Iindaba - I-Orthopedic Imaging: "I-Terry Thomas Sign" kunye ne-Scapholunate Dissociation

I-Orthopedic Imaging: I "Terry Thomas Sign" kunye ne-Scapholunate Dissociation

UTerry Thomas liqhula elidumileyo laseBritani elaziwa ngokuba ngumsantsa obonakalayo phakathi kwamazinyo akhe angaphambili.

Kumonzakalo wesihlahla, kukho uhlobo lokwenzakala olubonakala ngeradiographic lufana negap yezinyo likaTerry Thomas. UFrankel ubhekisele kule nto ngokuthi "umqondiso weTerry Thomas," owaziwa nangokuthi "uphawu lwe-gap yezinyo."

Ukubonakala kwe-Radiographic: Xa kukho ukuchithwa kwe-scapholunate kunye nokukrazula kwe-scapholunate interosseous ligament, i-anteroposterior view of the wrist okanye i-coronal view kwi-CT ibonisa i-gap eyandisiweyo phakathi kwe-scaphoid kunye namathambo e-lunate, afana ne-gap yezinyo.

Uhlalutyo lweMiqondiso:I-scapholunate dissociation lolona hlobo luxhaphakileyo lokungazinzi kwesihlahla, okwakwaziwa ngokuba yi-scaphoid rotary subluxation. Ngokuqhelekileyo kubangelwa indibaniselwano yokwandiswa, ukuphambuka kwe-ulnar, kunye ne-supination forces esetyenziswe kwi-ulnar palmar side of wrist, okubangelwa ukugqabhuka kwe-ligaments ezinzisa i-proximal pole ye-scaphoid, ekhokelela ekuhlukaneni phakathi kwe-scaphoid kunye namathambo enyanga. . I-radial collateral ligament kunye ne-radioscaphocapitate ligament nayo inokukrazuka.

Imisebenzi ephindaphindiweyo, ukubamba kunye nokulimala okujikelezayo, i-congenital ligament laxity, kunye ne-negative ulnar variance nazo zihambelana nokuchithwa kwe-scapholunate.

Uvavanyo lomfanekiso: X-reyi (kunye nothelekiso lwamazwe amabini):

1. I-Gap ye-scapholunate> i-2mm iyakrokrela ukuhlukana; ukuba ngaphezulu kwe-5mm, inokufunyaniswa.

2. Uphawu lweringi ye-Scphoid cortical, kunye nomgama phakathi komda osezantsi weringi kunye nomgangatho odibeneyo we-scaphoid ngu-<7mm.

3. Ukunciphisa i-scaphoid.

4. Ukunyuka kwe-angle ye-scapholunate: Ngokuqhelekileyo, yi-45-60 °; i-angle ye-radiolunate> 20 ° ibonisa i-Dorsal Intercalated Segment Instability (DISI).

5. Uphawu lwePalmar "V": Kwimbonakalo eqhelekileyo yecala lesihlahla, imiphetho yesundu ye-metacarpal kunye ne-radial bones yenza imilo ethi "C". Xa kukho ukuguquka okungaqhelekanga kwe-scaphoid, i-palmar edge yayo inqumla kunye ne-palmar edge ye-radial styloid, yenze imilo ethi "V".