Published online Oct 18, 2022. doi: 10.5312/wjo.v13.i10.911
Peer-review started: June 7, 2022
First decision: August 4, 2022
Revised: August 18, 2022
Accepted: September 12, 2022
Article in press: September 12, 2022
Published online: October 18, 2022
Processing time: 132 Days and 4.2 Hours
Osteoarthritis (OA) is the most common cause of pain and disability, predominantly affecting the knee. The current management of knee OA falls short of completely stopping disease progression, particularly in Kellgren-Lawrence (KL) grade 3 and 4 knee OA. As such, joint replacement is often recommended, although only 15%-33% of candidates accept it. Alternative therapeutic options are still needed to prevent the progression of joint damage and delay the need for knee arthroplasty.
To investigate the effect of adjunctive platelet rich plasma (PRP) and hyaluronic acid (HA) after arthroscopic debridement in KL grade 3 and 4 knee OA.
This retrospective cohort study used the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score and WOMAC sub-scores (pain, stiffness, and function) to assess 21 patients, grouped according to medical record data of treatment received: Arthroscopic debridement (n = 7); arthroscopic debridement with PRP (n = 7); or arthroscopic debridement with HA (n = 7). WOMAC scores and sub-scores at baseline and at 3 mo and 5 mo posttreatment were recorded. The three-group data were statistically analyzed using the tests of paired t, one-way analysis of variance, and post hoc least significant difference.
All three treatment groups showed significant improvements in WOMAC score and sub-scores from before treatment to 3 mo and 5 mo after treatment. However, the arthroscopic debridement with PRP treatment group, in particular, showed a significantly lower WOMAC pain score than the group who received arthroscopic debridement alone at 5 mo after the procedure (P = 0.03).
Compared to arthroscopic debridement alone, adjunctive PRP after arthroscopic debridement significantly lessened the patients’ pain symptom.
Core Tip: This manuscript highlights the alternative approaches in managing knee osteoarthritis of Kellgren-Lawrence grade 3 and 4. Outcomes of arthroscopic debridement, arthroscopic debridement with platelet-rich plasma (PRP), or arthroscopic debridement with hyaluronic acid were evaluated prior to treatment and at 3 mo and 5 mo after the procedure. According to the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score and sub-scores (pain, stiffness, function), arthroscopic debridement with PRP provided significantly lower pain than arthroscopic debridement after treatment, however neither treatment was superior in the ability to improve total WOMAC score.