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. 2020 Sep 8;478(10):2390-2398. doi: 10.1097/CORR.0000000000001463

Table 4.

Summary of the different validation studies done for the SLICS classification and their notable study characteristics

Study Patient cases Number and type of observers Geographical diversity of where observers work CT/MRI availability for each patient case Case selection method Original SLICS authors involved?
Vaccaro et al. [41] 11 20 (five neurosurgeons, 15 orthopaedic spine surgeons) Five countries Not reported Self-selected Original article
Stone et al. [39] 50 Five fellowship-trained spine surgeons Two countries 100% for CT, 70% for MRI Consecutive case series Yes
Lee et al. [28] 75 Three (one spine surgeon, one resident, one radiologist) South Korea only, single institution 100% for both CT and MRI Cases selected for clarity, only operative cases No
Van Middendorp et al. [44] 51 12 (five fellowship-trained spine surgeons, seven spine fellows) Nine countries 100% CT, 41% MRI Consecutive case series No
Kanagaraju et al. [24] 34 13 spine surgeons from STSG ISCS Four countries Not reported Consecutive case series No

SLICS = Subaxial Injury Classification and Severity Scale; STSG ISCS = Spine Trauma Group of the International Spinal Cord Society.