Ralph Jasper Mobbs

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BACKGROUND Patients suffering head trauma are at high risk of having a concomitant cervical spine injury. A rigid cervical collar is usually applied to each patient until spinal stability is confirmed. Hard collars potentially cause venous outflow obstruction and are a nociceptive stimulus, which might elevate intracranial pressure (ICP). This study tested(More)
BACKGROUND The main aims of managing thoracolumbar fractures involve stabilization of traumatized regions, to promote vertebral healing or segmental fusion. Recently, percutaneous pedicle screw fixation has evolved as an alternative approach for the treatment of thoracolumbar fractures, aiming to minimize soft tissue injury and perioperative morbidity. A(More)
OBJECTIVE Microvascular decompression may fail to relieve trigeminal neuralgia because a compressing vessel at the root entry zone may be overlooked during surgery. Alternatively, effective decompression may not always be achieved with the visualization provided by the microscope alone. We theorized that the addition of an endoscope would improve the(More)
Minimally invasive techniques in spinal surgery are increasing in popularity due to numerous potential advantages, including reduced length of stay, blood loss and requirements for post-operative analgesia as well as earlier return to work. This review discusses guidelines for safe implantation of percutaneous pedicle screws using an image intensifier(More)
Ossified ligamentum flavum (OLF) is being appreciated as an important cause of thoracic myeloradiculopathy. However, despite numerous epidemiological and basic science studies, the pathogenesis of OLF has not been conclusively established. Ossification and symptom development are significantly more frequent in the Japanese population, therefore supporting a(More)
An isolated posterior femoral cutaneous nerve lesion is rare. There have been seven reported cases to date. We report a 51-year-old male with pain in the posterolateral thigh, atypical from the classic anatomical description. Somatosensory evoked potentials were suggestive of a posterior femoral cutaneous nerve lesion. We describe our operative exposure and(More)
OBJECT The development of minimally invasive surgical techniques is driven by the quest for better patient outcomes. There is some evidence for the use of minimally invasive surgery for degenerative lumbar spine stenosis (LSS), but there are currently no studies comparing outcomes with matched controls. The object of this study was to compare outcomes(More)
BACKGROUND Intradiploic hematoma of the skull was first reported in 1934. The pathogenesis of this lesion is unclear. It is a very rare benign reactive process occurring after minor head trauma, with only seven cases reported in the literature to date. CASE DESCRIPTION A 3-year-old right hand dominant male presented with a non-tender parietal scalp(More)
Medical records of 363 patients who had a diagnosis of lumbar disc disease and were managed by a posterior approach lumbar discectomy over a 7 year period were reviewed: 33 patients had a preoperative diagnosis of diabetes, an incidence in this patient population of 9.1%. The results for these 33 patients who had a diagnosis of diabetes mellitus were(More)
This clinical study prospectively compares the results of open surgery to minimally invasive fusion for degenerative lumbar spine pathologies. Eighty-two patients were studied (41 minimally invasive surgery [MIS] spinal fusion, 41 open surgical equivalent) under a single surgeon (R. J. Mobbs). The two groups were compared using the Oswestry Disability(More)