Table 7.

Classification of Fracture Type and Complications.

Complication	Type of Fracture	No. of Patients (% of Total Patients)
Pin infection	C1, C2 C2 unspecified C2 odontoid type II C2 odontoid type III C4 C5	1 (0.8) 2 (1.7) 1 (0.8) 1 (0.8) 1 (0.8) 1 (0.8)
Loose pin	C2 unspecified C2 type II	1 (0.8) 1 (0.8)
Pain	C1, C2, C7 C2 unspecified C2 odontoid type II C2 odontoid type III C2 hangman’s unspecified C2 hangman’s type II C2, C3 C2 (type II), C6 flexion-compression C2, C3, C7 C4, C5, C6, C7 C5, C6, C7 C6, C7 C7	1 (0.8) 4 (3.3) 2 (1.7) 3 (2.5) 4 (3.3) 2 (1.7) 2 (1.7) 1 (0.8) 1 (0.8) 1 (0.8) 1 (0.8) 2 (1.7) 1 (0.8)
Decreased range of motion	C1 nondisplaced C1, C2 C2 unspecified C2 odontoid type II C2 odontoid type III C2 hangman’s unspecified C2 hangman’s type II C2 hangman’s atypical C2, C3 C2 (atypical type III), C5, C6 C5	1 (0.8) 1 (0.8) 1 (0.8) 1 (0.8) 3 (2.5) 5 (4.1) 1 (0.8) 1 (0.8) 1 (0.8) 1 (0.8) 1 (0.8)
Thoracic skin ulcers	C2 fracture, odontoid type III C2 fracture, nondisplaced C1, C2	1 (0.8) 1 (0.8) 1 (0.8)
Dysphagia	C1 and C2 fracture, unspecified C5-C6 flexion/compression fracture	1 (0.8) 1 (0.8)