![骨折鉴别诊断学](https://wfqqreader-1252317822.image.myqcloud.com/cover/606/27613606/b_27613606.jpg)
第二节 肩胛骨骨折
肩胛骨骨折约占全身骨折部位的0.91%。肩胛骨为不规则骨,其外侧有喙突、肩峰、关节盂3个突起,其相互重叠,局部骨折常规行X线片检查往往会出现误诊及漏诊,因此CT扫描是非常必要的,MR扫描对于肩关节周围肌腱及软组织损伤的诊断是必不可少的,特别是肩袖损伤和肩胛骨盂唇的损伤。肩胛骨骨折的AO/OTA分类分为关节外骨折、部分关节内骨折、完全关节内骨折,关节外骨折又分为肩峰骨折、喙突骨折、肩胛体骨折,肩峰骨折占肩胛骨骨折的9.52%,喙突骨折占肩胛骨骨折的3.40%,肩胛体骨折占肩胛骨骨折的43.54%。部分关节内骨折又分为关节盂前缘骨折、关节盂后缘骨折、关节盂下缘骨折,关节盂前缘骨折占肩胛骨骨折的4.59%,关节盂后缘骨折占肩胛骨骨折的3.06%、关节盂下缘骨折占肩胛骨骨折的3.74%。完全关节内骨折分为肩胛盂颈骨折、关节内骨折合并肩胛颈骨折、关节内骨折合并肩胛骨体骨折,肩胛盂颈骨折占肩胛骨骨折的25.34%,关节内骨折合并肩胛颈骨折占肩胛骨骨折的4.08%,关节内骨折合并肩胛骨体骨折占肩胛骨骨折的2.72%。
【受伤机制鉴别】
肩胛骨被很厚的肌肉所覆盖,这些肌肉为肩胛骨提供支撑与保护,肩胛骨受到间接暴力和直接暴力均可导致肩胛骨骨折,当患肢外展位摔倒时,暴力经过盂肱关节传导至肩胛骨,导致骨折发生。直接暴力多为交通伤或高处坠落伤,暴力直接作用于肩胛骨导致骨折,常合并胸部、头部及血管神经损伤,这些损伤往往较严重,常因重点关注合并损伤的诊治,而导致肩胛骨骨折漏诊。
病理骨折鉴别:
肩胛骨可因肿瘤等原因致其骨质破坏,出现病理性骨折,诊治时需要特别留意。
【症状和体征鉴别】
肩胛骨骨折的表现是疼痛、肿胀、活动受限,缺乏特异性,难以用于明确诊断。
由于肩胛骨位置深,软组织厚,骨折常没有明显的畸形,故没有畸形不能可以作为排除诊断的依据。
【影像学鉴别诊断】
肩胛骨有喙突、肩峰、关节盂3个突起,其相互重叠,对局部骨折常规X线片往往会误诊及漏诊,因此CT扫描对于像肩胛骨这样的不规则骨的骨折是非常必要的,MR扫描对于肩关节周围肌腱及软组织损伤的诊断是必不可少的,特别是肩袖的损伤和肩胛骨盂唇的损伤,有以下几点需临床及影像医师注意鉴别:①常规X线未见明确骨折征象,但临床症状、体征明显,应行CT或MR检查;②常规X线诊断为骨折但局部骨质结构紊乱,应密切结合临床病史,如为轻微外伤所致,应行CT或MR检查排除病理性骨折。
1.肩胛骨肩峰骨折与无骨折鉴别
1.1 X线片(图2-2-1A、B)
A.X线片显示右侧肩胛骨未见明确骨折征象,肩胛骨肩峰端骨小梁稍乱
B.示意图
1.2 CT检查(图2-2-1C~E)
C~E.CT横断面及重建显示肩胛骨肩峰端不规则,可见小骨片影(箭),骨片稍移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P56_313_387_734_809_210022.jpg?sign=1739356649-pwzKZxJrIwTjbifxFsfw68lmBJc5Gw5f-0-09a9fcdc4cda0fba10e0c6bf71b284f5)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P56_781_389_1199_808_210023.jpg?sign=1739356649-n83R3Tujzgrq9Ccz9128FgNtNWTU5D9g-0-a359c7f2b2542b98338f45334f62596f)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P56_312_1039_735_1461_210024.jpg?sign=1739356649-ogF31aBg5TGGzrgfECLZuDFSL1xHtMQL-0-c0aab447b7971f016a51e7736a2e61b8)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P56_779_1040_1200_1460_210025.jpg?sign=1739356649-Rki6xIj8d42fwhQCmJOD4BHKkIGz2bct-0-f8d60d762a9ba2df82715f42be20bc3e)
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图2-2-1 肩胛骨肩峰骨折与无骨折鉴别
2.肩胛骨肩峰基底骨折与肩胛冈骨折鉴别
2.1 X线片(图2-2-2A~D)
A、C.肩关节正位及Y形位X线片显示左侧肩胛冈与肩峰基底重叠处可见线样低密度影(箭),断端未见明显移位;B、D.示意图
2.2 CT检查(图2-2-2E、F)
E、F.CT横断面及重建显示肩胛骨肩峰基底骨质断裂(箭),断端未见明显移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P57_196_999_615_1417_598272.jpg?sign=1739356649-QadeUClJ7uiz2fnAvNfQHU2cjKBCDNvP-0-7e2c0b6cdd1d20b1d81f13ddc14bc0e8)
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图2-2-2 肩胛骨肩峰基底骨折与肩胛冈骨折鉴别
3.肩胛骨肩峰骨折与无骨折鉴别
3.1 X线片(图2-2-3A、B)
A.肩关节正位X线片显示左肩关节诸骨未见明确骨折
B.示意图
3.2 CT检查(图2-2-3C、D)
C、D.CT横断面及重建显示肩胛骨肩峰骨质断裂(箭),断端未见明显移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P59_194_387_616_809_211360.jpg?sign=1739356649-bEwgkvlmov2aCWSNqjmEPi9lX1m4fvtT-0-98700e6faa8b17de85b56ba264c74eaa)
