Neurosurg Focus
-
The percentage of patients responding to conservative treatment for cervical radiculopathy secondary to nerve root compression is not well quantified. To clarify this question, the authors retrospectively reviewed the records obtained over a 4-year period in patients with cervical radiculopathy to determine their response to conservative measures (cervical collar therapy and halter cervical traction). ⋯ Cervical radiculopathy was diagnosed in patients if they suffered from radiating arm pain made worse by neck movement and at least one of the following: reflex loss, dermatomal numbness, and/or myotomal weakness. Patients with neck pain alone or arm pain without neurological deficit were excluded from analysis. Those patients without excruciating pain, severe weakness, or evidence of myelopathy were offered a course of halter traction before surgery was to be considered. Ninety-six patients met the inclusion criteria; there were 61 males and 35 females, and the mean age was 47 years. Fifty-five patients presented with C-7, 37 with C-6, two with C-5, and two with C-8 radiculopathy. Eighty-one patients underwent a trial of traction that consisted of wearing a cervical collar and home-based halter cervical traction: 8 to 12 pounds, applied for 15 minutes, three times a day for 3 to 6 weeks The mean duration of symptoms prior to neurosurgical evaluation was 43 days +/- 8.3 days (standard deviation). Sixty-three (78%) of 81 patients responded to therapeutic traction, experiencing significant or total pain relief, three could not tolerate the traction, and traction failed in 15 patients. Of the 81 patients in whom traction was undertaken, 78 underwent magnetic resonance imaging prior to being seen, which revealed herniated discs at the corresponding levels in 71 and foraminal stenosis in seven. Three of the 63 patients in whom an initial response to traction was noted suffered recurrence of symptoms and required surgery. It would appear that in patients in whom symptoms of cervical radiculopathy were present for approximately 6 weeks that 75% will respond to further conservative treatment (halter traction and cervical collar) over the next 6 weeks.
-
Randomized Controlled Trial Comparative Study
Comparative evaluation of microdiscectomy only, autograft fusion, polymethylmethacrylate interposition, and threaded titanium cage fusion for treatment of single-level cervical disc disease: a prospective randomized study in 125 patients.
The need for interbody fusion or stabilization after anterior cervical microdiscectomy is still debated. The objectives of this prospective randomized study were 1) to examine whether combined interbody fusion and stabilization is more beneficial than microdiscectomy only (MDO) and 2) if fusion is found to be more beneficial than MDO, to determine which is the best method of fusion by comparing the results achieved using autologous bone graft (ABG), polymethylmethacrylate (PMMA) interposition, and threaded titanium cage (TTC). ⋯ Interbody cage-assisted fusion yields a significantly better short- and intermediate-term outcome than MDO in terms of return to work, radicular pain, Odom criteria, and earlier fusion. In addition, the advantages of interbody cages over ABG fusion included better results in terms of return to work, Odom criteria, and earlier fusion after 6 months. These results suggest that interbody cage-assisted fusion is a promising therapeutic option in patients with single-level disc disease. Polymethylmethacrylate seems to be a good alternative to interbody cage fusion but is hindered by the absence of immediate fusion.
-
Comparative Study
Early results using the Atlantis anterior cervical plate system.
The authors present a retrospective review of 77 patients in whom they performed anterior cervical discectomy and fusion (ACDF) in the treatment of radiculopathy and/or myelopathy. In all cases anterior interbody fusion was performed using the Atlantis locking plate system to treat the degenerative disease. ⋯ These initial results indicate that use of the Atlantis plate system for anterior cervical arthrodesis produces fusion rates and clinical outcomes that are comparable with those obtained using other locking plating systems. It has the unique advantage, however, of providing the surgeon with the choice of fixed, variable, or hybrid screw constructs as a way of tailoring screw angles to individual anatomical/biomechanical needs.
-
Ibn Sina (often known by his last name in Latin, Avicenna; 980-1037 A. D.) was the most famous physician and philosopher of his time. His Canon of Medicine, one of the most famous books in the history of medicine, surveyed the entire medical knowledge available from ancient and Muslim sources and provided his own contributions. In this article the authors present a unique picture of the neurosurgical technique of Ibn Sina and briefly summarize his life and work.
-
Comparative Study Clinical Trial
Analysis of magnetic resonance imaging-based blood and cerebrospinal fluid flow measurements in patients with Chiari I malformation: a system approach.
A pilot study was performed to assess noninvasively the change in intracranial compliance (ICC) and intracranial pressure (ICP) in patients with Chiari I malformation who undergo foramen magnum decompression. The working hypothesis was that the main effect of the decompressive surgery is a change in ICP. Noninvasive cine phasecontrast magnetic resonance (MR) imaging is a motion-sensitive dynamic MR imaging technique that allows for visualization and quantitation of tissue motion and flow. The authors' group has used dynamic phase-contrast MR imaging to visualize and quantify pulsatile blood and cerebrospinal fluid (CSF) flow in the craniospinal system. ⋯ Magnetic resonance imaging measurement of transcranial CSF and blood flow may lead to a better understanding of the pathophysiology of Chiari malformations and may prove to be an important diagnostic tool for guiding for the treatment of patients with Chiari I malformation.