Department of Orthopaedic Surgery

John R. Fowler Jr., MD

  • Associate Professor
  • Assistant Dean for Medical Student Research
  • Associate Program Director, Hand Fellowship
  • Associate Residency Program Director


2020 Sterling Bunnell Traveling Hand Fellow

Education & Training

  • MD, Temple University School of Medicine, Philadelphia, PA
  • Residency: Temple University School of Medicine, Philadelphia, PA
  • Fellowship: University of Pittsburgh Medical School, Pittsburgh, PA

Representative Publications

1. Fowler JR, Gaughan JP, Ilyas AM. The sensitivity and specificity of ultrasound for the diagnosis of carpal tunnel syndrome: a meta-analysis. Clin Ortho Rel Res. 2011 Apr;469(4):1089-94. Epub 2010 Oct 21. PMID: 20963527.

2. Fowler JR, Maltenfort MM, Ilyas AM. Ultrasound as a First-line Test in the Diagnosis of Carpal Tunnel Syndrome: A Cost-effectiveness Analysis. Clin Orthop Relat Res. 2013. 471(3):932-937. Epub 2012 Nov 6. PMID: 23129465.

3. Fowler JR, Munsch M, Tosti R, Hagberg WC, Imbriglia JE. Comparison of Ultrasound and Electrodiagnostic Testing for Diagnosis of Carpal Tunnel Syndrome Using a Validated Clinical Tool as the Reference Standard. J Bone Joint Surg Am. 2014; 96(17):e148. PMID: 25187592.

4. Fowler JR, Munsch M, Huang Y, Hagberg WC, Imbriglia JE. Pre-operative electrodiagnostic testing predicts time to resolution of symptoms after carpal tunnel release. J Hand Surg Eur Vol. 2015. Epub ahead of print. PMID: 25770901.

5. Fowler JR, Hirsch D, Kruse K. The Reliability of Ultrasound Measurements of the Median Nerve at the Carpal Tunnel Inlet. J Hand Surg Am. 2015;40(10):1992-1995. PMID: 26319771.

6. Fowler JR, Cipolli W, Hanson T. A Comparison of Three Diagnostic Tests for Carpal Tunnel Syndrome Using Latent Class Analysis. J Bone Joint Surg Am. 2015; 97:1958-1961.

Pubmed link

Research Interests

My clinical research focuses on the use of musculoskeletal ultrasound to improve the accuracy and efficiency of diagnosis for carpal tunnel syndrome and to improve patient satisfaction. Ultrasound is also used to track patient progress after intervention and to compare changes in ultrasound characteristics to changes in patient rated outcome measurements. My basic science research focuses on biomechanical analysis of common fracture fixation techniques and the use of stem cells to improve recovery after repair of peripheral nerve injuries.

Research Grants

  1. Clinical Trial for Surgery of the Ulnar Nerve (SUN) at the Elbow 
    Grant#: U01AR073485 
    Role: co-investigator 
    Supporting Agency: NIH 
    Performance Period: 2/2020 – 2/2025 
    Amount: $10,000 
  2. Characterizing dynamic thumb metacarpal subsidence during functional tasks after trapeziectomy 
    Grant #:  R21AR081556 
    Name of PD/PI: Anderst, William; Role: co-PI 
    Source of Support: National Institutes of Health 
    Project/Proposal Start and End Date: (MM/YYYY) (if available): 09/2022 – 03/2024 
    Total Award Amount (including Indirect Costs): $437,250