Exogen is a bone healing system which is used in treating fractures, especially those which are not healing naturally. It uses ultrasound waves to stimulate bone healing.
How Does Exogen Work?
Exogen uses a low intensity pulsed ultrasound (LIPUS) signal to stimulate the natural bone healing process.
It is a portable device with a small transducer which is placed on the skin over the broken bone. Ultrasound waves pass through the overlying soft tissues to penetrate the bone.
Exogen is simple to use and has a short treatment time of 20 minutes a day. It can be used with casts and is effective even where metal fixations are present
It can be used on recent fractures to accelerate the healing time, as well as on non-union fractures (where the bone is not healing).
Facts and Figures
- Accelerates the healing of broken bones by 38% 1,2
- High heal rate for non-union fractures (no sign of healing observed) - 86%3
- 10 per cent of fractures (c. 85,000 fractures per annum) are estimated to be classed as delayed or non-union – where slow or no signs of normal healing are observed4
Indications and Contraindications
The Exogen bone healing system can be used for:
- Treatment of delayed union and non-unions
- Accelerating the time to heal of fresh fractures
- Treatment of stress fractures
- Accelerating repair following osteotomy
- Accelerating repair in bone transport procedures
- Accelerating repair in distraction osteogenesis procedures
- Treatment of joint fusion
There are currently no known contraindications (when the system cannot be used). Although safety and effectiveness have not been established for children, pregnant women or patients with pacemakers, fractures from bone cancer, poor circulation or blood clotting disorders.
Who has used it?
- England Rugby player Olly Barkley on his fractured ankle.
- Arsenal Footballer Jack Wilshere on his fractured foot.
- Team GB paralympic football captain Jonny Paterson.
1. Heckman JD, Ryaby JP, McCabe J, Frey JJ, Kilcoyne RF. Acceleration of tibial fracture-healing by noninvasive, low-intensity pulsed ultrasound. J Bone Joint Surg Am 1994;76:2634.
2. Kristiansen TK, Ryaby JP, McCabe J, Frey JJ, Roe LA. Accelerated healing of distal radial fractures with the use of specific, low-intensity ultrasound.J Bone Joint Surg Am 1997;79:96173.
3. Nolte PA, van der Krans A, Patka P, Janssen JMC, Ryaby JP, Albers GHR. Low-intensity ultrasound in the treatment of nonunions. J Trauma 2001;51:693 703.
4. Rubin C, Bolander M, Ryaby JP, et al. The use of low-intensity ultrasound to accelerate the healing of fractures. J Bone Joint Surg 2001;83A(2):259 70
You can read more about the Exogen ultrasound bone healing device by visiting www.exogen.com