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METACARPO-PHALANGEAL JOINTS
The radial collateral ligament of the index finger is most vulnerable, although with a suitable force any ligament can be injured. The tension of the ligament is tested with the MP joint flexed (if extended, even a normal ligament is very lax!).
In children, the injury may be accompanied by a Salter–Harris III fracture at the base of the proximal phalanx.
A large bone fragment, if displaced, can be reattached from a palmar approach, using a tension band suture or small screw. Smaller fragments are treated by splintage with the MP joints flexed.
---from 《Apley’s System of Orthopaedics and Fractures》
重點詞彙整理:
collateral ligament側韌帶
/kəˈlætərəl/adj. 附屬的;旁系的;並行的n. 抵押品,擔保品;旁系親屬
百度翻譯:
掌指骨關節
食指的橈側副韌帶是最脆弱的,但只要用力適當,任何韌帶都可能受傷。韌帶的張力是在MP關節彎曲的情況下測試的(如果伸展,即使是正常的韌帶也會非常鬆弛!)。
對於兒童,損傷可能伴有近節指骨底部的Salter-HarrisⅢ型骨折。
大的骨碎片,如果移位,可以從手掌入路,使用張力帶縫線或小螺絲釘重新連接。較小的碎片用夾板固定,MP關節彎曲。
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