Issei Komatsu, MD, PhD

Issei Komatsu, MD, PhD, is board certified in orthopedic surgery, and plastic and reconstructive surgery. In addition to extensive training in orthopedic surgery for hand, wrist, elbow and shoulder, he has specialized training in trauma care and plastic surgery for hand and upper extremity. His unique expertise allows him to offer a wide variety of treatment options, giving patients the opportunity to select the option that best suit their needs. 
 
Dr. Komatsu believes integrity, trustworthiness and transparency are the fundamentals for the healthiest relationships with patients and their health care teams. He wants patients to be empowered to participate in making decisions about their treatment plans. Away from work, he enjoys skiing, trail running, camping and tennis. 

The conditions Dr. Komatsu treats include:

• Fracture care in upper extremity (from shoulder to fingertip)
• Degenerative arthritis in upper extremity (from shoulder to hand)
• Nerve entrapment syndromes in upper extremity (carpal tunnel syndrome, cubital tunnel syndrome, Guyon canal syndrome, etc.)
• Sports related care in upper extremity (rotator cuff tear, ligament conditions in shoulder, elbow and wrist, ulnar sided wrist pain, etc.)
• Tendinitis/tenosynovitis in upper extremity (tennis elbow, De Quervain syndrome, trigger finger, etc.

Read the MultiCare Vitals Blog article on wrist injury, featuring Dr. Komatsu: Wrist injuries: When to see a doctor

• American Academy of Orthopaedic Surgeons
• American Society for Surgery of the Hand
• American Association for Hand Surgeons
• American Society of Plastic Surgeons
• Japan Society of Plastic and Reconstructive Surgery               

Komatsu, I., Lubahn, JD. Anatomy and biomechanics of the thumb carpometacarpal joint. Operative techniques in Orthopaedics, Volume 28, Issue 1, March 2018, Pages 1-5.

Komatsu, I., Arishima, Y., Shibahash,i H., Yamaguchi, T., Minamikawa, Y. Outcomes of Surface Replacement Proximal Interphalangeal Joint Arthroplasty Using the Self Locking Finger Joint Implant: Minimum Two Years Follow-up. Hand (N Y). 2017 Sept.

Komatsu, I., Wang, JH-C., Iwasaki, K., Shimizu, T., Okano, T. The effect of tendon stem/progenitor cell (TSC) sheet on the early tendon healing in a rat Achilles tendon injury model. Acta Biomaterialia. 2016, Sept; 42: 136–146. 

Komatsu, I., Yang, J., Zhang, Y., Levin, LS., Erdmann, D., Klitzman, B., Hollenbeck, ST. Interstitial engraftment of adipose-derived stem cells into an acellular dermal matrix results in improved inward angiogenesis and tissue incorporation. Journal of Biomedical Materials Research, Part A. 2013, Oct; 101(10): 2939-47. 

Hollenbeck, ST., Senghaas, A., Komatsu, I., Zhang, Y., Erdmann, D., Klitzman, B. Tissue engraftment of hypoxic-preconditioned adipose-derived stem cells improves flap viability. Wound Repair and Regeneration. 2012, Nov; 20(6): 872-878. 

Hollenbeck, ST., Komatsu, I., Woo, S., Schoeman, M., Yang, J., Erdmann, D., Levin, LS. The current role of the vascularized-fibular osteocutaneous graft in the treatment of segmental defects of the upper extremity. Microsurgery. 2011, Mar; 31(3): 183-189. 

Komatsu, I., Bond, J., Selim, A., Tomasek, JJ., Levin, LS., Levinson, H. Dupuytren's fibroblast contractility by sphingosine-1-phosphate is mediated through non-muscle myosin II. Journal of Hand Surgery. 2010, Oct; 35(10): 1580-1588. 

Komatsu, I., Tokuda, Y., Shimada, G., Jacobs, JL., Onodera, H. Development of a simple model for predicting need for surgery in patients who initially undergo conservative management for adhesive small bowel obstruction. The American Journal of Surgery. 2010, Aug; 200(2): 215-223. 

Yang, J., Erdmann, D., Chang, JC., Komatsu, I., Zhang, Y., Wang, D.,Hodavance, MS., Hollenbeck, ST., Levinson, H., Klitzman, B., Levin, LS. A model of sequential heart and composite tissue allotransplant in rats. Plastic and Reconstructive Surgery.

Hollenbeck, ST., Woo, S., Komatsu, I., Erdmann, D., Zenn, MR., Levin, LS. Longitudinal outcomes and application of the subunit principle to 165 foot and ankle free tissue transfers. Plastic and Reconstructive Surgery. 2010, Mar; 125(3):924-34.