Exogen

Exogen has several meanings:

• an archaic term meaning a woody plant whose stem is formed by successive accretions to the outside of the wood under the bark; this group is essentially the dicots.
• a phase in the life cycle of a hair follicle in which a hair exits the follicle.
• a non-invasive ultrasound bone healing medical device, that aids in bone healing[1][2][3] manufactured by Bioventus.

See also

• Exogeny
• Endogen

References

1. Heckman JD, Ryaby JP, McCabe J, Frey JJ, Kilcoyne RF (January 1994). "Acceleration of tibial fracture-healing by non-invasive, low-intensity pulsed ultrasound". The Journal of Bone and Joint Surgery. American Volume. 76 (1): 26–34. doi:10.2106/00004623-199401000-00004. PMID 8288661.
2. Nolte PA, van der Krans A, Patka P, Janssen IM, Ryaby JP, Albers GH (October 2001). "Low-intensity pulsed ultrasound in the treatment of nonunions". The Journal of Trauma. 51 (4): 693–702, discussion 702–3. doi:10.1097/00005373-200110000-00012. PMID 11586161.
3. Kristiansen TK, Ryaby JP, McCabe J, Frey JJ, Roe LR (July 1997). "Accelerated healing of distal radial fractures with the use of specific, low-intensity ultrasound. A multicenter, prospective, randomized, double-blind, placebo-controlled study". The Journal of Bone and Joint Surgery. American Volume. 79 (7): 961–73. doi:10.2106/00004623-199707000-00002. PMID 9234872.