Closed Suction Drainage after Primary Total Knee Arthroplasty: A Prospective Randomized Trial

Area of Science:

• Orthopedic Surgery
• Arthroplasty Research
• Surgical Drainage Techniques

Background:

• The use of closed suction drainage (CSD) following total knee arthroplasty (TKA) remains a debated topic in orthopedic surgery.
• Variations in surgical techniques complicate comparisons between existing studies on CSD efficacy.

Purpose of the Study:

• To evaluate the benefits of closed suction drainage (CSD) versus no drainage after primary total knee arthroplasty (TKA).
• To assess outcomes in patients undergoing TKA with exsanguination, tourniquet use, and no hemostasis.

Main Methods:

• A prospective randomized trial involving 36 patients with strict inclusion/exclusion criteria.
• Patient evaluation included preoperative, daily inpatient, and 6-week, 3-month, 6-month, and 1-year postoperative follow-ups.

Main Results:

• CSD use resulted in a significant hemoglobin drop of ~1 g/dL (p=0.012).
• No significant differences were observed in knee circumference, wound secretion, wound healing, or range of motion.
• Patients without CSD reported higher pain levels during inpatient stay and at 6 weeks (p=0.012).
• All patients met discharge criteria by day 9 in both groups.

Conclusions:

• Closed suction drainage (CSD) after primary TKA did not provide essential advantages in this study.
• CSD was associated with increased postoperative blood loss.
• Surgical technique significantly impacts the results and should be carefully considered when evaluating CSD use in TKA.