Acetabular Fractures with Central Hip Dislocation: A Retrospective Consecutive 50 Case Series Study Based on AO/OTA 2018 Classification in Midterm Follow-Up

Table 2

Advanced stage posttraumatic arthritis-associated risk factor using Cox proportional hazard regression.

	Crude HR (95% CI)	Adjusted HR (95% CI)
Age
<65	Ref.
65+	1.49 (0.44-5.09)
Sex
Female	Ref.	Ref.
Male	5.26 (5.26-1.13)	6.00 (1.20-30.0)
BMI
<24	Ref.
≥24	0.97 (0.30-3.19)
ISS
<17	Ref.
17+	1.64 (0.48-5.62)
AO/OTA classification
62B	Ref.
62C	1.94 (0.59-6.38)
Infra/juxta/transtectal
1	3.15 (0.32-30.7)
2	Ref.
3	1.50 (0.39-5.80)
Marginal impaction
No	Ref.	Ref.
Yes	5.80 (1.23-27.3)	3.91 (0.77-19.8)
Bladder injury
No	Ref.
Yes	2.67 (0.70-10.1)
Sciatic nerve injury
No	Ref.	Ref.
Yes	4.39 (1.15-16.8)	3.68 (0.84-16.1)
Central dislocation type
1	Ref.
2	2.68 (0.31-22.9)
3	4.74 (0.55-41.0)
Matta reduction criteria
Anatomical	Ref.
Imperfect	1.18 (0.26-5.31)
Poor	3.68 (0.82-16.5)

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