Views: 0 Author: Sayt Ɛditɔ Pɔblish Tɛm: 2025-06-17 Ɔrijin: Ples
di distal tibial intramedullary nel (DTN) de sho fכ difrεn difrεn tibial kondishכn dεm, we inklud simpul, spiral, comminited, long oblique, εn segmental shaft fraktכs (patikyula fכ di distal tibia), εn bak distal tibial mεtafyseal fraktכs, nכn-/mal-yun; I kin wok bak, bɔku tɛm wit spɛshal divays dɛn, fɔ manej bon dɛfɛkt ɔ limb lɔng diskrɛpshɔn (lɛk fɔ lɔng ɔ fɔ shɔt).
signifyant soft tisu damej, ay infεkshכn rεt, lכng rεkכvri
Risk fɔ gɛt injuri na di ni, fɔ fiks am we nɔ fayn, fɔ prone to malalignment
Minimal invasiv aprɔch wit retrogrɛd insɛt dizayn .
distal tibial fraktכs na wan kכmכn tכp fכ lכw limb fraktכs. Tradishonal tritmɛnt dɛm lɛk fɔ lɔk plet ɛn antegrade intramedullary nel dɛn ɔl gɛt dɛn drawbacks. Plɛt dɛn we dɛn kin lɔk kin mek dɛn gɛt infekshɔn afta dɛn dɔn ɔpreshɔn ɔ dɛn kin gɛt sɔft tisu nɛkrɔsis, dɛn kin mek dɛn wɛl fɔ lɔng tɛm; pan ɔl we di antegrade nel dɛn nɔ kin izi fɔ du, dɛn kin pwɛl di knee jɔyn, mek dɛn fil pen, ɛn dɛn kin kɛr di risk dɛn we nɔ fayn fɔ fiks ɔ malalign, we kin mek dɛn nɔ ebul fɔ wɛl.
wan nכvel tritmεnt opshכn—distal tibial nel (DTN)—de gi wan nyu pεspεktiv fכ mεnεj distal tibial fraktכs wit in yכnik rεtrogεd disayn.
Fig. 1: DTN retrogrɛd insayshɔn dizayn .
Dɛn kin put di sikman na di say we dɛn kɔl supine pozishɔn. Displaced fraktrɔs fɔ bi ridyusibl wit an; If nid de, yuz ridɔkshɔn fɔs fɔ ɛp bifo yu put di DTN insay. If wan akɔmpanyin fibular fraktrɔs de, di rayt fibular alaynɛshɔn kin ɛp fɔ ridyus di tibial.
Di men tin dɛn we yu fɔ tink bɔt: supine pozishɔn, yuz ridɔkshɔn fɔsɛps if nid de. prayoritayz fibular fraktכs mεnejmεnt fכ mek sכh se dεn ridyus di tibial akכrd.
wan 2–3 cm longitudinal insishכn de mek na di tip fכ di mεdial malleolus fכ εkspכz di supεrfishal deltoid ligament. wan gayd pin de insay כ sכmtεm mεdial to di tכp na di malleolus, 4–5 mm frכm di artikulכr sεf.
Longitudinal kot na di medial malleolus tip .
4–5 mm frɔm di jɔyn surface .
skru dɛn we de lɔk di intalɔk dɛn proksimal ɛn distal wan .
Fig. 2A: Gayd pin insayshɔn .
Fig. 2B: Lateral we yu de si
Fig. 2C: Riaming prɔses .
Wantɛm anklɛ jɔyn mobiliti ɛn fut-to-flɔ kɔntakt
Progres to 50% weit-bearing kapasiti .
We dɛn de wach di kɔlɔs fɔmɛshɔn ɛn pen .
Anklɛ jɔyn aktiviti kin bigin wantɛm wantɛm afta dɛn du di ɔpreshɔn .
Avɔyd fɔ gɛt wet fɔ 4–6 wik .
smɔl smɔl transishɔn to ful wet-bɛrin na 8–12 wik
Rigyul raydiografik monitarin di tɛm we dɛn de rikavari faz .
Wan stɔdi bin fala 10 pasɛnt dɛn. Bay 3 mɔnt post-op, 7 kes dɛn bin dɔn wɛl; Ɔl di pasɛnt dɛn bin ebul fɔ wɛl insay 6 mɔnt. Wan kes we ɛni wan pan di Varus ɛn Recurvatum difɔmiti dɛn bin apin. Nɔ lɔs pan ridɔkshɔn, infɛkshɔn, implant-rilayt kɔmplikeshɔn, ɔ Iatrogenic injury dɛn bin si.
