Biomedical subjects

Craig Goodmurphy

Publications and source records attributed to Craig Goodmurphy.

3 recordsLinked to original sources

PubMed2006

Cadaver evaluation of EMG needle insertion techniques used to target muscles of the thorax.

STUDY DESIGN: Measure the accuracy of needle insertion in thoracic muscles of human cadavers. OBJECTIVES: Evaluate the effectiveness of known EMG techniques for sampling thoracic innervated muscles. SUMMARY OF BACKGROUND DATA: The evaluation of thoracic radiculopathies requires accurate electrodiagnostic techniques for evaluating the thoracic myotomes. METHODS: An American Board of Electrodiagnostic Medicine certified physician placed needles into pertinent muscles of the thorax and an anatomist serving as a blinded dissector recorded the path and accuracy of needle. RESULTS: Needle examination of thoracic muscles was as accurate as limb needle examination. No notable risks are noted in multifidus sampling. However, in the cadaver, some risks were noted in association with placements in the intercostal muscles. The target muscle was reliably sampled, but the rib or vertebral level was difficult to landmark in the cadaver. CONCLUSIONS: Needle examination of the thoracic multifidus and intercostals is reliable, although further confirmation is needed to accurately verify the appropriate vertebral or rib level being sampled.

Adult↗

PubMed2006

Diaphragm needle placement techniques evaluated in cadaveric specimens.

OBJECTIVE: To evaluate the safest and most accurate method of diaphragm needle placement for electromyography. DESIGN: Single blinded study. SETTING: University anatomy laboratory. CADAVERS: Five cadavers. INTERVENTIONS: Needle placement in the diaphragm by an American Board of Electrodiagnostic Medicine physician, blinded dissection by a doctoral candidate anatomist. MAIN OUTCOME MEASURES: Accurate needle placement in the diaphragm, proximity or penetration of organs, vessels, or nerves, defined as cautions (proximity) and dangers (penetration). RESULTS: The anterior axillary approach was most accurate at the above-the-seventh and eighth-rib locations. The risk of dangers of needle placement in the diaphragm was greater on the right than left side. CONCLUSIONS: Needle placement in the diaphragm is safe and most accurate at the anterior axillary line superior to the eighth rib. If the side of needle placement does not matter for the study being done, the left side should be chosen because it leads to a lower risk of danger to the patient.

Cadaver↗

PubMed2005

Cadaveric study of methods for subscapularis muscle needle insertion.

OBJECTIVE: To evaluate the accuracy for three methods for needle insertion into the subscapularis muscle for electromyography, botulinum toxin injection, and phenol nerve block. DESIGN: Three needle insertion methods were evaluated by cadaver injection by an American Board of Electrodiagnostic Medicine certified physician. An anatomist, blinded to the method used, served as the dissector to evaluate the effectiveness of the methods tested. RESULTS: A posterior axillary approach was most effective for needle insertion into the subscapular muscle compared with a medial scapular or a superior scapular approach. No approach was ideal for subscapular nerve injection. CONCLUSIONS: A posterior axillary approach is best for needle insertion of the subscapularis muscle for electromyography or botulinum toxin injection. Subscapular nerve injection is difficult from all of the three approaches tested.

Adult↗