the cranial nerve involved 25% of the time. Lab findings show positive antibodies to GM1 ganglioside in 40% to 50% of cases. Conclusions: Documented here is a case of polyradicular neuropathy following infection resulting in progressive weakness without sensory changes. Treatment is IVIG and/or plasmapheresis. Key Words: Radiculopa- thy; Rehabilitation. Poster 61 Transposition of the Lateral Antebrachial Cutaneous Nerve Fol- lowing Biceps Tendon Repair: A Case Report. Jeffry R. Beer, MD (Kessler Institute for Rehabilitation, West Orange, NJ); Casey J. O’Donnell, MD. Disclosure: J.R. Beer, None; C.J. O’Donnell, None. Setting: Outpatient musculoskeletal practice. Patient: A 47-year- old man with left elbow and lateral forearm pain. Case Description: The patient presented 6 years following a left biceps tendon repair with persistent numbness and tingling in the left lateral forearm and hand, suggesting a lesion of the left lateral antebrachial cutaneous nerve (LACN). Nerve conduction studies in the upper extremities were performed to confirm our clinical diagnosis. Assessment/Results: Initially, a left LACN response was absent when stimulation was performed over the lateral aspect of the antecubital fossa. A normal right LACN response was elicited using the same technique. However, after recording over the left lateral forearm and stimulating over the medial aspect of the left antecubital fossa, a normal LACN response was obtained. Discussion: The nerve conduction study findings indi- cated that the LACN was transposed, likely during the operative procedure, from the lateral to the medial aspect of the antecubital fossa. LACN injury is an established complication following biceps tendon repair. However, to our knowledge, this is the first reported case of transposition of the nerve following this procedure. Conclu- sions: When attempting to elicit an LACN response, especially fol- lowing biceps tendon repair, the electrodiagnostician should remain aware of this possibility. Stimulation over the medial antebrachial area should always be performed when lateral antebrachial stimulation fails to produce a normal response. Key Words: Electrodiagnosis; Muscu- locutaneous nerve; Neural conduction; Rehabilitation. Poster 62 Neurologic Injury Associated With Pelvic Fracture: Radiologic and Electromyographic Evaluation and Relationship to Pain and Functional Outcome. Anthony Chiodo, MD (University of Michi- gan Hospital, Ann Arbor, MI). Disclosure: A. Chiodo, None. Objectives: To study the electrodiagnostic presentation of patients with lower-extremity nerve injury related to pelvic fracture; to assess if there is a relationship between fracture type and electrodiagnostic presentation; to assess functional outcome and correlation to fracture type and electrodiagnostic data; and to study the incidence of pain postinjury and the relationships between injury type and electrodiag- nostic evaluation and pain type. Design: Retrospective review. Set- ting: Tertiary care university hospital. Participants: 78 patients who presented with lower-extremity nerve injury associated with pelvic fracture. Interventions: Not applicable. Main Outcome Measures: Electromyogram results; the relationship between electrophysiologic presentation and fracture or injury type; and gait and pain outcomes. Results: The characteristic neurologic injury in patients with pelvic fractures was a lumbosacral plexus injury. Sciatic nerve injuries were more common in patients with isolated acetabular fractures. Neuro- logic outcome was related to electrodiagnostic study abnormality and severity. Functional outcome was best predicted by abnormalities in peroneal motor nerve conduction and anterior tibialis needle exami- nation. Neuropathic pain was seen in patients with any degree of gait abnormality. Orthopedic pain was seen in patients with an acetabular fracture. Conclusions: Lumbosacral plexus injury after pelvic fracture is a characteristic disorder that commonly is associated with severe long-term implications from the standpoint of pain and functional outcome. Better understanding of the interaction of injury mechanism, fracture type, and neurologic impairment will allow for better preven- tion and better understanding of the functional outcome of these injuries. Key Words: Electromyography; Lumbosacral plexus; Pelvis; Rehabilitation. Poster 63 Replication of a Novel Technique for Motor Conduction of the Serratus Anterior Muscle and Long Thoracic Nerve in a Pediatric Patient: A Case Report. Eric L. Altschuler, MD, PhD (UMDNJ, Newark, NJ); Ariz Mehta, MD. Disclosure: E.L. Altschuler, None; A. Mehta, None. Setting: Tertiary care university hospital. Patient: An 11-year-old girl. Case Description: The patient was referred for electrodiagnostic studies for a unilateral “shoulder problem.” The family reported birth trauma. The patient had complaints of difficulty with some movements of the shoulder of the affected arm. She was healthy and normal except for the affected arm. In that arm, sensation and strength was intact except for poor external rotators of the shoulder. Assessment/Results: We thought that the novel conduction study of the serratus anterior muscle and long thoracic nerve described by DePalma et al might be useful in studying root versus upper brachial plexus as the site of the patient’s lesion: in a plexus lesion, one would expect normal studies from the serratus anterior muscle as the long thoracic nerve comes directly off the cervical roots before the brachial plexus. Our findings revealed a right serratus compound muscle action potential distal motor latency (average of 3 stimulations) of 2.15ms on the unaffected side and 2.05ms on the affected side, and an amplitude of 2.1mV on the unaffected side and 1.4mV on the affected side. The values of these latencies and amplitudes and the side-to-side differences were within the normal true ranges found by DePalma. As well, our wave forms had an initial positive deflection, as did those of DePalma. Discussion: We have replicated in a pediatric patient the novel motor conduction technique of DePalma. As in our case, the novel and easy-to-perform technique for study of the serratus anterior may be useful in assessing questions of upper cervical root versus upper trunk of the brachial plexus lesions. Conclusions: In adults or pediatric cases, the technique of DePalma is a useful addition to the electrdiagnostician’s armamen- tarium. Key Words: Brachial plexus; Electrodiagnosis; Pediatrics; Rehabilitation. Poster 64 Correlation of Clinical Findings, Electrodiagnosis, and Magnetic Resonance Imaging Study in Cervical Roots Lesion. Seyedman- soor Rayegani, MD (Shohada Medical Ctr, Shaheed Beheshti Medical University, Tehran, Iran); Laili Shahgholi, MD; Mostafa Mohseni, MD; Mohamadhasan Bahrami, MD; Alireza Rajaei, MD; Bahram Jafroodi, MD. Disclosure: S. Rayegani, None; L. Shahgholi, None; M. Mohseni, None; M. Bahrami, None; A. Rajaei, None; B. Jafroodi, None. Objective: To determine the correlation between clinical findings and magnetic resonance imaging (MRI) and electrodiagnostic studies in the diagnosis, determination of severity, and differential diagnosis of cervical radiculopathy. Design: Cross-sectional analysis. Setting: E27 ACADEMY ANNUAL ASSEMBLY ABSTRACTS Arch Phys Med Rehabil Vol 88, September 2007