Reduced opiate use after total knee arthroplasty using computer-assisted cryotherapy.

Area of Science:

• Orthopedic Surgery
• Pain Management
• Rehabilitation Medicine

Background:

• Total knee arthroplasty (TKA) often results in significant early postoperative pain, despite current pain management strategies.
• Advances in anesthesia have improved TKA, yet pain remains a challenge, impacting patient recovery.
• Outpatient TKA pathways necessitate effective pain control for successful patient outcomes.

Purpose of the Study:

• To evaluate the efficacy of computer-assisted cryotherapy (CAC) in reducing pain and opioid consumption after TKA.
• To assess the impact of CAC on pain and opioid requirements in patients undergoing outpatient TKA.
• To determine if CAC improves the early postoperative experience for TKA patients.

Main Methods:

• A prospective, double-blind, randomized controlled trial involving 60 TKA patients.
• Patients received either cold (10-12°C) or warm (21°C) CAC for 7 days post-surgery.
• Pain (NRS-pain) and opioid consumption were monitored for 4 days; secondary outcomes assessed at 1, 2, and 6 weeks.

Main Results:

• Both CAC groups showed pain reduction, with a statistically significant reduction in the cold group (P=0.008).
• The cold CAC group used significantly fewer opioids (47 tablets) compared to the warm group (83 tablets) in the first 4 days (P=0.001).
• No significant differences were observed in secondary outcomes like swelling, hematoma, or patient-reported measures between groups.

Conclusions:

• Postoperative computer-assisted cryotherapy (CAC) is a valuable addition for TKA patients in outpatient settings.
• CAC effectively reduces experienced pain and opioid consumption in the initial days following TKA.
• The findings support the integration of CAC into standard postoperative care for TKA to enhance patient recovery.