Skip to content

Comparing Vitamin C by injection and by mouth to Reduce Tissue Damage During Knee Replacement Surgery in Older Adults

Comparison of Oral Liposomal and Intravenous Vitamin C on Tourniquet-Induced Ischemia-Reperfusion Injury in Elderly Patients Undergoing Total Knee Arthroplasty (TKA): A Prospective Randomized Open Label Placebo Controlled Trial - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2026/07/113780
Enrollment
90
Registered
2026-07-09
Start date
Unknown
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: M179- Osteoarthritis of knee, unspecified

Interventions

Intervention1: Intravenous vitamin C: Intravenous vitamin C 5 g in 100 ml normal saline, administered 1 hour before shifting to OT Intervention2: Liposomal vitamin C 5 g orally: Liposomal vitamin C 5

Sponsors

Research section, AIIMS, Delhi
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Age more than 65 years Undergoing unilateral primary TKA ASA Physical Status 1-3 Use of tourniquet during surgery Informed consent obtained

Exclusion criteria

Exclusion criteria: Known hypersensitivity to vitamin C Renal insufficiency (eGFR less than 30 ml per min) History of oxalate kidney stones Active infection autoimmune inflammatory disease Participation in another interventional trial within 30 days

Design outcomes

Primary

MeasureTime frame
Reducing MDA levels at 5 minuteTimepoint: at 5 minute after deflating torniquet

Secondary

MeasureTime frame
Reducing MDA Malondialdehyde levels Serum Vitamin C IL 6 Hypoxanthine Postoperative pain by VAS score Functional recovery by Knee Society Score Delirium Incidence of CRPS Timepoint: MDA levels at baseline 30 minutes of torniquet deflation Level of serum Vitamin C IL 6 Hypoxanthine at baseline 5 minutes postreperfusion & 30 minutes post torniquet deflation Postoperative pain by VAS score at 0 6 12 24 hours & 3 months postoperatively Functional recovery by Knee Society Score preoperatively & at 3 months Delirium 24 hours postoperatively Incidence of CRPS 3 months postoperatively

Countries

India

Contacts

Public ContactNeha Garg

All India Institute Of Medical Sciences, Delhi, India

nehagargpgimer@gmail.com09711896795

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Aug 10, 2026