Surgery on the lateral skull base with the navigated controlled drill employed for a mastoidectomy (pre clinical evaluation).
Patients who are treated with a mastoidectomy usually suffer from an inflammation of the petrosal bone. The intervention is a time consuming landmark based surgery and usually performed with a powered drill. Delicate risk structures must be respected. Navigated Control (NC) describes the control for a power driven instrument which is controlled by a surgeon and additionally controlled according to the position of the instrument relatively to a deliberated position known from a preoperatively segmented work space which excludes risk structures. The force of a drill can be regulated by the principle of NC. Following results were received: 1. Risk structure segmentation is feasible 2. The drill and a phantom can be registered. 3. With NC the resection is faster, more accurate and with no risk structures damage. 4. The phantom is suitable.
Hofer
M
M
BMBF-Innovation Center Computer Assisted Surgery ICCAS, University of Leipzig, Leipzig, Germany. Mathias.Hofer@medizin.uni-leipzig.de
Grunert
R
R
Dittrich
E
E
Müller
E
E
Möckel
M
M
Koulechov
K
K
Strauss
M
M
Korb
W
W
Schulz
T
T
Dietz
A
A
Lüth
T
T
Strauss
G
G
D005858:Germany; D006801:Humans; D008416:Mastoid / Q000601:surgery; D010579:Petrous Bone / Q000276:immunology; D019291:Skull Base / Q000601:surgery*; D025321:Surgery, Computer-Assisted; D013525:Surgical Instruments