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Review
. 2022 Dec 15;23(1):1099.
doi: 10.1186/s12891-022-06079-x.

Hidden blood loss of minimally invasive hybrid lumbar interbody fusion: an analysis of influencing factors

Zhong Dai  1 , Da Peng Feng  1 , Kang Long Wu  1 , Jie Yang Zhu  1 , Zheng Wei Li  2
Affiliations
Review

Hidden blood loss of minimally invasive hybrid lumbar interbody fusion: an analysis of influencing factors

Zhong Dai et al. BMC Musculoskelet Disord. .

Abstract

Background: Lumbar interbody fusion(LIF) is the leading way to treat Lumbar Degenerative Diseases(LDD). At present, there is a lack of research on the influencing factors of hidden blood loss in minimally invasive hybrid lumbar interbody fusion. This study comprehensively explores the definite factors affecting the hidden blood loss in minimally invasive hybrid lumbar interbody fusion.

Materials and methods: One hundred patients with Lumbar degenerative diseases who underwent minimally invasive hybrid lumbar interbody fusion in our center were included. Demographics, laboratory data, surgical data, and radiographic data were collected. The Gross equation and Sehat equation were used to calculate the estimated value of hidden blood loss. Multi-factor linear regression analysis was used to determine the influencing factors of hidden blood loss.

Result: We reviewed and collected 100 patients who underwent minimally invasive hybrid approach, mean age 65 ± 10 years, male: female 37:63; 17 patients of diabetes and 83 patients of non-diabetes; Total blood loss was 645.59 ± 376.37 ml, hidden blood loss was 421.39 ± 337.45 ml, the hidden blood loss percentage was 57 ± 26%. Results from the multi-factorial linear regression model: Diabetes (p < 0.05), hypertension (p < 0.05), psoas thickness (p < 0.05) and dorsal extensor group thickness (p < 0.05) were potential risk factors for postoperative hidden blood loss.

Conclusion: Although minimally invasive hybrid approach is minimally invasive surgery, there is still a significant amount of hidden blood loss. There is a greater risk of blood loss in diabetes, hypertension and preoperative MRI assessment of thickness of the psoas, thickness of the dorsal extensor group.

Keywords: Hidden blood loss; Lumbar interbody fusion; Risk factors.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Diagram of the method used to measure the psoas (a) dorsal extensor group (b) and subcutaneous fat (c) at the leval of L4 using axis views was determined on T2-weighted MRI
See this image and copyright information in PMC

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