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Papers by gabriel benson
Ear, Nose & Throat Journal, 2006
Cerebrospinal fluid (CSF) leaks may occur after acoustic neuroma resection. These leaks are usual... more Cerebrospinal fluid (CSF) leaks may occur after acoustic neuroma resection. These leaks are usually the result of an iatrogenic injury during removal. The retrosigmoid approach is commonly associated with leaks that occur through the lateral end of the internal auditory canal, through the perilabyrinthine cells extending to the region of the internal auditory canal, or through the retrosigmoid air cells. We describe a case of an infracochlear CSF leak that developed following the retrosigmoid resection of an acoustic neuroma. To the best of our knowledge, this leak was unique for both its location and etiology.
Ear, Nose & Throat Journal, 2007
We conducted a study to establish standardized measurements of the common anatomic landmarks used... more We conducted a study to establish standardized measurements of the common anatomic landmarks used during surgery via the middle cranial fossa approach. Results were based on high-resolution computed tomography (CT) images of 98 temporal bones in 54 consecutively presenting patients. Measurements were obtained with the assistance of the standard PACS (picture archiving and communication system) software. We found that the superior semicircular canal (SSC) dome was not the highest point on the temporal bone (i.e., the arcuate eminence) in 78 of the temporal bone images (79.6%). Pneumatization above the SSC and above the internal auditory canal (IAC) was found in 27 (27.6%) and 39 (39.8%) temporal bone images, respectively. The anterior wall of the external auditory canal was always anterior to the anterior wall of the IAC. The mean angles between the SSC and the posterior and anterior walls of the IAC were 42.3° and 60.8°, respectively. We also measured other distances, and we compare...
Ear, nose, & throat journal, 2009
Hydroxyapatite bone cement is a versatile material used to reconstruct many types of bony surgica... more Hydroxyapatite bone cement is a versatile material used to reconstruct many types of bony surgical defects, and its applications have been widely reported in the literature. Still, complications of its use do occur. We describe 2 cases of hydroxyapatite resorption and subsequent seroma formation in patients who had undergone retrosigmoid craniotomy. The presentation in both cases mimicked a CSF leak. In both cases, the fragmented cement was removed, and the patient experienced no further complications. While hydroxyapatite cement is a highly useful product for the reconstruction of some craniofacial or skull base defects, we believe that it should not be used for the reconstruction of retrosigmoid/suboccipital craniotomies because it is associated with unacceptably high complication rates. Surgeons must exercise caution in selecting candidates for hydroxyapatite reconstruction of cranial defects.
Otolaryngology–Head and Neck Surgery, 2004
moved from fistulae of the oval window area, the promontory, multiple fistulae and large fistulae... more moved from fistulae of the oval window area, the promontory, multiple fistulae and large fistulae of the lateral semicircular canal if the matrix has already penetrated into the labyrinth. After removal of the matrix over fistulae of the lateral semicircular canal, a temporalis fascia graft should be used for cover.
Ear, Nose & Throat Journal, 2006
Cerebrospinal fluid (CSF) leaks may occur after acoustic neuroma resection. These leaks are usual... more Cerebrospinal fluid (CSF) leaks may occur after acoustic neuroma resection. These leaks are usually the result of an iatrogenic injury during removal. The retrosigmoid approach is commonly associated with leaks that occur through the lateral end of the internal auditory canal, through the perilabyrinthine cells extending to the region of the internal auditory canal, or through the retrosigmoid air cells. We describe a case of an infracochlear CSF leak that developed following the retrosigmoid resection of an acoustic neuroma. To the best of our knowledge, this leak was unique for both its location and etiology.
Ear, Nose & Throat Journal, 2007
We conducted a study to establish standardized measurements of the common anatomic landmarks used... more We conducted a study to establish standardized measurements of the common anatomic landmarks used during surgery via the middle cranial fossa approach. Results were based on high-resolution computed tomography (CT) images of 98 temporal bones in 54 consecutively presenting patients. Measurements were obtained with the assistance of the standard PACS (picture archiving and communication system) software. We found that the superior semicircular canal (SSC) dome was not the highest point on the temporal bone (i.e., the arcuate eminence) in 78 of the temporal bone images (79.6%). Pneumatization above the SSC and above the internal auditory canal (IAC) was found in 27 (27.6%) and 39 (39.8%) temporal bone images, respectively. The anterior wall of the external auditory canal was always anterior to the anterior wall of the IAC. The mean angles between the SSC and the posterior and anterior walls of the IAC were 42.3° and 60.8°, respectively. We also measured other distances, and we compare...
Ear, nose, & throat journal, 2009
Hydroxyapatite bone cement is a versatile material used to reconstruct many types of bony surgica... more Hydroxyapatite bone cement is a versatile material used to reconstruct many types of bony surgical defects, and its applications have been widely reported in the literature. Still, complications of its use do occur. We describe 2 cases of hydroxyapatite resorption and subsequent seroma formation in patients who had undergone retrosigmoid craniotomy. The presentation in both cases mimicked a CSF leak. In both cases, the fragmented cement was removed, and the patient experienced no further complications. While hydroxyapatite cement is a highly useful product for the reconstruction of some craniofacial or skull base defects, we believe that it should not be used for the reconstruction of retrosigmoid/suboccipital craniotomies because it is associated with unacceptably high complication rates. Surgeons must exercise caution in selecting candidates for hydroxyapatite reconstruction of cranial defects.
Otolaryngology–Head and Neck Surgery, 2004
moved from fistulae of the oval window area, the promontory, multiple fistulae and large fistulae... more moved from fistulae of the oval window area, the promontory, multiple fistulae and large fistulae of the lateral semicircular canal if the matrix has already penetrated into the labyrinth. After removal of the matrix over fistulae of the lateral semicircular canal, a temporalis fascia graft should be used for cover.