Final answer:
The correct sequence of surgical instruments for the insertion of a bone screw involves incision with a scalpel, soft tissue dissection, drilling a pilot hole, measuring the depth, optional countersinking, tapping, and screw insertion with a screwdriver.
Step-by-step explanation:
Correct Sequence of Surgical Instruments for Bone Screw Insertion
The insertion of a bone screw during surgery is a precise procedure that requires the use of specialized surgical instruments. Generally, the correct sequence for this process includes:
- Skin incision, typically done with a scalpel to provide access to the bone.
- Soft tissue dissection to further expose the bone, often using retractors and scissors.
- Identification of screw placement location guided by imaging techniques or anatomical landmarks.
- Drilling a pilot hole with a power drill or a hand drill, size determined by the planned screw.
- Measuring the depth of the hole with a depth gauge to select the appropriate screw length.
- Countersinking (optional, depending on the type of screw) to ensure that the screw head lies flush with bone surface.
- Tapping the drill hole with a tap to cut threads for the screw, matching the size of the screw.
- Insertion of the screw utilizing a screwdriver and ensuring proper torque to avoid stripping or cracking.
It is crucial for the success of the surgery that each step is performed with precision, and using the correct size instruments for the specific patient and type of screw. Variations may exist depending on the specific surgical procedure and patient anatomy.