Session VIII Fixation Devices Casts are stress sharing Pins, screws, Steinman pins and Kirschner wires when used alone provide partial immobilization and.

Slides:



Advertisements
Similar presentations
Jan 2011 Headless Screw System Elastic Pin Jan 2011.
Advertisements

Treatment of femoral neck fractures INTERNAL FIXATION –In biologic ‘young’ patients (< yr) ARTHROPLASTY –In biologic ‘old’ patients (> yr)
by Levent Eralp, and Mehmet Kocaoglu J Bone Joint Surg Am
Diaphyseal fractures in children Mohamed M. Zamzam Associate Professor & Consultant Pediatric Orthopedic Surgeon KKUH, Riyadh, Saudi Arabia.
Tibial Plateau Fractures
General principles of fractures III
Sadeq Al-Mukhtar Consultant orthopaedic surgeon
Mr G Shyamalan Consultant Hand Surgeon HEFT.  Understanding the radiograph  Classification  Imaging and consent  Approach  Surgical case based discussion.
Fractures and Bone Healing
 The animal will not be able to use the leg at all and if able will hold the leg up. Sometimes the foot will be rested on the ground when the animal.
HAMMERTOES CAUSES AND CORRECTIONS
Peter Hull With thanks to LVR March  Screws  Plates  Nails  External fixators.
Periprosthetic Fractures
External Fixation Indications and Techniques
Fractures In this unit we will be discussing fractures.
Bone Fracture. Recall: Three types of Stress: Three types of Stress: Tension Tension Compression Compression Shear Shear.
Extracapsular Fractures
Biomechanics of Plate Fixation
OSCE EXAM SIMULATION WITH THE IDEAL ANSWER second part
Internal Fixation of Ankle Fractures
Fractures general management. A high velocity injury should always be treated according to the Advanced Trauma Life Support (ATLS) guidelines with attention.
Mechanism of the Injury (cause)  Fall or hit on to knee cap.
Pediatric Femoral Shaft Fractures
Distal Femur Fractures
Percutaneous Screw Fixation or Cast Immobilization for Nondisplaced Scaphoid Fractures by Charles D. Bond, Alexander Y. Shin, Mark T. McBride, and Khiem.
Locking Plates Advantages & Indications
Bone Packs. 2 Rongeurs 4 Bone-Cutting Forceps.
Fractures Created By: Heidi Reese, Eric Szekely, and Tony Capatch.
Pathomechanics of Bone
Fractures and Bone Healing H Biology II Adapted
FRACTURES OF THE RADIUS & ULNA. THE IMPORTANCE OF THE RADIUS AND ULNA  The radius and ulna have an important role in positioning the hand. The ulna has.
Orthopedic Implants. Orthopedic Prosthetics & Implants Ankles, Heels & Toes Prostheses Bone Cements & Fillers Bone Fixators Collagens & Bone Grafts.
Aftercare of Nailed Patients and Dynamisation of Fractures КЕМЕРОВО ГкБ №3 mail.kuzbass.net.
Fractures and Bone Healing
Introduction into Traumatology and Orthopedics
Introduction to Fractures Fractures - definitions, healing and management.
Problem Statement Project Proposal Design a device that will reduce the time of a medial malleolus fracture repair surgery Design a device that simplifies.
 Type C: 4/5 patients treated successfully by functional bracing  Campbell et al  Type C: 2/3 healed successfully with nonoperative management  Kumar.
“We must be willing to get rid of the life we’ve planned, so as to have the life that is waiting for us.” -Joseph Campbell.
 Splints/Immobilizers  Casts  Traction  External Fixation  Internal Fixation  Why? SplintsSplints, casts, and braces support and protect broken.
by Matjaz Veselko, and Matej Kastelec
Treatment of Fracture by Dr. Nimer Khraim DVMS, BVMS, MVSc, PhD(Dr.med.vet)
ALTERNATIVE TREATMENT IN PATIENTS WITH
LIFE “We must be willing to get rid of the life we’ve planned, so as to have the life that is waiting for us.” -Joseph Campbell.
Radiology Packet 26 Fracture Complications. 2 yr old FS Mix breed dog HX = referred with a history of an acute injury that occurred 3 months ago, at that.
Complication of p.o.p : 1- tight cast lead to vascular compression and
Orthopaedic Surgery Orthopedic Surgery ST 240. Bone Cell.
 skeleton – bone and cartilage  embryos: hyaline cartilage  young children: most replaced by bone  bridge of nose, parts of ribs, joints = still cartilage.
Orthopaedic Trauma Association Protection and/or confidentiality of contents statement, this statement may also include a corporate copyright notice. Intro.
Fracture Management in Small Animal Practice
Fractures and Bone Healing
MANAGEMENT OF FRACTURES
1st Zliten Orthopedic Symposium (ZOS) 10th March,2016
Fractures.
Fractures and Bone Healing
Disorders of the Bones Fracture a break in the bone
Bone Repair Challenge ~Biomedical Engineering~
NCB® Plating System Display
Fractures and Bone Healing
A Novel Closed-Wedge High Tibial Osteotomy Procedure to Treat Osteoarthritis of the Knee: Hybrid Technique and Rehabilitation Measures  Ryohei Takeuchi,
NCB® Distal Femoral Workshop
NCB® Proximal Tibia Workshop
Eiji Kondo, M. D. , Ph. D. , Kazunori Yasuda, M. D. , Ph. D
Treatment of Midshaft Clavicle Fractures: Application of Local Autograft With Concurrent Plate Fixation  Erik L. Slette, B.A., Jacob D. Mikula, B.S.,
بنام خداوند جان وخرد.
LIVE FOR TODAY “We must be willing to get rid of the life we’ve planned, so as to have the life that is waiting for us.” -Joseph Campbell.
Treatment of Midshaft Clavicle Fractures: Application of Local Autograft With Concurrent Plate Fixation  Erik L. Slette, B.A., Jacob D. Mikula, B.S.,
Managing Bone Deficiency and Nonunions of the Proximal Femur
Presentation transcript:

