Arthrodesis Rate and Patient Reported Outcomes After Anterior Lumbar Interbody Fusion Utilizing a Plasma-Sprayed Titanium Coated PEEK Interbody Implant: A Retrospective, Observational Analysis

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Fig. 1
The PTC PEEK interbody spacer system implanted in this study.
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Fig. 2
A) Three month post-op standing lateral radiograph demonstrating early bridging bone formation across the PTC PEEK spacer. B) Six month post-op CT coronal and sagittal images of the same subject demonstrating solid arthrodesis.

Table 1

Improvement in VAS back and leg scores at 9 months follow-up by subject subgroup.

	N	Improvement (VAS Back)	P (back)	Improvement (VAS Leg)	P (leg)
Overall	43	4.5	0.0001	4.1	0.0001
Age: <55 years	27	4.5	0.98	3.9	0.47
Age: >55 years	16	4.5	0.98	4.6	0.47
Female	23	4.4	0.73	4.4	0.54
Male	20	4.7	0.73	3.8	0.54
No Tobacco Use	35	4.6	0.62	4.3	0.55
Tobacco Use	8	4.1	0.62	3.5	0.55
Metabolic Comorbidity	25	4.4	0.82	4.3	0.68
No Metabolic Comorbidity	18	4.6	0.82	3.9	0.68
No Prior Surgery	33	4.7	0.44	4.1	0.78
Prior Surgery	10	4	0.44	4.4	0.78
Single-Level Surgery	23	4.5	0.93	3.7	0.35
Multilevel Surgery	20	4.6	0.93	4.7	0.35
No Worker's Comp	18	5.3	0.05	4.9	0.21
Worker's Comp	25	3.9	0.05	3.6	0.21
Standalone ALIF	11	5.2	0.28	4.8	0.44
ALIF + PSF	32	4.3	0.28	3.9	0.44
BMI <30	25	4.1	0.21	4.6	0.33
BMI >30	18	5.1	0.21	3.6	0.33
Spondylolisthesis	24	4.4	0.68	3.7	0.34
No Spondylolisthesis	18	4.7	0.68	4.7	0.34

Table 2

Average time to fusion by subject subgroup.