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Blood loss with total knee arthroplasty
A T Berman1, A E Geissele, S J Bosacco
1Department of Orthopedic Surgery and Rehabilitation, Hahnemann University Hospital, Philadelphia, PA 19102.
Clinical Orthopaedics and Related Research
|September 1, 1988
Summary
Total knee arthroplasty (TKA) causes significant blood loss, averaging 2.2 units per procedure. Constrained TKAs showed higher blood loss, while other factors did not significantly impact it.
Area of Science:
- Orthopedic Surgery
- Surgical Blood Loss Analysis
Background:
- Total knee arthroplasty (TKA) is associated with substantial perioperative blood loss.
- Managing blood loss is a critical aspect of TKA patient care.
Purpose of the Study:
- To quantify blood loss in patients undergoing total knee arthroplasty (TKA).
- To identify factors influencing blood loss during TKA procedures.
Main Methods:
- Retrospective analysis of 140 TKAs (108 patients).
- Categorization of patients into transfused (70) and non-transfused (70) groups.
- Analysis of blood loss based on TKA type, diagnosis, anesthesia, and surgical techniques.
Main Results:
- Overall mean blood loss was 2.2 units per TKA.
- The transfused group averaged 2.6 units, while the non-transfused group averaged 1.8 units.
- Insertion of a constrained TKA significantly increased blood loss; other factors showed no statistical effect.
Conclusions:
- Significant blood loss is inherent to TKA, with a notable portion collected postoperatively.
- Constrained TKA design is a factor contributing to increased blood loss.
- Further research into blood conservation strategies for TKA is warranted.