Study of the anatomical position of the femoral nerve by magnetic resonance imaging in patients with fractured neck of femur: relevance to femoral nerve block
| Autor: | Margaret M. Coleman, Mary Egan, Dominic Harmon, James M. Crotty, Shehzad Mehmood |
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| Rok vydání: | 2010 |
| Předmět: |
Male
medicine.medical_specialty Femoral artery Standard anatomical position Femoral nerve medicine.artery medicine Humans Femur Prospective Studies Pubic tubercle Aged medicine.diagnostic_test business.industry Nerve Block Magnetic resonance imaging Anatomy Magnetic Resonance Imaging Femoral Neck Fractures body regions Anesthesiology and Pain Medicine medicine.anatomical_structure Orthopedic surgery Ligament Female business Femoral Nerve |
| Zdroj: | Journal of Clinical Anesthesia. 22:122-125 |
| ISSN: | 0952-8180 |
| Popis: | Study Objective To determine the anatomical location of the femoral nerve in patients who have sustained fracture of the neck of femur, and its relevance to femoral nerve block technique. Design Prospective, observational clinical study. Setting Orthopedic and Radiology departments of a regional hospital. Subjects 10 consecutive adult ASA physical status II and III patients (mean age, 78.5 yrs) and 4 adult healthy volunteers. Interventions A T1 magnetic resonance imaging scan was performed of both upper thighs in patients and healthy volunteers successfully. Measurements The distance (mm) between the midpoint of the femoral artery and the midpoint of the femoral nerve, and the distance of the femoral nerve from the skin was measured at the mid-inguinal ligament, the pubic tubercle, and at the mid-inguinal crease. Data are shown as means (SD). Differences between both sides were compared using paired Student's t-tests. P Main Results In patients the mean distance (mm) between the midpoint of the femoral nerve from the midpoint of femoral artery at the mid-inguinal crease on the fractured and non-fractured sides was 10.7 and 11.0, respectively ( P = 0.87). The mean distance (mm) between the midpoint of the femoral nerve from the midpoint of the femoral artery at the mid-inguinal ligament on the fractured and non-fractured sides was 9.64 and 12.5, respectively ( P = 0.03). The mean distance (mm) between the midpoint of the femoral nerve from the midpoint of the femoral artery at the pubic tubercle on the fractured and non-fractured sides was 8.74 and 10.49, respectively ( P = 0.18). Conclusions Blockade of the femoral nerve may be easier to perform at the mid-inguinal crease in patients with fractured neck of femur. |
| Databáze: | OpenAIRE |
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