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Co-Inventors of the Grymer/Sterner® Toggle Suture Method of LDA Repair

Dr. Jorgen Grymer, a third generation veterinarian, is a graduate of the Royal Veterinary and Agricultural University in Copenhagen, Denmark. He completed his D.V.M. degree in 1977 and his P.h.D. in 1979. From 1980-1983, Dr. Grymer served as an assistant professor in Food Animal Surgery and Medicine at Michigan State University. While working at MSU, Dr. Grymer and Dr. Sterner designed the original Grymer/Sterner toggle suture for use in LDA repair.

After leaving Michigan State University, Dr. Grymer worked on large Dairy Units in Saudi Arabia and Libya (1984-1987) before returning to Denmark. He entered private practice in Galten, Denmark, and currently works in a mixed practice employing 4 veterinarians and 4 veterinary nurses.


Dr. Keith E. Sterner is a graduate of Michigan State University in East Lansing, Michigan. He completed his D.V.M. degree in 1969. Dr. Sterner served in the U.S. Army Veterinary Corps from 1970-1972, then entered private practice in Ionia, Michigan with his father, the late Dr. Edward F. Sterner. In 1982, Dr. Sterner collaborated with Dr. Grymer in developing the Grymer/Sterner toggle suture method of LDA repair. Currently, Sterner Veterinary Clinic, P.C. is a mixed practice and employs 11 full time veterinarians.

Dr. Sterner has been active in organized veterinary medicine, serving as both officer and committee member in the AABP, NMC, and AVMA, and FDA. Dr. Sterner continues to actively practice dairy and production medicine, and is committed to strengthening organized medicine through his involvement in professional organizations.

Memorial Tribute

Dr. Jorgen Grymer, DVM, PhD

On March 1, 2017 Dr. Jorgen Grymer lost a courageous 3 year battle with a highly malignant form of brain cancer, Glioblastoma Multiforme (GBM). Dr. Grymer was a 3rd generation veterinarian. Both his father and grandfather served in mixed animal practices in the area surrounding Galten, Denmark. Dr. Grymer raised his family in Galten, and was a partner in the Galten Animal Hospital for 25 years prior to his death.

Following graduation at The Royal College of Veterinary Medicine in Copenhagen, Denmark, Dr. Grymer accepted a faculty position at Michigan State University College of Veterinary Medicine. There he met Dr. Keith Sterner, and the two of them collaborated on the development of the Grymer/Sterner™ method of Left Displaced Abomasum (LDA) repair using the toggle suture. He was a frequent author and co-author on a number of LDA repair studies. In addition, he made numerous presentations on this topic.

Dr. Grymer had a rich and varied career in veterinary medicine. He had the opportunity to work on large dairy operations in both Lybia and Saudi Arabia, and to teach at Michigan State University for several years, before returning to Denmark. He was an avid outdoorsman who loved nature, hunting and fishing. He leaves behind his wife, Anne Marie, and two adult children, Catherine and Christopher. His wit, humor, intellect, and friendship will be greatly missed.



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