Sciatic nerve: paradoxic hypertrophy after amputation in young patients.

Hill, Suvimol; Baker, Albert Rufus; Barton, Nicholas; Wexler, Leonard H.; Scott, Lisa

doi:10.1148/radiology.205.2.9356645

Cited by 10 publications

(19 citation statements)

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“…HILL et al did not mention enhancement of the hypertrophied sciatic nerves, but a heterogeneous enhancement pattern was reported for amputation neuromas (4,8). Focal enhancement of the nerve could be misinterpreted as a recurrent metastatic lesion, but examining the nerve tissue along its full length is important for excluding recurrent lesions.…”

Section: Discussionmentioning

confidence: 99%

Paradoxic hypertrophy of the sciatic nerve in adult patients after above-knee amputation

Kerimoğlu

Canyiğit

2007

Acta Radiol

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Paradoxic hypertrophy of nerve tissue at an amputation stump without neuroma formation rarely develops in young patients, in contrast to atrophy of the nerve in older patients. Herein, we present the magnetic resonance imaging (MRI) findings of adult patients (older than 20 years old) who underwent above-knee amputation, one of whom had a palpable mass suggesting a recurrent lesion. MRI ruled out the recurrent lesion and demonstrated paradoxic hypertrophy of the sciatic nerve in all patients.

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Section: Discussionmentioning

confidence: 99%

Paradoxic hypertrophy of the sciatic nerve in adult patients after above-knee amputation

Kerimoğlu

Canyiğit

2007

Acta Radiol

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“…Rarely, paradoxical sciatic nerve stump hypertrophy can develop in young patients who underwent limb amputation, in contrast to neural atrophy, which is characteristic in older patients [33,34] (Figure 9). Residual limb pain post amputation is often referred to as ''stump pain'' and has been described in up to 60% of patients [35].…”

Section: Miscellaneousmentioning

confidence: 99%

Review of the principal extra spinal pathologies causing sciatica and new MRI approaches

Ailianou¹,

Fitsiori²,

Syrogiannopoulou³

et al. 2012

BJR

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ABSTRACT. In this paper we illustrate the principal extraspinal pathologies causing sciatica and new approaches for the study of structures such as the lumbosacral plexus (LSP). Visualisation of the LSP in its entirety is difficult with conventional twodimensional MRI sequences owing to its oblique orientation. In our institution, we have found that the utilisation of three-dimensional short tau inversion-recovery sampling perfection with application-optimised contrasts using different flip angle evolutions sequence is helpful, allowing multiplanar and maximum intensity projection reconstructions in the coronal oblique plane and curvilinear reformats through the plexus. Diffusion tensor imaging enables the observation of microstructural changes and can be useful in surgical planning. The normal anatomy of the LSP, its different extraspinal pathologies and differential diagnoses are thoroughly presented.

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“…Paradoxic sciatic nerve hypertrophy has been reported following lower limb amputation for malignant [1] and nonmalignant [2] conditions. Nerve hypertrophy is greatest near the transection site and extends proximally.…”

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confidence: 99%

“…Nerve hypertrophy is greatest near the transection site and extends proximally. It is termed paradoxical because proximal nerve atrophy usually ensues after transection [1]. Larger nerve diameters are associated with higher amputation level and longer duration after surgery, but not with pain complaints.…”

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confidence: 99%

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Paradoxic hypertrophy of the sciatic nerve

Guillerman

2010

Pediatr Radiol

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Sciatic nerve: paradoxic hypertrophy after amputation in young patients.

Abstract: Hypertrophy of the sciatic nerve occurred after above-knee amputation in young patients. This finding differed from atrophy of the nerve that has been reported previously in older patients.

Cited by 10 publications

References 0 publications

Paradoxic hypertrophy of the sciatic nerve in adult patients after above-knee amputation

Paradoxic hypertrophy of the sciatic nerve in adult patients after above-knee amputation

Review of the principal extra spinal pathologies causing sciatica and new MRI approaches

Paradoxic hypertrophy of the sciatic nerve

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