Table 3.

Local Complications and Reoperation After Propensity score Matching.

	OPLL (N = 7169)	CSM (N = 7169)	P Value
Local complications
Surgical site infection	155 (2.2%)	153 (2.1%)	.91
Paralysis	75 (1.1%)	45 (.6%)	.006**
Meningitis	9 (.1%)	17 (.2%)	.12
Spinal fluid leakage	28 (.4%)	9 (.1%)	.002**
Hematoma	61 (.9%)	47 (.7%)	.18
At least one complication	321 (4.5%)	266 (3.7%)	.020*
Reoperation
Treatment for wound trouble	133 (1.9%)	95 (1.3%)	.011*
Debridement	7 (.1%)	3 (.04%)	.21
At least one reoperation	142 (2.0%)	103 (1.4%)	.012*

Data is presented as n (%). Significant values are given as follows. *P < .05, **P < .01.

Abbreviation: OPLL, ossification of posterior longitudinal ligament; CSM, cervical spondylotic myelopathy.