J.C. Maroon, et al: Lateral microsurgical approach to intraorbital tumors. J Neurosurg Vol. 44, No. 5: 556-561, 1976.

JOSEPH C. MAROON, M.D., AND JOHN S. KENNERDELL, M.D.

The authors describe their microsurgical lateral orbital approach to intraorbital tumors. In seven patients ultrasonic scanning, computerized axial tomography, polytomography, orbital venography, and arteriography have allowed precise intraorbital tumor localization relative to the optic nerve. The authors believe that circumscribed tumors superior, lateral, or inferior to the optic nerve can be safely and completely removed through a 30-35-mm lateral skin incision with microsurgical dissecting techniques. A combined neurosurgical-ophthalmological team approach is emphasized. (J Neurosurg Vol. 44, No. 5: 556-561, 19

John S. Kennerdell, et al: Microsurgical Approach to Intraorbital Tumors. Achives of Ophthalmology Vol. 94: 1333-1336, 1976.

John S. Kennerdell, MD, Joseph C. Maroon, MD

We believe that, with the modified Kronlein lateral orbitotomy microsurgical approach, most orbital tumors can be successfully removed with reduced morbidity and complications, compared with the frontotemporal craniotomy or the standard Kr6nlein lateral orbitotomy. The cosmetic result is quite satisfactory, and the hospital stay should be brief. The use of the operating microscope and the specifically designed and modified instruments for retraction and dissection in the orbit, combined with the efficiency of the self-irrigating bipolar coagulating forceps, add a new dimension to the safety and efficiency of orbital surgery. (Arch Ophthalmol 94:1333-1336, 1976)

Louis E. Mark, et al: Microsurgical Removal of a Primary Intraorbital Meningioma. American J Ophthalmology 86: 704-709, 1978.

Louis E. MARK, MD., JOHN S. KENNERDELL, M.D., JOSEPH C. MAROON, M.D., ARTHUR E. ROSENBAUM, M.D., RALPH HELNZ, MD., AND BRUCE L. JOHINSON, M.D.

The well-known prognosis for meningiomas of the orbit or cranio-orbital junction is visual loss. We recently removed a primary intraorbital optic nerve sheath meningioma in a patient whose visual acuity was finger counting for about six months. Although the tumor encircled the nerve, only mild optic atrophy was present. Postoperatively, visual recovery was almost complete, which was undoubtedly related to a fine balance having been maintained between the compressive force of the tumor and the vascular supply to the nerve. To our knowledge, this is the first report of visual recovery following microsurgical orbital dissection for this type of tumor. (American J Ophthalmology 86: 704-709, 1978)