Session VIII Fixation Devices Casts are stress sharing Pins, screws, Steinman pins and Kirschner wires when used alone provide partial immobilization and are stress sharing. Compression screws and plates are stress shielding or bearing. External fixation is stress sharing –No metal at fx site: distal and proximal –Avoids excessive soft tissue dissection –Potential loss of joint motion due to penetration of multiple tissues –Applicable to any long bone fx

Casts are stress sharing

Intramedullary rod with locking screws- stress sharing

Tibial nail unlocked (L) and statically locked (R) are stress sharing

K wires are stress sharing

Screws: Note threads and flutes Cortical Screw: May-depending on type- require tapping of threads into cortex. Small flutes, designed for solid cortical bone. Can be used for fixation of bone to bone or hardware to bone. Will not create compression without over-drilling near cortex. Cancellous screw: self tapping. Large flutes for gripping softer spongy bone. Usually used for bone to bone fixation. Will create compression. May be used to attach hardware.

Cortical Screw Self-tapping flutes on this example.

Cancellous Screw Note the larger flutes

Comparision of cancellous and cortical screws.

Fixation plates. Many types available. These are malleable and are hand-bent to fit bone contour. Note oval screw holes. Eccentric placement of screw within hole allows compression of fracture fragments.

Screws combined with plates are stress bearing.

Dynamic Compression Plate

Kirschner Wires and Steinman Pins K-wires are smaller, come in smooth or threaded, usually in 3 sizes:.035,.045, and.062. Steinman pins are larger.

Steinman Pins Kirschner Wires Thicker Usually Threaded Thinner Threaded or plain

Cerclage Wires and Staples

Stainless Steel Monofilament Wire

SS Wire in Cerclage

AP View Cerclage

K-wires used for small bone fixation. The hooked portion protrudes through the skin allowing “easy” removal.

Lateral View, same wrist

Medullary Rod. Here a femoral rod.

Note locked rod fixation to prevent rotation, and “pistoning” of rod.

Canulated Screw K-wire used as guide for larger screw: less bone loss if error occurs and second placement attempt is required.

Canulated Screw: where you really don’t want to lose too much bone while getting the screw just right. What was the pre-op Dx?

Try this one for practice.

Practice film #2. Dynamic hip screw