Table 3.

Procedure Subanalysis for Wound Complications.^a

	Total (N = 5803, 100%)		No Wound Complication (n = 5663, 97.6%)		Wound Complication (n = 140, 2.5%)
Procedure Subanalysis	n	%	n	%	n	%	P
Length of fusion
Short	3657	63.0%	3569	63.0%	88	62.9%	.968
Long	2146	37.0%	2094	37.0%	52	37.1%
Short fusion approach
Anterior	583	10.0%	570	10.1%	13	9.3%	.559
Posterior	1664	28.7%	1619	28.6%	45	32.1%
Combined	99	1.7%	95	1.7%	4	2.9%
Long fusion approach
Anterior	1715	29.6%	1700	30.0%	15	10.7%	<.0001
Posterior	1626	28.0%	1566	27.7%	60	42.9%
Combined	116	2.0%	113	2.0%	3	2.1%
Bone graftb
Yes	4049	69.8%	3958	69.9%	91	65.0%	.213
No	1754	30.2%	1705	30.1%	49	35.0%
Pelvic fixation
Yes	482	8.3%	459	8.1%	23	16.4%	.0004
No	5321	91.7%	5204	91.9%	117	83.6%
Osteotomy
Yes	837	14.4%	804	14.2%	33	23.6%	.002
No	4966	85.6%	4859	85.8%	107	76.4%
Intervertebral device insertion
Yes	2410	41.5%	2361	41.7%	49	35.0%	.113
No	3393	58.5%	3302	58.3%	91	65.0%

^aBoldface indicates P = .05.

^bBone graft refers to either autograft (Current Procedural Terminology [CPT] 20936, 20937, 20938), allograft (20930, 20931), or bone marrow aspirate (38220); pelvic fixation (22848); osteotomy (22206, 22207, 22208, 22210, 22212, 22214, 22216, 22220, 22222, 22224, 22226); intervertebral device insertion (22851).