| TYPE OF OPERATION | 1980-1985 | 1985-1990 | 1990-1995 | 1996 |
1 | Head injuries | 30 | 330 | 150 | 15 |
2 | Tumors of the chiasmal region (giant pituitary adenomas , craniopharyngiomas , optic chiasm gliomas, optic sheet meningiomas , tuberculum sellae meningiomas, olfactory groove meningiomas , etc. ) by subfrontal , bifrontal , monofrontal , pterional and etc. approaches | 161 | 25 | 70 | 33 |
3 | Transsphenoidal excision of sellar and suprasellar lesions | 14 | 0 | 17 | 8 |
4 | Tumors of the brain other than, chiasmal region, including middle and posterior skull base tumors ,exophytic brain stem tumors transcallosal , far lateral posterior fossa approach and the subtemporal transtentorial route with its different variations, here included the transoral approach with its different modifications | 60 | 89 | 469 | 44 |
5 | Spinal surgery for degenerative lesions e.g. PLD, PCD, LCS, CCS, with various techniques : laminectomies, hemilaminectomies, fenestrations , far lateral approach, Cloward anterior fusion , Otero threaded grafts e.t.c. | 3 | 154 | 336 | 105 |
6 | Percutaneous diskectomies | 0 | 0 | 12 | 1 |
7 | Harrington posterior distraction and fusion for the unstable fractured spine | 0 | 33 | 94 | 10 |
8 | Luque posterior fusion for unstable degenerative and posttraumatic spine, encluding spondylolysthesis | 0 | 0 | 49 | 8 |
9 | Slot H-Frame system application for posttraumatic unstable back, osteomyelitis , scoliosis and tumors of the vertebral spine | 0 | 0 | 32 | 1 |
10 | Stabilization of the fractured cervical spine by cervical plates and screws and posterior occipito-cervical fusion using the Ransford device | 0 | 3 | 10 | 4 |
11 | Tumors of the spine ( extra, intramedullary , mts and e.t.c ) | 45 | 15 | 42 | 7 |
12 | Shunting procedures ( VPS, VAS, LPS ) for hydrocephalus , arachnoid cysts, pseudotumor cerebri, NPH e.t.c. ) | 5 | 156 | 118 | 19 |
13 | Endoscopic ventricular mass biopsy , colloid cyst puncture and evacuation, choroid plexus thermodestruction and third ventricular floor fenestration | 0 | 0 | 12 | 1 |
14 | Dysrrhaphic congenital anomalies , such as meningomyeloradiculocele, encephalocele , tethered cord , sacral neuroblastomas e.t.c. | 0 | 157 | 58 | 9 |
15 | Cranioplasties (posttraumatic, congenital deformities) | 5 | 33 | 54 | 2 |
16 | Decompressive craniotomies with extensive skull base bone dissection in fibrous dysplasia and osteosclerosis | 0 | 7 | 24 | 3 |
17 | Posttraumatic neurorrhaphies and neurolysis and transposition | 10 | 13 | 74 | 2 |
18 | Entrapment syndromes, including carpal tunnel syndrome, TOS, tarsal tunnel syndrome , Tardev Palsy and e.t.c. syndromes | 0 | 15 | 80 | 9 |
19 | CSF leak from the different sites of the skull base | 0 | 7 | 15 | 2 |
20 | Brain abscess evacuation different localization | 0 | 6 | 25 | 9 |
21 | Stereotaxic thermocoagulation for epilepsy, Parkisonism | 7 | 0 | 0 | 0 |
22 | Stereotaxic introduction of radioactive gold in the treatment of cystic craniopharyngiomas | 6 | 0 | 0 | 0 |
23 | Clipping and wrapping of arterial aneurysms | 11 | 13 | 40 | 4 |
24 | Excision of AVM different localization | 7 | 6 | 28 | 1 |
25 | Endovascular occlusion of carotid cavernous fistulas using muscle and Serbinenko detachable balloons | 20 | 0 | 0 | 0 |
26 | Embolisation of deeply seated AVMs using polystrine particles mixed with tantalum and glue | 5 | 0 | 0 | 0 |
27 | Extra-intracranial anastomosis for low flow syndromes and Moya-moya disease | 5 | 0 | 5 | 1 |
28 | Microvascular decompression for trigeminal neuralgia | 2 | 3 | 3 | 2 |
29 | Cervical sympathectomies for low flow syndromes and vasospasm | 6 | 0 | 0 | 0 |
30 | Balloon vasodilatation for arterial spasm after SAH due to rupture aneurysms | 5 | 0 | 0 | 0 |
31 | Heamatoma evacuation after massive ICH. IVH in patients with hypertensive encephalopathy | 0 | 24 | 76 | 2 |
32 | Total excision of spinal cord AVM | 0 | 0 | 7 | 0 |
33 | Excision of peripheral nerve tumors, including the sacral plexus neurinoma and onion whorle disease and schwannoma of C1 andC2 roots. | 3 | 7 | 22 | 3 |
34 | Facial-hypoglossal anastomosis for posttraumatic facial palsy. | 0 | 12 | 5 | 0 |
35 | Endarterecomy for ICA stenosis | 0 | 0 | 8 | 1 |
36 | Dilatation of the stenotic ICA using Fogerti balloon catheter | 0 | 0 | 3 | 0 |
37 | Endoscopic fenestration with coagulation of the choroid plexus for hydrocephalus | 0 | 0 | 7 | 5 |
38 | Endoscopic transventricular biopsy for malignant tumors | 0 | 0 | 2 | 3 |
39 | Bertrand Dorsal Neurectomy for spasmodic torticollis | 0 | 0 | 0 | 3 |
40 | Amygdalohippocampectomy for epilepsy treatment | 0 | 0 | 6 | 2 |
41 | Miscellaneous | ? | 84 | 23 | 30 |
| T O T A L | 410 | 1192 | 1976 | 343 |
