I. Ka morero ofe cannulated screw have a lesoba?
Lisistimi tsa screw tse kentsoeng li sebetsa joang? Ho sebelisa lithapo tse tšesaane tsa Kirschner (K-wires) tse kentsoeng lesapong ho tsamaisa li-screw trajectories ka nepo likhechana tse nyane tsa masapo.
Tšebeliso ea likhoele tsa K e qoba ho phunya masoba a sefofane ho feta tekano 'me e lumella ho lokisoa ha likhechana tsa masapo tse haufi nakong ea ho kenya screw. Lisebelisoa tse sekoti le li-screws tse sekoti li kenngoa lesapong holim'a likhoele tsa K. Cannulated screw fixation e thusa mokokotlong oa mokokotlo oa mokokotlo ho tsitsisa ho robeha ha odontoid le ho phekola ho se tsitse ha atlantoaxial.
Li-screws tse entsoeng ka makotikoting li na le melemo e 'maloa ha li bapisoa le li-screws tse se nang cannulated: 1) lithapo tsa K li tataisa boemo ba sekoti ka har'a lesapo;
2) terata ea K-wire e etsa hore sebaka se be bonolo haeba tselana ea mantlha e ne e sa loka;
3) lithapo tsa K li lumella ho lokisoa ho tsoelang pele ha likhechana tsa masapo tse sa tsitsang tse haufi;
4) Lithapo tsa K li thibela ho sisinyeha ha likhechana tsa masapo tse sa tsitsang nakong ea ho kenngoa ha screw.
Mathata a amanang le mohala oa K (ho robeha, ho beoa bocha, le tsoelo-pele) a ka fokotsoa ho sebelisoa mekhoa e nepahetseng ea ts'ebetso. Sistimi e khethehileng ea "screw" e entsoeng ka makotikoti e ile ea ntlafatsoa ka ho khetheha bakeng sa tokiso e kaholimo ea molomo oa popelo ho lumella ho cheka ho sebelisa lisebelisoa tse telele tsa tunnel, li-sheath tsa tishu, litataiso tsa ho cheka le likhoele tse telele tsa K. Lisebelisoa tsena li lumella ho fana ka li-screw tsa cannulated ka lehlakoreng le tlase ho ea mokokotlong ka li-trajectories tse telele tse bonolo. Li-screws tse kentsoeng li na le melemo e mengata ha li bapisoa le li-screws tse sa tsitsang bakeng sa ho lokisa lesapo la mokokotlo le sa tsitsang la mokokotlo tsamaisong.
II. Ke sefe se betere sa li-screws tse nang le cannulated kapa lipekere tsa intrameduallary?
Lipekere tse peli tsa intramedullary le li-cannulated ke lisebelisoa tsa bongaka tse sebelisetsoang ho lokisa ka hare ho fractures. E 'ngoe le e' ngoe e na le melemo ea eona 'me e loketse mefuta e fapaneng ea fractures le litlhoko tsa kalafo.
| Mofuta | Molemo |
| Nail ea Intramedullary | Tšusumetso ea ho lokisa lipekere tsa intramedullary ho fractures e tsitsitseng ea masapo a malelele e ntle, e nang le kotsi e fokolang le mali a fokolang. Intramedullary Nail fixation ke ea ho lokisa bohareng. Ha ho bapisoa le lipoleiti tsa tšepe, lipekere tsa intramedullary li ka boela tsa sireletsa botšepehi ba lera la extraosseous, tsa thibela ho lieha ho fola ha fracture, le ho phetha karolo ea ho qoba tšoaetso. |
| Cannulated Screw | E sebelisoa haholo-holo libakeng tse kang ho robeha ha molala oa botšehali, ka liphello tse khethehileng tsa ho lokisa le ho hatella. Ho feta moo, tšenyo e nyenyane haholo 'me ha ho hlokahale lipoleiti tsa tšepe. |
III.Na u ka sebelisa li-cancellous vs cortical screws?
Li-screws le li-screw tsa cortical ke mefuta e 'meli ea li-implants tsa masapo tse sebelisoang ho lokisa masapo, empa li etselitsoe mefuta e fapaneng ea masapo 'me li na le lisebelisoa tse fapaneng:
Cancellous Screws Ka ho khetheha e etselitsoe hore e sebelisoe ka har'a masapo a spongy, a fokolang haholo, le a trabecular, a atisang ho fumanoa lipheletsong tsa masapo a malelele, a kang femur le tibia.Ka tloaelo e sebelisoa libakeng tseo lesapo le nang le porous le tse fokolang haholo, tse kang libaka tsa metaphyseal tsa masapo a malelele. Hangata li sebelisoa mekhoeng e amang lesapo la mokokotlo, pelvis le likarolo tse itseng tsa lehetla le letheka.
Cortical Screws e etselitsoe ho sebelisoa ho lesapo le teteaneng, la cortical, le etsang karolo e ka ntle ea masapo a mangata 'me le thata haholo ebile le matla ho feta lesapo le hlakollang. Ka kakaretso e sebelisoa maemong ao ho hlokahalang matla a maholo le botsitso, joalo ka ho lokisa fractures ho diaphysis (shaft) ea masapo a malelele. Li boetse li sebelisoa lisebelisoa tse itseng tsa ho lokisa ka hare le lipoleiti.
Ka kakaretso, khetho pakeng tsa li-screws tsa cancellous le cortical e itšetlehile ka mofuta oa lesapo le tsitsitseng le litlhoko tse khethehileng tsa mokhoa oa masapo. Li-screws tsa kankere li loketse lesapo le bonolo, le nang le masoba ho feta, ha li-screws tsa cortical li loketse bakeng sa lesapo le teteaneng, le jereng mojaro.
Nako ea poso: May-09-2025
