Use of Vascularized Sural Nerve Grafts for Sciatic Nerve Reconstruction After Malignant Bone and Soft Tissue Tumor Resection in the Lower Legs

Injury of peripheral nerve may require reconstruction for motor and sensory function recovery. However, when the nerve defect is long, especially in the lower extremities, reconstruction with successful function recovery proved to be difficult. We documented a case of bilateral vascularized sural nerve graft repair of a large and long sciatic nerve defect following malignant tumor resection on posterior thigh. Although we were unable to achieve satisfactory outcomes in motor function recovery, we did accomplish some sensory function recovery.

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Reconstruction of Large Bone Defect after Bone and Soft Tissue Tumor Resection , using Jeat - Treated Autogenous Isotrophic Bone Graft

The Journal of the Korean Orthopaedic Association ◽

10.4055/jkoa.1995.30.5.1308 ◽

1995 ◽

Vol 30 (5) ◽

pp. 1308

Author(s):

Jong Seok Lee ◽

Dae Geun Jeon ◽

Ha Yong Kim ◽

Yong Hyeog Kang ◽

Dong Hwan Chung ◽

...

Keyword(s):

Soft Tissue ◽

Bone Graft ◽

Bone Defect ◽

Soft Tissue Tumor ◽

Tumor Resection ◽

Large Bone Defect ◽

Tissue Tumor ◽

Large Bone

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Intermuscular lipoma of the gluteus muscles compressing the sciatic nerve: an inverted sciatic hernia

Journal of Neurosurgery ◽

10.3171/2012.7.jns111714 ◽

2012 ◽

Vol 117 (4) ◽

pp. 795-799 ◽

Cited By ~ 5

Author(s):

Eudaldo M. López-Tomassetti Fernández ◽

Juan Ramón Hernández Hernández ◽

Jose Ceballos Esparragon ◽

Angel Turegano García ◽

Valentin Nuñez Jorge

Keyword(s):

Soft Tissue ◽

Sciatic Nerve ◽

Tumor Growth ◽

Soft Tissue Tumor ◽

Piriformis Muscle ◽

Irreversible Damage ◽

Transgluteal Approach ◽

Tissue Tumor ◽

Sciatic Hernia ◽

Benign Soft Tissue Tumor

The authors report the case of a 50-year-old woman with a benign intermuscular lipoma of the gluteus compressing the sciatic nerve in its course through the sciatic notch. This benign soft-tissue tumor extended into the pelvis, displacing the rectum laterally. Resection was necessary to alleviate symptoms and prevent irreversible damage of the nerve. Wide exposure of the piriformis muscle and sciatic nerve via a transgluteal approach allowed safe lesion removal, and thus avoiding a laparotomy to resect the intrapelvic extension of the tumor. This report features a curious case of soft-tissue tumor growth across the sciatic foramen forming an inverted sciatic hernia. The authors' proposed approach was simple and safe and avoided a laparotomy.

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Readout-segmented diffusion tensor imaging for assessing sciatic nerve invasion by soft tissue tumor

10.21203/rs.3.rs-127714/v1 ◽

2020 ◽

Author(s):

Gang Wu ◽

Shili Wang ◽

Chu Pan ◽

Ting Wang

Keyword(s):

Diffusion Tensor Imaging ◽

Soft Tissue ◽

Sciatic Nerve ◽

Soft Tissue Tumor ◽

Diffusion Tensor ◽

Soft Tissue Mass ◽

Tissue Mass ◽

Tissue Tumor ◽

Nerve Invasion ◽

Apparent Diffusion

Abstract There are few publications regarding feasibility of readout-segmented diffusion tensor imaging (rsDTI) in assessing nerve invasion by soft tissue tumor. 64 patients with soft tissue mass in upper leg suspected of sciatic nerve invasion underwent rsDTI. Nerve invasion was confirmed in 28 cases by operation or electromyogram. The sciatic nerve was better depicted with diffusion weighted map versus b = 0 map of rsDTI. Inter-reader agreement in using rsDTI to rate nerve invasion was excellent. Sensitivity and specificity of rsDTI in identifying nerve invasion were 93% (26/28) and 92% (33/36) respectively. Apparent diffusion coefficient (ADC) was significantly higher in invaded nerves versus normal nerves (1.45 ± 0.67 × 10− 3mm2/s vs. 1.39 ± 0.46 × 10− 3mm2/s, P༜0.05). DTI derived FA was significantly lower in invaded nerves versus normal nerves (0.22 ± 0.11 vs. 0.37 ± 0.13, P༜0.05). Readout-segmented DTI was feasible in assessing sciatic nerve invasion by soft tissue tumor in selected patients.

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