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![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P59_193_1074_617_1496_211362.jpg?sign=1739356649-QXFUISFK4V4YUnc0K9Dl9EOy8x0nVvmT-0-f5819cc1c0c2e77bba76415717c7af74)
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图2-2-3 肩胛骨肩峰骨折与无骨折鉴别
4.肩胛骨肩峰移位骨折与无移位骨折鉴别
4.1 X线片(图2-2-4A、B)
A.肩关节正位X线片显示右侧肩胛骨肩峰处可见线样低密度影(箭),未见明显移位,肩胛骨喙突形态不规则
B.示意图
4.2 CT检查(图2-2-4C~E)
C~E.CT横断面及重建显示肩胛骨肩峰骨质断裂(箭),断端分离、移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P60_313_387_734_808_211796.jpg?sign=1739356649-cus2uYdN3T8DjAy5i3K7g1SyJeFBsqZB-0-3e415766f545b60d34c2dd0cce2ee9d7)
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图2-2-4 肩胛骨肩峰移位骨折与无移位骨折鉴别
5.肩胛骨喙突骨折与无骨折鉴别
5.1 X线片(图2-2-5A~D)
A、C.肩关节正位和穿胸位X线片显示右肱骨大结节骨质碎裂,不规则(箭),右肩胛骨喙突未见明显骨折征象;B、D.示意图
5.2 CT检查(图2-2-5E、F)
E、F.CT横断面及重建显示肱骨大结节骨质碎裂、塌陷(短箭),肩胛骨喙突骨质断裂(箭),断端稍分离
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P61_194_998_617_1419_212239.jpg?sign=1739356649-4Z3FYDrB3rysJWWSTf1OzAvmbMNqYLGW-0-45b7f70187b9e42782b345e343cd0282)
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![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P62_311_998_735_1420_212683.jpg?sign=1739356649-BDl9ykMlaRaSRIZAkuLxFdregXU9ZKlc-0-3e226a894f94608597f16b561245690e)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-5_212684.jpg?sign=1739356649-m15yO7e8St9WJ1BizUBfVnT3JKuifwaB-0-82af27c4aff90cd2a93a10237a11521b)
图2-2-5 肩胛骨喙突骨折与无骨折鉴别
6.肩胛骨喙突移位骨折与可疑骨折鉴别
6.1 X线片(图2-2-6A、B)
A.X线片显示右侧肩胛骨喙突形态欠规则,肩胛骨肩峰处可见线样低密度影
B.示意图
6.2 CT检查(图2-2-6C~E)
C~E.CT横断面及重建显示肩胛骨喙突骨质断裂(箭),断端有移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P63_195_388_615_808_213123.jpg?sign=1739356649-oxLwPESaqTff6LzNz1gaNuXMpWvPVMdp-0-3854e5a3e7d15d9ca2508988e476df90)
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图2-2-6 肩胛骨喙突移位骨折与可疑骨折鉴别
7.肩胛骨喙突基底骨折与可疑骨折鉴别
7.1 X线片(图2-2-7A、B)
A.X线片显示左侧肩胛骨喙突基底不规则,骨皮质不连续,肩胛骨上缘可见条形骨块
B.示意图
7.2 CT检查(图2-2-7C~E)
C~E.CT横断面及重建显示肩胛骨喙突基底骨质断裂(箭),断端移位不明显,骨折线累及肩胛骨上缘,关节盂未见骨折征象
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P64_312_1056_734_1477_213569.jpg?sign=1739356649-LkqaWEYds1ZJjFOfqjTbOjIJxLUSdoYe-0-ae62d16acd3dc24708e28922270c5bbb)
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图2-2-7 肩胛骨喙突基底骨折与可疑骨折鉴别
8.肩胛骨体骨折与无骨折鉴别
8.1 X线片(图2-2-8A~D)
A、C.肩关节正位及穿胸位X线片显示左侧肩胛骨未见明显骨折征象;B、D.示意图
8.2 CT检查(图2-2-8E、F)
E、F.CT横断面显示肩胛骨体骨质断裂(箭),断端有移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P66_311_387_735_810_214015.jpg?sign=1739356649-SBRvgYPgar7Y5wR3jZLIa7Vs7Ir3AVhC-0-249ef4bdcf0b3f8f099b5e3a7d7da9cf)
