PDF(Pubmed)
Abstract：
BACKGROUND: Many benign and malignant tissue or bony lesions have been reported as causes of extrinsic or intrinsic posterior interosseous nerve (PIN) neuropathy at the proximal forearm/elbow region. The authors describe an unusual cause of external compression of the PIN due to a ganglion cyst arising from a radial neck pseudarthrosis (a false joint).
METHODS: Decompression of the PIN with the release of the arcade of Frohse was performed with resection of the radial head and the ganglion cyst. By 6 months postoperatively, the patient had a complete neurological recovery.
CONCLUSIONS: This case illustrates a previously unreported cause of extraneural compression of the PIN from a pseudarthrosis. The mechanism for compression in this case from the radial head pseudarthrosis is likely attributable to the sandwich effect, in which the PIN is sandwiched between the arcade of Frohse at the supinator from above and the cyst below.
METHODS: Decompression of the PIN with the release of the arcade of Frohse was performed with resection of the radial head and the ganglion cyst. By 6 months postoperatively, the patient had a complete neurological recovery.
CONCLUSIONS: This case illustrates a previously unreported cause of extraneural compression of the PIN from a pseudarthrosis. The mechanism for compression in this case from the radial head pseudarthrosis is likely attributable to the sandwich effect, in which the PIN is sandwiched between the arcade of Frohse at the supinator from above and the cyst below.
摘要：
背景：据报道，许多良性和恶性组织或骨病变是前臂/肘部近端外在或内在骨间后神经（PIN）病变的原因。作者描述了由于radial骨颈假关节（假关节）引起的神经节囊肿引起的PIN外部压迫的异常原因。
方法：通过切除radial头和神经节囊肿，在释放Frohse拱廊的同时对PIN进行减压。术后6个月，患者的神经系统完全恢复.
结论：该病例说明了一个以前未报告的由假关节引起的PIN神经外压迫的原因。在这种情况下，桡骨头假关节的压缩机制可能归因于三明治效应，其中PIN夹在上方的Frohse拱廊和下方的囊肿之间。
方法：通过切除radial头和神经节囊肿，在释放Frohse拱廊的同时对PIN进行减压。术后6个月，患者的神经系统完全恢复.
结论：该病例说明了一个以前未报告的由假关节引起的PIN神经外压迫的原因。在这种情况下，桡骨头假关节的压缩机制可能归因于三明治效应，其中PIN夹在上方的Frohse拱廊和下方的囊肿之间。
