I-capsule ehlangene yendawo iyingxenye yezicubu ezixhumeneyo ezihlanganisa futhi zivala ukuhlanganiswa kwesici (okubizwa nangokuthi i-zygapophysis noma i-zygapopsese joint) kusuka phezulu kuya phansi. Lezicubu ezixhumeneyo zenza uhlobo oluthile lwesigxobo esinamandla esithinta amathambo amabili enza isici esihlangene ndawonye.
Ngokusho kokucwaninga kwencazelo yesimo esasetshenziswe encwadini ka-July 2011 ye- Journal of Biomechanical Engineering , i-capsu joint capsule iphikisana nemibono yokuhlukunyezwa eyenziwa kulo lonke ihlangene lapho ijikeleza futhi / noma ihumusha.
Izinyathelo zokuhumusha yizo ezihamba ngokuqondile. Ukuhamba yisibonelo, kepha uma ukhuluma ngokunyakaza okuhlanganyelwe, incazelo isuke ehlakaniphile kakhulu. Kulesi simo, kubhekisela emgqeni (okungukuthi akukho ukushintshanisa noma ukuphikisana okuhilelekile) ukunyakaza komunye umthambo wesipelingi kufana nalokhu ngenhla noma ngezansi.
Kanye nazo zonke izinhlaka ezakha ukuhlanganiswa kwesici, i-capsule isiza ukudlulisa izinhlobo ezahlukene zemithwalo ngesikhathi kuhamba ukunyakaza okuhlukahlukene komgogodla.
I-vertebra ngayinye inezinhlanganiso ezine zezinhlangothi - ezimbili phezulu (ezibizwa ngokuthi izingxenye eziphezulu) nambili ngezansi (ezibizwa ngokuthi ama-facet low-side), ngakho-ke kukhona ama-capsules ahlangene amane we-facet ngayinye yethambo lomgogodla. Izicubu ezinama-fibrous of capsule zivimbela konke okuhlangene. Ngaphakathi ngaphakathi kokuhlanganiswa yimbani (okuthiwa i-synovial lining) eyenza uketshezi lwe-synovial. I-synovial fluid ifana ne-WD-40 yokujoyina - ibeka amathanjana amathambo ahlanganisa isici se-facet, kanye nesithuba phakathi kwabo, esiza ukukwenza ukuhamba okubushelelezi, okungahambisani nokungabikho kokuhlanganyela.
I-capsule ye-facet joint - kanye nezinye izici ze-joint - ihlinzekwa ngokunezinzwa - ezidlala indima ekuboneni ubuhlungu. Ucwaningo olunyatheliswa enkampanini ye-American Journal of Neuroradiology luthi indlela eyodwa yokwenza ubuhlungu emuva idalwe yi-stretch capsular. (Ababhali babuye bathi igama le-nerve impingement nokuvuvukala njengamanye ama-generators obuhlungu). Bathi ama-facet amalunga angase abe nemiphumela engama-45% wezinhlungu ezibuhlungu emuva emuva futhi afinyelele ku-55% amacala obuhlungu obungapheliyo entanyeni ngaphandle kokukhipha isifo.
Imithombo:
I-Bykowski, J., Wong, W., Indima yama-Facet Joints ku-Spine Pain ne-Treatment Guiding Treatment: Ukubuyekeza . I-AJNR.
I-Jaumard, N., Welch, W., Winkelstein, B. I-Spinal Facet I-Biomechanics Ehlangene no-Mechanotransduction ngezimo ezijwayelekile, ezilimazayo kanye nezidakamizwa. J Biomech Eng. Julayi 2011.
U-Schulte T., uFiller T., uStruwe P., uLiem D., uBullmann V. Amafolda e-Meniscoid e-Intra-articular ezithombeni ze-Thoracic Zygapophysial. Isiphetho. Mashi 15, 2010.