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Young and Burgess分型(1) (APC) (前方應力骨折)
ANTEROPOSTERIOR COMPRESSION (APC) INJURIES
The 『open book』 pattern appears as either diastasis of the pubic symphysis or fracture(s) of the pubic rami; as the pelvis is sprung open, the posterior (sacroiliac) elements also are strained. This general pattern is subclassified according to the severity of the injury:
In APC-I injuries there may be only slight (less than 2 cm) diastasis of the symphysis; however, although invisible on x-ray, there will almost certainly be some strain of the anterior sacroiliac ligaments. The pelvic ring is stable.
In APC-II injuries diastasis is more marked and the anterior sacroiliac ligaments (often also the sacrotuberous and sacrospinous ligaments) are torn. CT may show slight separation of the sacroiliac joint on one side. Nevertheless, the pelvic ring is still stable.
In APC-III injuries the anterior and posterior sacroiliac ligaments are torn. CT shows a shift or separation of the sacroiliac joint; the one hemi-pelvis is effectively disconnected from the other anteriorly and from the sacrum posteriorly. The ring is unstable.
---from 《Apley’s System of Orthopaedics and Fractures》
重點詞彙整理:
diastasis of the pubic symphysis恥骨聯合分離
diastasis /dai'æstəsis/n.;脫位;分離;心休息期
subclassify /sʌb'klæsifai/vt. 將…歸入;被細分類的
the one hemi-pelvis is effectively disconnected from the other anteriorly and from the sacrum posteriorly. 一側半骨盆在前方和骶骨後方有效地分離。
百度翻譯:
前骨壓縮(APC)損傷
「開卷」模式表現為恥骨聯合的散發或恥骨支骨折;骨盆張開時,骶髂後部的成分也會受到拉伸。根據損傷的嚴重程度,將此通用模式分為以下類別:
APC-I損傷中,聯合的舒張可能只有輕微(小於2 cm);然而,儘管x線上看不見,但幾乎肯定會出現骶髂前韌帶的一些應變。骨盆環穩定。
APC-II損傷中,舒張酶更為明顯,骶髂前韌帶(通常也包括骶凸和骶棘韌帶)被撕裂。CT可顯示一側骶髂關節輕微分離。然而,骨盆環仍然穩定。
在APC-III損傷中,骶髂前韌帶和後韌帶撕裂。CT顯示骶髂關節移位或分離;一個半骨盆有效地與另一個前、後骶斷開。戒指不穩定。
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