ABSTRACT
We report four cases of posterior interosseous nerve paralysis with multiple constrictions. At surgery the constrictions were found between the arcade of Frohse and a point of bifurcation of the supinator motor branch. External neurolysis with epineurotomy using the microscope was performed in all cases, and full recovery was obtained.
Subject(s)
Hand/innervation , Nerve Compression Syndromes/complications , Paralysis/etiology , Adult , Constriction, Pathologic/complications , Constriction, Pathologic/pathology , Female , Humans , Male , Nerve Compression Syndromes/pathology , Nerve Compression Syndromes/surgery , Paralysis/pathology , Paralysis/surgeryABSTRACT
A case of a recurrent dislocation of the elbow joint in a 13-year-old female is described. The patient sustained a medial epicondylar fracture of the humerus and consulted us four months later. There was no deformity but marked lateral instability of the elbow was recognized. It could be fully flexed and hyperextended ca 20 degrees. The elbow joint could be easily dislocated by pronation of the hyperextended elbow. Roentgenogram demonstrated an apparent non-union of the medial epicondylar fracture. The fragment was repositioned so that the medial collateral ligament became taut. There was no recurrence of the dislocation ten months postoperatively.
Subject(s)
Elbow Injuries , Joint Dislocations/surgery , Adolescent , Female , Humans , Humeral Fractures/complications , Humeral Fractures/surgery , Joint Dislocations/etiology , RecurrenceABSTRACT
Spinal evoked potentials from cervical skin surface (surface spinal evoked potentials) were measured to evaluate spinal cord function as a convenient method that precludes inserting electrodes into the epidural space, and results were compared with those of the former epidural recording method. Surface spinal evoked potentials were obtained from cervical skin surface over the C3, C5, and C7 spinous processes after median nerve stimulation in 18 normal subjects and 37 patients with a cervical lesion. In normal subjects, surface spinal evoked potentials consisted of three negative waves (N1, N2, N3). Abnormal N2 (80%) and abnormal N3 (100%) were observed in cervical myelopathy, and abnormal N2 was observed only in radiculopathy; this allows for differentiation between myelopathy and radiculopathy. Comparing preoperative and postoperative surface spinal evoked potentials, it was seen that improvement of clinical symptoms was proportional to that of surface spinal evoked potentials.
Subject(s)
Spinal Cord Diseases/diagnosis , Spinal Cord/physiopathology , Spinal Nerve Roots/physiopathology , Adult , Electrodes , Electrodes, Implanted , Epidural Space , Evoked Potentials/physiology , Female , Humans , Male , Middle Aged , Neck , Peripheral Nervous System Diseases/diagnosisABSTRACT
Lumbar spondylolysis generally is considered to be a fatigue fracture of the pars interarticularis, and no unequivocal case of congenital spondylolysis has been reported. The authors describe 11 cases of unilateral spondylolysis (possibly congenital laminar defect associated with pars defect) of the upper lumbar spine. They have roentgenographic characteristics distinct from conventional spondylolysis of the lumbar spine, including hypoplasia of the spinal accessory process, rotation of the spinous process contralaterally to the spondylolysis, and prominent ipsilateral lamina. The anomaly found in these 11 patients probably is congenital, and its clinical significance is not known.