Healed insay 3 mɔnt .
Healed bay 6 mɔnt .
Infɛkshɔn dɛn .
Autkam Mɛzhɔ | DTN Rizɔlt dɛn | Tradishɔn Mɛtɔd dɛn . |
---|---|---|
Di yunion ret (3 mɔnt) . | 70% | 40-60% |
Malalignmɛnt (>5°) . | 20% | 25-40% |
Infɛkshɔn ret . | 0% | 5-15% |
AOFAS Skɔl . | 92.6 | 73-88 pipul dɛn bin de. |
Frakshɔn tayp: transvas tibial fraktrɔs + fibular fraktrɔs
Komplikashɔn: Sɔft tisu krɔsh injuri .
Post-op: Na 6 smɔl smɔl say dɛn nɔmɔ we dɛn kɔt, we dɔn dɔn insay 1 ia insay 1 ia
DTN implanted tru minimal incisions wit ekselent soft tissue preservation. Fibular fraktכs stεbyulεd wit intramedullary nel. Di pɔsin bin ajɔst to ful rikavari wit nɔ kɔmplikeshɔn.
Pre-op imej .
Pɔst-ɔp wantɛm wantɛm .
3-mɔnt fɔlɔp-ɔp
1-ia fɔ mɛn pipul dɛn .
rεtrogεd nel dεm gεt supεriכr akshal εn rotashכnal stiffnεs kכmpεr to mεdial lכk plet dεm εn antegrade nel dεm. Grinfild ɛn ɔda pipul dɛn. kכndukt bayomεkanikal tεst we de sho se yuz tu distal skru dεm na di DTN achy 60–70% fכ di kכmpreshכn stiffnεs εn 90% fכ di torshכnal stiffnεs kכmpεr to tri skru dεm.
We yu kɔmpia am wit di plet dɛn we dɛn kin lɔk, di nel dɛn we de insay di bɔdi kin mek dɛn nɔ gɛt bɔku sɔft tisu, mɔ fɔ di wan dɛn we dɔn ol ɛn di wan dɛn we gɛt siriɔs sɔft tisu injuri frɔm we dɛn gɛt bɔku ɛnaji trauma. Di prosidur nɔ nid fɔ fleks di knee, ridyus di risk fɔ ridyus di lɔs ɛn mek i fayn fɔ di pasɛnt dɛn we gɛt limited knee motion.
di nonunion εn malalignment rεt fכ di antegrade nel dεm na 0–25% εn 8.3–50%, rispεktivli; fכ lכk plet, 0–17% εn 0–17%. Insay dis stɔdi, ɔl di kes dɛn we dɛn ajɔst to di union, ɛn na 20% nɔmɔ bin gɛt difɔmiti >5°, we dɛn kɔmpia to tradishɔnal we dɛn.
In sɔmari, DTN de gi advantej oba lɔk plet ɛn antegrade intramedullary nel ɛn ripresent wan ifektiv sɔlvishɔn fɔ trit distal tibial fraktrɔs. DTN ficha minimal invasivnes, ay stebiliti, ɛn kwik rikavari. Na valyu ɔda we fɔ trit tradishɔnal tritmɛnt dɛn ɛn i fayn fɔ mek dɛn protɛkt am.
Model:1200-27 Di wan dɛn we de wok.
Di ditel dɛn bɔt di prɔdak .Model:1000-0139 Di wan dɛn we de wok.
Di ditel dɛn bɔt di prɔdak .Yamakawa Y, Uehara T, Shigemoto K, ɛn ɔda pipul dɛn. prεliminεri risכlt dεm fכ stεbilizεshכn fכ fa distal tibia fraktכs wit di distal tibial nel: wan prospektiv, mכltisenta kes siriכs stכdi[J]. Injuri, 2024: 111634.
创伤骨科智能科技 智汇骨. (2024年12月31日). 胫骨远端髓内钉突破胫骨远端骨折的治疗 [微ps信公众号文章]. 创伤骨科智能科技 智汇骨. https://mp.weixin.qq.com/s/9uqqvj0eae4bkzg2u4nq8q (we dɛn akses: 2025年06月07日)
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