From the Journals

Early meniscal surgery on par with active rehab in under 40s


 

FROM OARSI 2022

Early meniscal surgery does not appear to be better than a program of exercise and education in improving knee outcomes in young adults with meniscal tears, according to the results of the randomized controlled DREAM trial presented at the OARSI 2022 World Congress.

Indeed, similar clinically relevant improvements in knee pain, function, and quality of life at 12 months were seen among participants in both study arms.

“Our results highlight that decisions on surgery or nonsurgical treatment must depend on preferences and values and needs of the individuals consulting their surgeon,” Søren T. Skou, PT, MSc, PhD, reported during one of the opening sessions at the meeting sponsored by the Osteoarthritis Research Society International.

The lack of superiority was contrary to the expectations of the researchers who hypothesized that early surgical intervention in adults aged between 18 and 40 years would be more beneficial than an active rehabilitation program with later surgery if needed.

Although the results do tie in with the results of other trials and systematic reviews in older adults the reason for looking at young adults specifically, aside from the obvious differences and the origin of meniscal tears, was that no study had previously looked at this population, Dr. Skou explained.

Assembling the DREAM team

The DREAM (Danish RCT on Exercise versus Arthroscopic Meniscal Surgery for Young Adults) trial “was a collaborative effort among many clinicians in Denmark – physical therapists, exercise physiologists, and surgeons,” Dr. Skou observed.

In total, 121 adults with MRI-verified meniscal tears who were eligible for surgery were recruited and randomized to either the early meniscal surgery group (n = 60) or to the exercise and education group (n = 61). The mean age was just below 30 years and 28% were female

Meniscal surgery, which was either an arthroscopic partial meniscectomy or meniscal repair, was performed at seven specialist centers. The exercise and education program was delivered by trained physical therapists working at 19 participating centers. The latter consisted of 24 sessions of group-based exercise therapy and education held over a period of 12 weeks.

Participants randomized to the exercise and education arm had the option of later meniscal surgery, with one in four eventually undergoing this procedure.

No gain in pain

The primary outcome measure was the difference in the mean of four of the subscales of the Knee Injury and Osteoarthritis Outcome Score (KOOS4) from baseline to 12-month assessment. The KOOS4 looks at knee pain, symptoms, function in sport and recreation, and quality of life.

“We considered a 10-point difference between groups as clinically relevant,” said Dr. Skou, but “adjusting for the baseline differences, we found no [statistical] differences or clinically relevant differences between groups.”

Improvement was seen in both groups. In an intention-to-treat analysis the KOOS4 scores improved by 19.2 points and 16.4 points respectively in the surgery and exercise and education groups, with a mean adjusted difference of 5.4 (95% confidence interval, –0.7 to 11.4). There was also no difference in a per protocol analysis, which considered only those participants who received the treatment strategy they were allocated (mean adjusted difference, 5.7; 95% CI, –0.9 to 12.4).

Secondary outcomes were also similarly improved in both groups with clinically relevant increases in all four KOOS subscale scores and in the Western Ontario Meniscal Evaluation Tool (WOMET).

While there were some statistical differences between the groups, such as better KOOS pain, symptoms, and WOMET scores in the surgery group, these were felt unlikely to be clinically relevant. Likewise, there was a statistically greater improvement in muscle strength in the exercise and education group than surgery group.

There was no statistical difference in the number of serious adverse events, including worsening of symptoms with or without acute onset during activity and lateral meniscal cysts, with four reported in the surgical group and seven in the exercise and education group.

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