Knee surgery drain debate: new study compares blood loss with and without drain

NCT ID NCT07494708

Completed Knowledge-focused Sponsor: Shifa International Hospital Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether placing a drain after knee replacement surgery affects how much hemoglobin drops and whether patients need a blood transfusion. 102 patients were randomly assigned to get a drain or not. The goal is to see if drains help or hurt in terms of blood loss. Results could help guide standard practice.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Closed suction drain insertion
What this could lead to: If this study shows clear differences, it could help surgeons decide whether to use a drain after knee replacement, potentially reducing blood loss and transfusion needs.
What could go wrong: This is a small, completed study (102 patients) that only measures short-term outcomes. Results may not apply to all patients or settings, and the best approach may still depend on individual factors.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

osteoarthritis, knee osteonecrosis Postoperative Hemorrhage rheumatoid arthritis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

KNEE OSTEOARTHRITIS TOTAL KNEE ARTHROPLASTY

Contacts and locations

Locations

Shifa International Hospital, Islamabad

Islamabad, Fedral, 44000, Pakistan

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