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![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-8_214867.jpg?sign=1739356649-TPKnJYZ625wDi2CTffob3AYImKkRXVCD-0-c2fde191f7ba54580c5eea592ed84eeb)
图2-2-8 肩胛骨体骨折与无骨折鉴别
9.肩胛骨下角骨折与无骨折鉴别
9.1 X线片(图2-2-9A、B)
A.肩关节正位X线片显示右侧肩胛骨未见明显骨折征象
B.示意图
9.2 CT检查(图2-2-9C~E)
C~E.CT横断面及重建显示肩胛骨下角斜形骨质断裂(箭),断端有移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P67_193_1084_619_1507_214868.jpg?sign=1739356649-mues540QICyI7ai5Y7xPd6E4JMaVrFBZ-0-f6b029bfd0917202c98b9171d6745895)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P67_662_1086_1081_1507_214869.jpg?sign=1739356649-SZaF49e11Ek8L4eG18AovmO8Ok6AJ6DS-0-3d580e112580e2a131c9bc362672e596)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P68_312_316_736_740_215297.jpg?sign=1739356649-PPni8UOvfJddkXhVJSDkJpbzreQVpYiH-0-85f374949f751a18217abbfbd25ac3c8)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P68_779_317_1201_741_215298.jpg?sign=1739356649-6iEvR3YWuhiTbRShaSyJHrz7ezXFXJ6F-0-5da8bd2a4b9dfb87d0c20a4abedfc090)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-9_215299.jpg?sign=1739356649-udTP0tGtoiTeObZbhUHxYqMBASFb70V2-0-0513ea5253127956377f24b7dc120352)
图2-2-9 肩胛骨下角骨折与无骨折鉴别
10.肩胛骨体粉碎骨折与简单骨折鉴别
10.1 X线片(图2-2-10A、B)
A.肩关节正位X线片显示右侧肩胛骨体骨质断裂(箭),断端嵌插
B.示意图
10.2 CT检查(图2-2-10C~E)
C~E.CT横断面及重建显示肩胛骨体骨质碎裂(箭),可见多个骨块影,断端移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P69_195_388_616_809_215741.jpg?sign=1739356649-793HiSqXPeWSu1L4Kg3v1S15PELk2qFg-0-6e6897836063b3bf4e6d91d82e249437)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P69_662_389_1082_811_215742.jpg?sign=1739356649-AMLLyzQi4MuAqrLxrd0nDhv94jm4cLUA-0-b001b10d916683986d19005badc96703)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P69_195_1063_616_1484_215745.jpg?sign=1739356649-tSrzdc8nIFW6bwsY71eumjT3UBxTvM33-0-bd9c1b3a6b365161126402af4528696e)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P69_663_1063_1081_1485_215743.jpg?sign=1739356649-Cora2pCmrHeckuhNs5aRrSDCfudxhwpW-0-5f464e02443ef985f3c6248bc3703845)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-10_216197.jpg?sign=1739356649-O8tjG3SHpzCj7dqfPRTbiNvdBPvW9qZM-0-b15ccd9369fe5fdeb9c5e70a678c60df)
图2-2-10 肩胛骨体粉碎骨折与简单骨折鉴别
11.肩胛骨关节盂骨折与可疑骨折鉴别
11.1 X线片(图2-2-11A、B)
A.肩关节正位X线片显示左侧肩胛骨关节盂边缘不规则(箭),似可见骨块影
B.示意图
11.2 CT检查(图2-2-11C~E)
C~E.CT横断面及重建显示肩胛骨关节盂前缘骨质碎裂(箭),关节面不规则
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P70_313_1064_734_1485_216198.jpg?sign=1739356649-zG1HkTKEgcyWD0H0Smsw13h9WF1VEqFv-0-eef586b2812bfd4ca38c20457c3558b3)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P70_781_1065_1201_1486_215770.jpg?sign=1739356649-b5D2U70xr2ZwR1RGFkFvDYWviMFdrRAx-0-d0cd6d99a192b0f79f70eb7647a0dd5b)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P71_195_388_616_809_216630