title: Ultrasound of the nerves of the knee region: Technique of examination and normal US appearance.
abstract: The diagnosis of disorders of the peripheral nerves (PN) has traditionally been based on clinical and electrophysiological data since nerve tissue cannot be visualized on standard radiographs. More recently, however, nerve structures have been evaluated with magnetic resonance imaging (MRI) and ultrasound (US). The former modality is expensive and not available in all institutions. There are also some contraindications to its use, and the assessment of long nerves can be time-consuming since different coils must be used. Thanks to recent advances in sonographic software and hardware, US can now be used for in-depth assessment of the PN of the upper and lower limbs.Most knee disorders involve lesions to the cruciate ligaments and/or the menisci, which are difficult to evaluate with US. However, similar symptoms may be caused by compression of one or more nerves in the knee region or intrinsic disorders involving these structures. Because of their superficial positions, the nerves around the knee can be clearly visualized with US. A thorough knowledge of the normal anatomy of this region and a careful scanning technique are essential for a successful diagnostic US examination. In this article, we will review the normal gross and microscopic anatomy of the nerves in the knee region, the US technique used for their examination, and their normal US appearance.
authors: Clinique et Fondation des Grangettes, Switzerland.
authors: S
authors: S
authors: Bianchi
authors: C
authors: C
authors: Martinoli
authors: X
authors: X
authors: Demondion
keywords: Knee; Peripheral nerves; Ultrasound
references: Radiographics. 2000 Oct;20 Spec No:S199-213; discussion S213-7
references: 11046171
references: Radiol Clin North Am. 1999 Jul;37(4):691-711, viii
references: 10442076
references: Neurosurgery. 1996 Oct;39(4):750-6; discussion 756-7
references: 8880769
references: Radiology. 1995 Oct;197(1):291-6
references: 7568840
references: J Ultrasound Med. 2002 Mar;21(3):315-22
references: 11883543
references: Am J Sports Med. 1989 Jul-Aug;17(4):478-81
references: 2782531
references: Clin Neurophysiol. 2004 Mar;115(3):495-507
references: 15036045
references: J Peripher Nerv Syst. 1996;1(3):169-78
references: 10970107
references: J Radiol. 2005 Dec;86(12 Pt 2):1869-78
references: 16308552
references: Am J Sports Med. 1990 Jan-Feb;18(1):41-2
references: 2301690
references: Eur J Neurol. 2004 May;11(5):305-14
references: 15142223
references: J Am Acad Orthop Surg. 2002 Mar-Apr;10(2):130-7
references: 11929207
references: Ultrasound Q. 2002 Dec;18(4):225-45
references: 12973095
references: Semin Ultrasound CT MR. 2000 Jun;21(3):205-13
references: 10994689
references: Eur Radiol. 2000;10(7):1043-50
references: 11003395
references: Arthroscopy. 2005 May;21(5):547-51
references: 15891719
references: Radiology. 1988 Apr;167(1):179-82
references: 3279453
references: Magn Reson Imaging Clin N Am. 1998 Feb;6(1):179-94
references: 9449748