Sangano re sacroiliac , rinowanzonzi "SI sangano" ndiyo nzvimbo iripo pakati pe sacrum bone uye mushure mefupa. Iwe unogona kufunga nezveSIM yakabatana senzvimbo iyo musana unobatana nawo kumapapiro uye uye zvakapoteredza chiyero chehudyu.
Une majosi maviri eSI-imwe kune rumwe rutivi rwe sacrum.
Mabheoni eSI Joint
Kungofanana nemamwe masangano emuviri , sacroiliac inoumbwa nemapfupa maviri, kureva, sacrum uye ilium.
Pamberi payo, inorondedzerwa sejoarthrodial joint (iyo inoreva kuti iyo inoshandiswa zvakasununguka inenge yakanyatsobatanidzwa) inosanganisira sacrum uye mapfupa maviri echiuno shure. Aya maviri mapfupa emapfupa (ilium, sezvataurwa pamusoro apa) anozivikanwa nenzira inozivikanwa sevasominates yemapapu.
Mushure mokubatanidzwa kweS SI hausi kufambisa sezvinoita mberi.
Iyo sacrum iri bone rakataridzika rwuri pasi pechipfupa . Ikokupedzisira lumbar vertebra (uye kuyerwa kwemukona wose wepelinha yechinhu ichocho) inogara kumusoro pamusoro pe sacrum (iyo inzvimbo inozivikanwa se sacral base).
Kune rumwe rutivi, iyoumum inopa rudzi rwekusimbisa kutsigira ku sacrum.
Iyo sacrum inovhara pakati peiri mbiri (kana innominates) kuburikidza nekuita sechikwata. Musoro we sacrum wakazara kupfuura pasi, izvo zvinogonesa kubhururuka pakati pemapfupa panguva iyoyo. Mafupa anoenderera mberi akaiswa munzvimbo nemagetsi. Pamwe nekuwana zvakaenzana zvekubatana, izvi zvinokonzera kubatsira sacrum kutsigira uremu hwepamusoro uye musoro.
Iko kune zvakawanda zvakasungirirwa mumusana wejojo ye sacroiliac kupfuura mberi. Mutsva, mitsipa ndeyikuti:
- Iyo sacroiliac ligament inosangana yakawanikwa pakati peiyoum uye sacrum. Iyo inobatsira kuchengetedza kubatana kwepachiviri uye inowanikwa uko vazhinji vechipfuu kubva kune musana kusvika kune hip (uye kumucheto kwakadzika) kunoitika.
- Izvozvo zvinonzi sacroiliac ligament ndezvekuenderera kwe interossus sacroiliac ligament. Inopa rubatsiro kune nzira inopindira pamapapiro emapfupa emubatanidzwa nekuunza irium pedyo ne sacrum; nenzira iyi, inobatsira sacrum kutora uremu hwemutsara kubva kumusoro.
- Iyo iliolumbar ligament inobatsira kuwedzerwa kwekureruka uye kubatsirana mabasa e-interosseus sacroiliac uye posterior sacroiliac ligaments sezvinotsanangurwa pamusoro apa.
- Iyo sacrotuberous ligament ishungu huru inobva ku sacrum kusvika kumapfupa akagara (ischial tuberosities).
- Iro sacrospinous ligament duku inonzi ligament iyo inobvawo kubva mu sacrum kusvika kumapfupa akagara, asi haitauri sendima yakawanda se sacrotuberous ligament.
Zvese sacrotuberous uye sacrospinous ligaments inogadzirisa kufamba kwechikwata che sacrum. Sirasi yeS sacral inonziwo nutation uye inotsanangurwa pasi apa.
Pamberi pacho, anterior ligament inongova kuwedzera kwekuwedzera kwe capsule yakapoteredza sangano reSIM. Iyo anterior ligament iduku, kunyanya pakufananidza nemirairo kumashure .
SI Nhengo Dzakasiyana
Mune munhu mukuru, chimiro chekubatanidza sacroiliac chinoputika, asi chinoshandiswa nechirwere chinonzi concave kumashure uye chirevo chepamberi.
Zvimwe zvinongorongedza, sangano iri rakaumbwa zvikuru senzeve kana mhondi yeputsvo.
Kubatanidzwa kweS SI kunonakidza nekuti inoratidzika seyero rimwe chete rekubatanidza mberi uye imwe kumashure.
Pamberi payo, iri sangano re synovial (rinokurukurwa pamusoro apa se diarthrodial). Rudzi urwu rwekubatanidza runowanzove rwakawanda rwendo, kunyange zvisingaiti munyaya kana SI. (Mafudzi ako nemachiuno ndiwo majosi e-synovial-funga nezvekukura kukuru kwavanogona kuita.)
