ʻO ke kiʻi Orthopedic: ʻO ka "Terry Thomas Sign" a me ka Scapholunate Dissociation

ʻIke Radiographic: Ke loaʻa ka dissociation scapholunate a me ka haehae ʻana o ka ligament interosseous scapholunate, ʻo ka hiʻohiʻona anteroposterior o ka pulima a i ʻole ka hiʻohiʻona coronal ma CT e hōʻike ana i kahi ākea i hoʻonui ʻia ma waena o nā iwi scaphoid a me lunate, e like me kahi āpau niho sparse.

Ka Nānā ʻana i nā Hōʻailona: ʻO ka dissociation Scapholunate ke ʻano maʻamau o ka paʻa ʻole o ka pulima, i ʻike ʻia hoʻi ʻo ka scaphoid rotary subluxation. Hoʻokumu pinepine ʻia e ka hui pū ʻana o ka hoʻonui ʻana, ka ulnar deviation, a me nā ikaika supination i hoʻopili ʻia i ka ʻaoʻao ulnar palmar o ka pulima, e hopena ana i ka haki ʻana o nā ligaments e hoʻopaʻa i ka proximal pole o ka scaphoid, e alakaʻi ana i ka hoʻokaʻawale ʻana ma waena o nā iwi scaphoid a me lunate. Hiki ke haehae ʻia ka radial collateral ligament a me ka radioscaphocapitate ligament.

ʻO nā hana hana hou, nā ʻeha paʻa a me ka rotational, ka laxity ligament congenital, a me ka variance ulnar maikaʻi ʻole e pili pū ana me ka dissociation scapholunate.

Hoʻokolohua Kiʻi: X-ray (me ka hoʻohālikelike ʻana i nā ʻaoʻao ʻelua):

1. He mea kānalua ka dissociation o ka hakahaka scapholunate > 2mm; inā > 5mm, hiki ke ʻike ʻia.

2. Hōʻailona apo cortical scaphoid, me ka mamao ma waena o ka palena haʻahaʻa o ke apo a me ka ʻili pili proximal o ka scaphoid he < 7mm.