso ho computed tomography (CT), e leng se entseng hore bafuputsi ba batle lisebelisoa tse ncha bakeng sa lisebelisoa tsa ka ntle.

Tokiso ea ka hare e thehiloeng ho polyetheretherketone (PEEK) e ithutoe le ho sebelisoa ka lilemo tse fetang 10.Sesebelisoa sa PEEK se na le melemo e latelang ho feta lisebelisoa tse sebelisoang bakeng sa ho lokisa masapo a setso: ha ho na tšepe ea tšepe, radiopacity, ho kena-kenana ho fokolang le litšoantšo tsa magnetic resonance (MRI), ho tlosoa habonolo ha ho kenngoa, ho qoba ts'ebetso ea "cheld welding" le lisebelisoa tse molemo tsa mechine.Ka mohlala, e na le matla a matle a ho tsitsa, matla a ho kobeha, le matla a ho ama.

Liphuputso tse ling li bontšitse hore li-fixator tsa PEEK li na le matla a molemo, ho tiea, le ho satalla ho feta lisebelisoa tsa ho lokisa tšepe, 'me li na le matla a molemo a mokhathala13.Le hoja modulus ea elastic ea thepa ea PEEK e le 3.0-4.0 GPa, e ka matlafatsoa ke carbon fiber, 'me modulus ea eona ea elastic e ka ba haufi le ea cortical bone (18 GPa) kapa ea fihla boleng ba titanium alloy (110 GPa) ka ho fetola bolelele le tsela ya tlhale ya carbon.Ka hona, thepa ea mochini ea PEEK e haufi le ea masapo.Matsatsing ana, fixator ea kantle e thehiloeng ho PEEK e entsoe le ho sebelisoa tleliniking.