Efficacy of Extramedullary Femoral Component Alignment Guide System for Blood Saving after Total Knee Arthroplasty
- Author:
Suk Ha JEON
1
;
Ji Hun KIM
;
Jung Myung LEE
;
Eun Seok SEO
Author Information
1. Department of Orthopedic Surgery, National Medical Center, Seoul, Korea. machine411@korea.com
- Publication Type:Original Article
- Keywords:
Knee;
Extramedullary femoral component alignment guide;
Blood saving;
Bleeding;
Transfusion
- MeSH:
Arthroplasty;
Drainage;
Female;
Hemoglobins;
Hemorrhage;
Humans;
Knee;
Prevalence;
Vacuum
- From:The Journal of Korean Knee Society
2012;24(2):99-103
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To compare the extramedullary femoral alignment guide system with the conventional intramedullary alignment guide system for bleeding and transfusion rate after total knee arthroplasty (TKA). MATERIALS AND METHODS: Forty-nine female TKA patients were randomized into two groups: intramedullary (IM) group vs. extramedullary (EM) group. Drained volume of blood, hemoglobin concentration, hemoglobin drop, and transfusion rate were compared between the two groups. Wound problems, bleeding-related problems and thromboembolic complications were collected. RESULTS: The mean drained volume via vacuum drainage was less in the EM group than that in the IM group (482.9 mL vs. 266.8 mL, p=0.001). Hemoglobin at 5 days after surgery was higher in the EM group (9.3 g/dL vs. 9.9 g/dL, p=0.002) than that in the IM group. The drop in hemoglobin after 5 days was smaller in the EM group (3.5 g/dL vs. 2.9 g/dL, p=0.003) than that in the IM group. The EM group had a lower prevalence of allogeneic transfusion (45.0% vs. 20.5%, p=0.026) than that in the IM group. No significant complications developed in either group. CONCLUSIONS: The results suggest that the extramedullary femoral alignment guide technique is an advantageous method that can reduce the drained volume of blood and the allogeneic transfusion rate.
