Hip Implant dik tak thlan dan

Hip prosthesis hi implantable medical device a ni a, hmun thum a awm a, chungte chu: femoral stem, femoral head leh acetabular cup te an ni. Heng hmun pathumte hian hip joint chhia chu a thlak a, mobility a siam tha leh a, damlo tan natna a tiziaawm bawk.

01.A chhunga thil awmte chu engte nge ni hip prosthesis siam a ni?

Hip prosthesis hi thil pawimawh pathum a awm a, chungte chu:

Femoral stem a ni

damlo femoral head an lakchhuah hnuah damlo femoral canal chu reamed a ni a, femoral stem chu dah a ni. Femoral stem hi damlo kum, morphology, bone idiosyncrasies leh doctor tih dan azirin cemented emaw uncemented emaw (press fit technique) a ni thei.

Femoral Lu lam a ni

Femoral stem chunglam tawp lamah chuan metal, polymer emaw ceramic hmanga siam spherical head dah a ni a, chu chu femoral head hlui chhe tawh, lakchhuah tawh chu thlak a ni.

Acetabular prosthesis (a nih loh leh cup prosthesis) hmanga siam .

acetabulum chung lam atanga cartilage chhia, femoral head hlui awmna chu lakchhuah a ni. A hmunah chuan tapered acetabular prosthesis a awm bawk. Screw emaw cement emaw hmangin a hmuna vawn theih a ni. He cup chhungah hian plastic, ceramic emaw metal inlay emaw a awm a, chu chuan prosthetic femoral head nen a inzawm ang.

02. Hip prosthesis siamna atana hmanraw pawimawh ber berte chu engte nge ni?

Hip prosthesis siamna atana hmanraw hman dan azirin a danglam thei. Tunah hian heng thilte hi chi thum-ah then theih a ni a:

Metals te pawh a awm

Metal thenkhat, stainless steel, cobalt-chromium alloy emaw titanium te hi femoral stem siam nan an hmang thin.

Polymer te chu a awm

polyethylene, plastic khauh tak leh khawvela hman lar ber a ni. Inert leh biocompatible tak a ni a, kum 1960 chho khan orthopaedic-ah cemented acetabular prosthesis-a component angin an rawn lut a ni. Tunah pawh hian damlo thenkhatah he thil hi hman a la ni reng a, mahse a chhiatna chu hun kal zelah plastic atanga prosthesis chu a chhe vek thei a, chuvang chuan prosthesis dam chhung a tawi phah dawn a ni. Mahse, damlo thenkhat chuan he prosthesis hi kum 30 thleng an vawng thei a, thenkhat chuan kum tlemte chauh an dah theih avangin he hlauhawmna hi a la tlem thei tho a ni.

▲Thlalak: PROCOTYL® L Acetabular Cup (Minimally Invasive Orthopedic Products: Delta Ceramic Liners leh A- Class Highly Cross-Linked Polyethylene Liners te nen a inmil)

Femoral lu leh femoral cup inkar a inherna hmun hian friction moment kan tih chu a siam a ni. Prosthesis-a chak lo ber a ni a, a bik takin a chhe laiah chuan a chak lo ber a ni. Pairing awm thei pali a awm a:

-Ceramic-polyethylene hmanga siam a ni

-Ceramic-ceramic hmanga siam a ni

-Metal-polyethylene hmanga siam a ni

-Metal-metal hmanga siam a ni

Friction pair tin hian thatna leh that lohna an nei vek a, orthopedic surgeon chuan criteria hrang hrang hmangin friction combination tling ber a thlang ang a, chung zingah chuan damlo kum, taksa chakna leh ruh specificity te pawh a tel a ni.

Hriat tur pawimawh tak chu metal prosthesis hi a tlangpuiin hman a tha lo. Chutiang implant siamtu company ṭhenkhat chuan kum 2010-2011 khan hralh chhuah tawh loh an rel a, damlote hlawkna tur atan chuan hman loh implant te chu ko kir leh an tum a ni. Buaina hi implant-a element hrang hrangte inkara inhnialna aanga lo chhuak a ni a, chu inhnawh tawnna chuan thir chi hrang hrang te chu a paih chhuak thei a, chu chu thisenah a lut ta a ni. Hip joint-ah hian heng thil te te hian allergic reaction a thlen thei a, chu chuan localized pain leh lesions a thlen thei a ni.

03 a ni. Hip prosthesis fixation hmanraw pawimawh ber berte chu engte nge ni?

