Download Free Medical Fractures and Bone Healing PowerPoint Presentation

Fractures and Bone Healing PowerPoint Presentation

DOWNLOAD MEDICAL POWERPOINT PRESENTATION

About This Presentation

Description : Check out this medical presentation on Orthopaedics, which is titled "Fractures and Bone Healing", to know about Fractures and Bone Healing.

Tags : Orthopaedics, Fractures, Bone Healing

Published on : Aug 10, 2021 | Views : 3515 | Downloads : 18

Shareable Url :

Embed Code :

Comment

Transcript

Slide 1-

Fractures and Bone Healing
Slide 2-

Statistics • Fractures of extremities most common • More common in men up to 45 years of age • More common in women over 45 years of age Before 75 years wrist fractures (Colles’) most common • After 75 years hip fractures most common
Slide 3-

Types of fractures Magnitude and direction of force Closed – Bone fragments do not pierce skin Open/compound – Bone fragments pierce skin Displaced or undisplaced
Slide 4-

Transverse fracture Usually caused by directly applied force to fracture site
Slide 5-

Spiral or Oblique Caused by violence transmitted through limb from a distance (twisting movements)
Slide 6-

Greenstick Occurs in children: bones soft and bend without fracturing completely
Slide 7-

Crush fractures Fracture in cancellous bone: result of compression (osteoporosis)
Slide 8-

Burst fracture Occurs in short bones, e.g. vertebra from strong direct pressure such as impaction of disc.
Slide 9-

Avulsion fracture Caused by traction, bony fragment usually torn off by a tendon or ligament. What muscle group attaches to this bony prominence and what nerve also runs in close proximity? Forearm flexors (common flexor origin) ulnar nerve
Slide 10-

Fracture dislocation/subluxation Fracture involves a joint: results in malalignment of joint surfaces.
Slide 11-

Impacted fracture Bone fragments are impacted into each other.
Slide 12-

Comminuated fracture Two or more bone pieces - high energy trauma
Slide 13-

Comminuated fractures can require serious hardware to repair.
Slide 14-

Stress fracture Abnormal stress on normal bone (fatigue fracture) or normal stress on abnormal bone (insufficiency fracture).
Slide 15-

Functions of the X-ray Localises fracture and number of fragments Indicates degree of displacement Evidence of pre-existing disease in bone Foreign bodies or air in tissues May show other fractures MRI, CT or ultrasound to reveal soft tissue damage
Slide 16-

How to Handle Fractures Reduction Open reduction – Allows very accurate reduction – Risk of infection – Usually when internal fixation is needed Manipulation – Usually with anaesthesia Traction – Fractures or dislocation requiring slo
Slide 17-

Holding the reduction 4-12 weeks External fixation Internal fixation – Intermedually nails, compression plates Frame fixation
Slide 18-

External fixation Used for fractures that are too unstable for a cast. You can shower and use the hand gently with the external fixator in place.
Slide 19-

Frame fixation Allows correction of deformities by moving the pins in relation to the frame.
Slide 20-

Internal fixation
Slide 21-

Bone Healing 1. Fracture hematoma – blood from broken vessels forms a clot. – 6-8 hours after injury – swelling and inflammation to dead bone cells at fracture site
Slide 22-

2. Fibrocartilaginous callus (lasts about 3 weeks (up to 1st May)) – new capillaries organise fracture hematoma into granulation tissue - ‘procallus’ – Fibroblasts and osteogenic cells invade procallus. – Make collagen fibres which connect ends together – Chondroblasts begin to produce fibrocatilage,
Slide 23-

3. Bony callus (after 3 weeks and lasts about 3-4 months) – osteoblasts make woven bone.
Slide 24-

4. Bone Remodeling Osteoclasts remodel woven bone into compact bone and trabecular bone – Often no trace of fracture line on X-rays.
Slide 25-

ppt slide no 25 content not found