.jpg?sign=1739356649-Cyt0J6HFTQG3qaIgaAitsxsa5nIRBrgN-0-4bc07297c5e5296f87786b72856de7cd)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P71_662_388_1082_809_216631.jpg?sign=1739356649-ahRX1sUTm6EOhlOHOBb4s3roaEflnOxT-0-74a66c85243225b3c381127a03b332e6)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-11_216632.jpg?sign=1739356649-wQaefFSzEzaaowPWm0DKaGa1yAnCm9pJ-0-49db1c139621eb2ee5bb708448957b9f)
图2-2-11 肩胛骨关节盂骨折与可疑骨折鉴别
12.肩胛骨关节盂移位骨折与可疑骨折鉴别
12.1 X线片(图2-2-12A、B)
A.肩关节正位X线片显示肩胛骨关节盂边缘欠规则(箭)
B.示意图
12.2 CT检查(图2-2-12C)
C.CT横断面显示肩胛骨关节盂后缘骨质碎裂(箭),关节面不连续,有移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P72_312_387_735_810_217064.jpg?sign=1739356649-rk1cN3U3Es9zLRZE7hRPcHb6XE5M3wST-0-a516b0b68cc7f43ebbc8b9ad870d0da3)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P72_780_387_1199_812_216648.jpg?sign=1739356649-XPFAhogjM8pCZwzAZWC9e2Vr5iuTHK5R-0-61174575c298390e75960480a44b3aaf)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-12_217065.jpg?sign=1739356649-DX7H72Ij4jtjubbI5DOh6aFDM6B0kur3-0-22b9f05cc32e041d15d74b3f0ae47b36)
图2-2-12 肩胛骨关节盂移位骨折与可疑骨折鉴别
13.肩胛骨关节盂及体部移位与可疑骨折鉴别
13.1 X线片(图2-2-13A~D)
A、C.肩关节正位及穿胸位X线片显示肩胛骨关节盂及肩胛骨体部似见线样稍低密度影(箭);B、D.示意图
13.2 CT检查(图2-2-13E~H)
E~H.CT横断面及重建显示肩胛骨关节盂骨质断裂(箭),骨折线累及关节面及肩胛骨体,断端稍分离、移位
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P73_194_387_617_811_217497.jpg?sign=1739356649-IgCGeLx8VdceeD7JQVLtvTIIG4fKDNpn-0-0ba128f33f9cd0a835592939e9a9d984)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P73_663_389_1082_808_217498.jpg?sign=1739356649-sM0idulL7IJ86FPX1YXFDkLbRC9zcLDF-0-9f216c89be01bd62766575d1e7148a9b)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P73_194_856_615_1277_217499.jpg?sign=1739356649-OWeOxeUX5LOu0wHU4UHkNrFGlZvvWS0n-0-6f33a6b83913e29d7f8dbf067a0de06d)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P73_665_854_1082_1276_217500.jpg?sign=1739356649-lua7Pfh3mFfsj1207dCCP3pPrFz2PrJF-0-362a0a0736726da0fe10a8d2d93f83ce)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P74_313_386_733_808_217935.jpg?sign=1739356649-tnae8JpV0oNUOq0k12eoiZqUGEFO8rP6-0-b1dd9b6c05c6d08d8edfbd15298f2de6)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P74_779_387_1202_810_217936.jpg?sign=1739356649-m4kConHzyuvDDpwiIAxd8y6yqvg6rhNe-0-cc87c8e467d656468d5fd0b11a1b0cb6)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P74_313_855_735_1276_217937.jpg?sign=1739356649-hsjAEyS7uKdRdSAalOl5CfzGbwml1sas-0-b52b330d2d4049575421ad605553a228)
![](https://epubservercos.yuewen.com/D8805F/15859876205053106/epubprivate/OEBPS/Images/P2-2-13_217938.jpg?sign=1739356649-HnrSMRnGemZ5FABEJ0kbKGHadTmvguKb-0-f8d986671561ccfd4f8114138479463a)
图2-2-13 肩胛骨关节盂及体部移位与可疑骨折鉴别