Prosthesis hi surgical cementing emaw secondary bone regeneration (uncemented emaw compression technique) hmangin femur emaw acetabulum emaw-ah fix theih a ni. A tlangpuiin cemented femoral stem hi cemented femoral cup nen a inzawm a ni. He technique ziarang chu a hnuaia mi ang hian tarlan a ni:

Surgical bone cementing technique hman a ni

ruh cement hman chu an acrylic polymer hmanga siam a ni . Procedure neih chhung hian minute 15 chhungin a khauh a, fixation hnuah a set nghal bawk.

Uncemented emaw press-fit technique emaw hman a ni

Uncemented prostheses (prosthetic rods emaw cups) te hi kar ruk atanga kar sawm leh pahnih hnuah ruh siam tharna phenomenon avang hian an stabilise thin. Ruh siam thar lehna tur atan chuan ruh siamna chunglam chu ruh mineral component hydroxyapatite layer te tak te hmanga khuh a ni tlangpui. Ruh kianga awm chuan hydroxyapatite chu a component pakhat a nih thu a hre chiang a, chutah chuan prosthesis ruh layer atang chuan rang takin a lo thang chhuak ta a ni. Hydroxyapatite hi chemical hmanga siam theih a ni.

04. Hip prosthesis hi eng chen nge a daih?

Tun hnaiah hian prosthesis service life a pung chho zel a: kum 50 hnuai lam damlote zingah kum sawm an hman hnu pawha an prosthesis la thawk thei zat chu 99% vel a ni.

Hetiang zat hi kum upa zawk leh chuvangin thut reng thinte pawhin an hmu thei bawk. Chuvangin hip replacement surgery hi kum tin damlote tan tih theih a ni.

Prosthesis service life hi a hnuaia thil awmteah hian a innghat ber a ni.

-damlo kum, body mass index leh activity level te

-A lu lem (prosthetic head) diameter

-friction moment chi hrang hrang

Hemi hnuhnung zawkah hian hriat tur pawimawh tak chu prosthesis dam rei zawng hi prosthesis composition-ah nasa takin a innghat a ni. Femoral head leh prosthetic cup pahnih hi metal emaw ceramic emaw a siam a nih chuan a thatna ber chu wear rate a hniam em em a, femoral head zau zawk hman theih a nih avangin dislocation hlauhawmna a tihtlem phah a ni. Metal-to-metal leh ceramic-to-ceramic prosthesis pahnih inzawm a nih chuan prosthesis chhehvel tissue-a bawlhhlawh awmte chu a darh zau theihna a awm tih hriat a pawimawh. Ceramic-ceramic prosthese hi metal-metal prosthese aiin a chhe tlem zawk a, metal-metal pair aiin frictional erosion laka a do thei zawk a, mahse fimkhur taka hman a ngai tho tho.

05. Hip prosthesis hman hian eng hlauhawmna nge a neih?

Surgical intervention eng pawha hlauhawm awm thei (anesthesia risk, damdawi ina natna) bakah hian harsatna a awm thei bawk:

Dislocation awm theihna a awm

hei hi damlote tana harsatna lian ber a ni a, hun kal zelah a hlauhawmna a inang lo. A bik takin operation hnu thla hmasa berah a sang a, kum khatna hnuah a tlahniam leh thin. Chumi hnuah chuan hun kal zelah zawi zawiin a pung leh ta a ni. Dislocation thlen thei thil engemaw zat a awm a, chu chu damlo, operation leh implant te, postoperative follow-up te nen a inzawm thei bawk. Dislocation episode hmasa ber hnuah a lo lang leh theihna chance a sang hle.

Hri kai theihna a awm

surgery eng pawh hian natna kai theihna a keng tel a, prosthesis dah a nih chuan taksa dang taksa a luh rualin he hlauhawmna hi a pung chho zel a ni. Chutiang chuan immune system chu a divert a, immunodeficiency localized area a siam a ni. Chumi hnuah chuan bacteria, a tlangpuiin dam theihna chance nei lote chu he taksa dang chungah hian an lo thang lian thei ta a ni. Hetianga hri kai theihna hi kum upa zawkte zingah a tam zawk thei a, a chhan chu an taksa hriselna (immune defense) a tha lo zawk a ni. Thil dang, thau lutuk, intervention tibuaitu, emaw, zunthlum, immunity tihhniamtu, leh meizuk te hian hri kai theihna a tipung thei a ni.

Allergic reaction neih theihna a awm

prosthesis siamna atana hman ṭhenkhat chuan allergic reaction a thlen thei a ni.

Revision surgery neih theihna risk

Prosthesis a chhiat, a chhe emaw, a chhe emaw a nih chuan revision surgery a ngai thei.