Following a return-to-play checklist developed by sports medicine researchers at the Rothman Institute in Philadelphia may help decrease the incidence of injury to the knee following anterior cruciate ligament (ACL) reconstruction.
Using the checklist, a team of researchers led by Kevin B. Freedman, MD, associate professor of orthopaedic surgery and sports medicine at the Rothman Institute and Thomas Jefferson University compared clinical outcomes to determine when it was safe for athletes to return to play following primary ACL reconstruction.
“Historically after ACL reconstruction, orthopaedic surgeons would use time as the major criterion for determining when athletes should return,” Freedman says, in a media release from the American Academy of Orthopaedic Surgeons (AAOS).
“The concept behind the return to play checklist was that the calendar didn’t optimally determine functional status to see if the patient had thoroughly rehabilitated or if they remained at risk for reinjury. With our latest study, we were able to put the checklist into motion to compare athletes whose return to play was determined by the checklist to those athletes whose return to play was determined by traditional clinical judgement.”
This evidence-based checklist includes seven objective measures—including physical exam findings, functional testing (hop and agility testing, movement assessment for jumping and landing mechanics), and a functional outcome score.
Patients aged 15 to 35 undergoing primary ACL reconstruction were evaluated using the checklist by a trained physical therapist, 6 to 12 months postoperatively, prior to return to sports. Once they returned to play, patients were followed prospectively to determine the incidence of injury to the knee.
The control group used for comparison included patients aged 15 to 35 who underwent ACL reconstruction between October 2012 and October 2014, and were cleared to return to sports by “usual clinical judgment” prior to the development of the checklist, the release explains.
The researchers found that patients experienced significant decrease in overall ipsilateral knee injury in the checklist group (3.3%) compared to the control group (9.8%) (p = 0.03); and there was a reduction in ipsilateral ACL tear in the checklist group (3%) compared to the control group (6.6%) that did not reach significance (p = 0.12).
In addition, there was a significant reduction in overall contralateral knee injury in the checklist group (0.8%) compared to the control group (5.6%) (p = 0.02). Also, there was a significant decrease in contralateral ACL tear in the checklist group (0.8%) compared to the control group (5.1%) (p = 0.03).
Among the athletes who were evaluated, 40% of those who the researchers subjectively thought were ready to return, failed the checklist. However, when the athletes received further training in the areas they failed, most were able to pass within 6 weeks.
Athletes are typically tested 7 to 8 months following surgery, and it can be delayed up to 9 months. Patients need to pass six of the seven criteria, and if they fail, the patient receives an additional 6 weeks of training, the release continues.
The study was presented recently during the AAOS annual meeting.
[Source(s): American Academy of Orthopaedic Surgeons, PR Newswire]