Table 2.

Annual volume of surgically treated CSM cases at each site.

Site	PI	Ventral	Dorsal Laminectomy + Fusion	DorsalLaminoplasty
1. Lahey Hospital & Medical Center	Subu Magge, MD	52	38	2
2. University of Medicine and Dentistry- New Jersey	Robert Heary, MD	15	18	1
3. University of Utah	Erica Bisson, MD	36	18	9
4. Cleveland Clinic Foundation	Edward C. Benzel, MD	23	37	2
5. Thomas Jefferson University	Todd Albert, MD	200	75	25
6. Massachusetts General Hospital	Jean-Valery Coumans, MD	14	2	10
7. Washington University- St. Louis	Daniel Riew, MD	12	1	7
8. MetroHealth	Michael Steinmetz, MD	45	33	15
9. Medical College of Wisconsin	Marjorie Wang, MD	45	70	1
10. Mount Sinai Medical Center	Tanvir Choudhri, MD	90	58	11
11. University of Toronto	Michael Fehlings, MD	57	65	16
Total	Annual Cases	589	415	99