James Grant Thomson, MD, FACS, MSc

Professor of Surgery (Plastic); Director, Yale Hand & Microsurgery Program

Physician Biography

Dr. Thomson's background includes training in Plastic Surgery, Hand Surgery, and Reconstructive Microsurgery. His special interests include endoscopic carpal tunnel release, trigger finger treatment, Dupuytren’s contracture, arthritic hand reconstruction, wrist surgery, brachial plexus reconstruction, peripheral nerve surgery, occupational disorders of the upper extremity, and trauma-related pain. His clinical practice also includes reconstructive microsurgery of the head and neck, chest and breast, abdominal wall, pelvis and genitourinary systems (male and female), and lower extremity.

Clinical Interests

  • Amputation Stumps
  • Bones of Upper Extremity
  • Arthrogryposis
  • Brachial Plexus
  • Carpal Tunnel Syndrome
  • Ectromelia
  • Finger Joint
  • Fingers
  • Forearm
  • Hand
  • Hand Deformities
  • Metacarpophalangeal Joint
  • Metacarpus
  • Musculoskeletal Abnormalities
  • Musculoskeletal Diseases
  • Nerve Compression Syndromes
  • Peripheral Nervous System Neoplasms
  • Peripheral Nerves
  • Rheumatic Diseases
  • Syndactyly
  • Tarsal Tunnel Syndrome
  • Tendons
  • Tennis Elbow
  • Thumb
  • Wrist
  • Wrist Joint
  • Polydactyly
  • Ulnar Nerve Compression Syndromes
  • Limb Deformities, Congenital
  • Mononeuropathies
  • Median Neuropathy
  • Ulnar Neuropathies
  • Radial Neuropathy
  • Cubital Tunnel Syndrome
  • Brachial Plexus Neuropathies
  • Complex Regional Pain Syndromes
  • Brachial Plexus Neuritis
  • Upper Extremity Deformities, Congenital
  • Hand Joints
  • Carpal Joints
  • Carpometacarpal Joints
  • Hand-Arm Vibration Syndrome
  • Arachnodactyly
  • Brachydactyly
  • Peripheral Nerve Injuries

Patient Care

Accepts new patients? Yes
Patient Type: Adult; Child
Referrals: From patients or physicians

Patient Care Organizations

Surgery: Plastic & Reconstructive Surgery: Craniofacial Program; Hand and Microsurgery Program

Hand & Upper Extremity Surgery

Yale Cancer Center: Breast Center

Yale Medicine

Office of Cooperative Research

Board Certifications

  • Hand Surgery AB of Surgery (1994)

  • Plastic Surgery AB of Plastic Surgery (1995)

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Contact Info

James Grant Thomson, MD, FACS, MSc
Patient Care Locations
Yale Plastic SurgeryYale Physicians Building
800 Howard Avenue, Ste 4th Floor

New Haven, CT 06519
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Yale Orthopedic Building1445 Boston Post Road
Guilford, CT 06437
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Mailing Address
PO Box 208041
New Haven, CT 06520-8041

Curriculum Vitae

Work of flexion during triggering

The graph depicts the work of complete finger flexion through excursion of the flexor digitorum profundus tendon from 0 to 30 mm. The 5 lines indicate 5 identical trials of the same condition. The load exerted on the tendon rises sharply until approximately 23 mm, then experiences a sharp dip, then rises again at approximately the same slope as before, indicating that triggering occurred. TNC, tension normalized by circumference.