Analgesic use may not decrease in the first postoperative year in patients underwent total knee arthroplasty due to...

Area of Science:

• Orthopedic Surgery
• Pain Management
• Osteoarthritis Research

Background:

• Total knee arthroplasty (TKA) aims to alleviate pain and decrease analgesic reliance in advanced knee osteoarthritis.
• Persistent pain and continued analgesic use post-TKA occur in some patients.
• This study investigates changes in analgesic consumption before and after TKA.

Purpose of the Study:

• To compare one year of analgesic consumption before and after TKA within the same patient cohort.
• To determine if TKA leads to a significant reduction in analgesic use.
• To identify factors influencing post-TKA analgesic consumption.

Main Methods:

• Retrospective cohort study analyzing patient records and prescription data.
• Quantified analgesic use by converting all medications to oral morphine equivalents (OME).
• Assessed patient outcomes using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores.

Main Results:

• Significant improvement in WOMAC scores was observed post-TKA.
• Mean analgesic consumption decreased post-TKA, but this change was not statistically significant.
• Patient age and pre-operative analgesic use were the strongest predictors of post-operative consumption.

Conclusions:

• The first year after TKA may not show a substantial reduction in patient analgesic use.
• Age and pre-operative analgesic consumption are critical factors affecting post-TKA pain medication needs.
• Further research may be needed to optimize pain management strategies following TKA.