Mumashure, sangano reS SI rinoratidzika se syndesmosis. Izvi zvinongoreva kuti mapfupa maviri (sacrum uye ilium) anobatanidzwa pamwechete nemirairo. Isu takataura pamusoro pemagetsi aya ari pamusoro apa.
Iyo nzvimbo ye sacrum uye irium-iyo musangano pakati peiviri inoitika-yakafukidzwa nekartilage (iyo sacrum yakaiswa nechekare yakasiyana yekateti kupfuura iyo ilium), uyewo dzimwe nhamba dzebony contours dzinofananidzwa nemagetsi nemipata . (Izvi zviri pamberi pega chete.)
Pasi pemapfupa ega rimwe nerimwe rinosanganiswa neSIM rinosangana; ivo vanopindirana kuti vagadzire mberi kwekubatana. Sangano reSIT rakasununguka rinochengetwa chete nekugadziriswa uku nekugadzirisa.
Sezvakaitika kumasumbu, zvikamu zve gluteus maximus uye mishonga yepiriformis inodarika musangano weS SI.
Ko SI Yakabatana Inoitei?
Sangano reSIM rinotakura mutoro. Icho chinokonzera kutumira ichi chiremera munzvimbo iyo pakati pechiuno netsoka zvese, iyo inozivikanwa semucheto wakaderera. Iyo inotumirawo kushandura (rotational) masimba kubva kumucheto wakadzika unofamba kusvika kumusoro.
Somuenzaniso, panguva yekufamba, sezvamunoita kutora danho mberi, musana wako wekupedzisira unowedzera shure kwako uye iwe uri kubvisa chigunwe chikuru. (Izvi zvinonzi "shandura" chikamu chemaitiro.) Pano, pane nzvimbo shoma pakati pemapfupa maviri eSIM akabatanidzwa. Izvi zvinonzi kusongana congruency kana kuti "close pack" nzvimbo yemubatanidzwa. Nzvimbo yepamusoro yepachibatanidzwa cheS SI inobatsira kutumisa masimba anobva kuchigunwe chikuru sezvaanoendesa kusvika kumucheto wakadzika, uye achipfuura mu sacrum uye mumupanga.
Sangano reSI rinotapurawo kuyerwa kwepamusoro pamapfupa akagara (inonzi "ischial tuberosities"), panguva yekugara.
Movements of the SI Joint.
Sezvambotaurwa pamusoro apa, kunyange zvazvo chikamu chepamberi cheSIM chibatanidzwa chinoratidzirwa sangano re synovial, rine zvishoma zvishoma zvekufamba kune iyo. Izvi hazvishamisi kwekubatana kwe synovial. Chimwe chikonzero chekushambadzira kwakanyanya ndeyekubatana kwemahombekombe makuru ekusimbisa uye kutapira mutoro, izvo zvinodikanwa kugadzikana uye kushamwaridzana kwakasimba pakati pe sacrum neayamu.
Mhedziso yejojo ye sacroiliac inosanganisira:
- Zvose mapfupa emapfupa anotenderera mberi apo sacrum inoramba ichiiswa, inonzi anterior innominate tilt.
- Zvose mapfupa emapfupa anotenderera kumashure apo sacrum inoramba ichiiswa, inonzi posterior innominate tilt
- Imwe nyuchi inoputika mberi, imwe yacho inonamatira kumashure uye sacrum inoramba ichiiswa. Izvi zvinoitika kana iwe uchifamba uye unonzi "antagonistic innominate".
- The sacrum flexes, iyo inonzi kududzirwa.
- Iyo sacrum inowedzera, ichinzi counternation.
Zvakare kufambiswa kwekubatana kweS SI kwakaduku; zvakare, apo sacrum inofamba, mapfupa ehudyu anogonawo kufamba pamwe chete nayo.
> Sources:
> Kapandji, IA, "The Physiology of the Joints". Fifth Edition. Churchill Livingstone. Shanduro yeNyika Itsva 1987. New York.
> Moore, K., Dalley, A. Clinically Oriented Anatomy. Cheshanu. Muparidzi. Lippincott, Williams & Wilkins. 2006. Baltimore.
> Padzi-Goudzwaard A, Hoek van Dijke G, Mulder P, Spoor C, Snijders C, Stoeckart R .. The Iliolumbar ligament: iyo inoita kuti pave nekugadzikana kwekubatanidzwa kwe sacroiliac. Clin Biomech Feb. 2003 Feb.