Views: 0 Author: Site Editor Publish Time: 2025-05-22 Keeb Kwm: Qhov chaw
Distal humerus fractures yog ib hom kev raug mob siab zog hauv orthopedics. Qhov nyuaj ntawm kev kho mob yog nyob rau hauv lub complexity ntawm lub anatomical qauv thiab yuav tsum tau rov qab ua hauj lwm sib koom ua ke. Raws li tus kws tshaj lij kev daws teeb meem hauv kev txhim kho orthopedic sab hauv, peb muab kev tshuaj xyuas qhov tob ntawm cov txheej txheem raug mob, kev faib tawm AO, thiab cov tswv yim kho cov phaj rau cov pob txha pob txha pob txha los txhawb kev kho mob.
Lub distal humerus muaj cov kab nruab nrab thiab sab nraud, uas suav nrog cov epicondyles thiab condyles.
Distal humerus fractures yog tshwm sim los ntawm kev raug mob ncaj qha (piv txwv li, ntog) lossis tsis muaj zog (xws li, twisting lossis leeg rub).
Kev faib tawm AO faib cov pob txha humerus nyob rau hauv peb lub ntsiab: A, B, thiab C.
Kev kho mob phais ua raws li AO cov hauv paus ntsiab lus: kev txo qis hauv anatomical, ruaj khov kho, thiab kev kho mob thaum ntxov.
Locking plates muab kev ruaj ntseg biomechanical, tshwj xeeb tshaj yog nyob rau hauv cov pob txha pob txha.
CZMEDITECH muaj peb qauv: extraarticular (01.1107), lateral (5100-17), thiab medial (5100-18) daim hlau.
Lub distal humerus muab faib rau hauv nruab nrab kem thiab lateral kem.
Cov kab nruab nrab suav nrog qhov nruab nrab ntawm qhov metaphysis ntawm humerus, medial epicondyle, thiab medial condyle, suav nrog trochlea ntawm humerus.
Sab nraub qaum muaj xws li sab nraud ntawm lub metaphysis ntawm humerus, lateral epicondyle, thiab lateral condyle, nrog rau lub capitulum ntawm humerus.
Nyob nruab nrab ntawm ob kab yog lub anterior coronoid fossa thiab posterior olecranon fossa.
Raws li ib feem tseem ceeb ntawm lub luj tshib sib koom, cov pob txha humerus feem ntau tshwm sim los ntawm 'txoj kev raug mob' (xws li lub caij nplooj zeeg tsaws ntawm lub luj tshib) lossis 'kev raug mob tsis ncaj' (xws li kev sib tw lossis kev cuam tshuam).
Cov kab nruab nrab suav nrog qhov nruab nrab ntawm qhov metaphysis ntawm humerus, medial epicondyle, thiab medial condyle, suav nrog trochlea ntawm humerus.
· Muaj zog contraction ntawm internal rotator cov leeg
· Muaj zog contraction ntawm lub luj tshib flexor cov leeg
Sab nraud quab yuam xws li kev sib tsoo tsheb los yog ntog los ntawm qhov siab tuaj yeem ua rau muaj kev puas tsuaj los yog cuam tshuam rau cov pob txha.
· Kev sib tsoo tsheb
· Poob los ntawm qhov siab

Raws li AO cov kev faib tawm, cov kab mob humerus distal yog categorized raws li hauv qab no, ncaj qha cuam tshuam rau kev xaiv cov tswv yim kho mob:
- A1: Kev puas tsuaj yooj yim, tsis muaj kev cuam tshuam ntawm cov leeg.
- A2 / A3: cuam tshuam los yog hloov pauv metaphyseal pob txha, xav tau kev saib xyuas rau lub kaum sab xis deformities.
Cov kab tawg muaj feem cuam tshuam rau qhov sib koom ua ke tab sis tsis muaj kev sib cais tiav; Kev txo qis hauv anatomical yog qhov tsim nyog los txhim kho kev sib koom ua ke.
- C1 / C2: Yooj yim intra-articular fractures nrog metaphyseal kev koom tes.
- C3: Comminuted intra-articular fractures, qhov nyuaj tshaj plaws los kho; ruaj khov kho yog xav tau los txo txoj kev pheej hmoo ntawm kev mob caj dab tom qab..
Kev faib tawm AO qhia meej txog qhov hnyav ntawm qhov tawg thiab muab kev taw qhia rau kev xaiv phaj (xws li, ib leeg thiab ob daim hlau, Ntsia hlau xauv tsim) kom ntseeg tau tias ob qho tib si fixation zog thiab kev sib npaug ntawm cov roj ntsha.

Ua raws li AO lub tswv yim: 'Anatomical txo, ruaj khov kho, thiab ua haujlwm thaum ntxov.'
Sab nraud quab yuam xws li kev sib tsoo tsheb los yog ntog los ntawm qhov siab tuaj yeem ua rau muaj kev puas tsuaj los yog cuam tshuam rau cov pob txha.
Haum rau hom C tawg. Kev kho los ntawm ob qho tib si medial (piv txwv li, anatomical Locking plate ) thiab lateral (piv txwv li, parallel phaj) sab muab 3D stability thiab txo qhov kev pheej hmoo ntawm postoperative rotational deformity.
Siv rau hom A thiab ib nrab hom B puas. Pre-contoured daim hlau conforming distal humerus anatomy txo cov nqaij mos dissection.
Ua ke nrog percutaneous ntsia hlau tso kom txo tau cov kab mob thiab khaws cia cov ntshav periosteal.
Locking plates muab angular stability, tshwj xeeb tshaj yog zoo rau cov neeg mob osteoporotic.
Kev txo qis anatomical khaws cia lub luj tshib sib koom ua ke mus rau qhov loj tshaj plaws, txo cov teeb meem xws li nonunion lossis malunion.
Cov phaj zoo li tus rau cov pob txha tshwj xeeb (xws li, cov phaj sib txuam intercondylar) txhim kho kev sib kis thiab ua kom cov pob txha zoo.
Peb distal humerus Locking plate series yog tshwj xeeb tsim los rau complex distal humeral fractures. Nrog anatomical contouring, Ntsia hlau xauv thev naus laus zis, thiab ntau yam tshwj xeeb, nws muaj kev nyab xeeb, ruaj khov, thiab hloov kho cov kev daws teeb meem rau kev kho mob phais.
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