What are Synthes screws?
The DePuy Synthes 4.0mm Cannulated Screws are intended for the fixation of fractures, osteotomies, fusions and nonunions of small bones and small bone fragments in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in which growth plates will not be crossed by …
What are Synthes cannulated screws made of?
The 4.0 mm Cannulated Screws are part of the DePuy Synthes Cannulated Screw System. The screws are available in short and long thread, and stainless steel and titanium.
What are the 4.5 mm cannulated screws indicated for?
The DePuy Synthes 4.5mm Cannulated Screws are intended for fixation of fractures, fusions, osteotomies, nonunions, and malunions of long bones and long bone fragments; and the bones of the hand and foot, in adults and in both children (2-12 years) and adolescents (12-21 years) in which growth plates have fused or in …
What is in a small frag set?
The Small Fragment Base Set includes nonlocking One-Third Tubular Plates that can be used on the clavicle, scapula, olecranon, humerus, radius, ulna, distal tibia, and fibula. The 2.7 mm Locking Fragment Plates can be implanted on small bones as a primary or auxiliary implant.
What is the difference between cortical and cancellous screws?
Cortical bone screws have a fine pitch; cancellous bone screws have a coarse pitch. The finer the pitch, the more turns the surgeon will have to make to insert the screw and the more turns of the spiral thread engage in a given depth of cortex.
How many total anatomical implant trays are available for use with the USF?
Compared to the existing system with more than 20 sets, the USF System with its 8 modular anatomic implant trays has the following three signature benefits: Improved instrument and system ease of use by operating room teams and hospital staff.
Which drill guide is required to insert a standard locking screw?
When using a locking head screw, use a threaded drill guide to keep the drill in the center of the plate hole and perfectly perpendicular to the plate so that the screw head can lock evenly. Drill the hole with the appropriate-sized drill bit. Monocortically inserted screws are generally drilled to a depth of 5–6 mm.
What drill do surgeons use?
The manual cranial drill is the most used and predominant type of drill in surgery, and performs manually. It has an adjusted stopper based on the setting and where the bone is the most thickest to prevent plunging. Surgeons use this drill manually without any other procedures.
Where are cancellous screws used?
Cancellous screws are designed to optimize fixation in metaphyseal bone environments; however, certain clinical situations may require the substitution of cortical screws for use in cancellous bone, such as anatomic constraints, fragment size, or available instrumentation.
Where do you use cortical screws?
2.4 mm Cortical Screw is typically inserted into holes drilled equal to the root diameter and are either self-tapping or are inserted tapped (threaded) holes.
What is the DePuy synths screw removal set?
The screw removal set contains screwdriver shafts for all DePuy Synthes screw sizes and drives, as well as extraction instruments for removing broken and damaged screws.
How big is a self tapping Schanz screw?
Self-tapping Schanz Screw – With trocar tip – Diameters of 4.0 mm, 4.5 mm, 5.0 mm and 6.0 mm – Lengths of 60 mm, 80 mm, 100 mm, 125/130 mm, 150/160 mm 190/200 mm and 250 mm – Available in Stainless Steel or Titanium alloy (TAN) – Sterile and nonsterile-packaged
How are 4.5 mm cannulated screws used for surgery?
Drilling and tapping the self-drilling, self-tapping flutes of the 4.5 mm cannulated screws make predrilling and pretapping unnecessary in most cases. the sets include 3.2 mm cannulated drill bits and a cannulated tap for use in dense bone, if needed. 6 DePuy Synthes Companies 4.5 mm Cannulated Screws Surgical Technique
How do you put cancellous screws on bone?
Choose the length of the drill and screws 5 mm shorter than the length of the guide wires. Drill over the wires with a 3.6 mm cannulated drill bit. Then insert three 7.0 mm or 7.3 mm cannulated cancellous screws over the wires. In younger patients with dense cancellous bone, the cannulated tap may be necessary to precut the thread.