2017 ISAKOS Biennial Congress ePoster #1003
Evaluation Of Return-To-Sport Rates One Year Following Anterior Cruciate Ligament Revision Surgery Through Clinical Evaluations And Magnetic Resonance Imaging
Matias Costa-Paz, MD, PhD., Buenos Aires, Buenos Aires ARGENTINA
Julieta Puig-Dubois, MD, Buenos Aires ARGENTINA
Carlos H. Yacuzzi, MD, Buenos Aires, BA ARGENTINA
Juan Pablo Zicaro, MD, Olivos, Buenos Aires ARGENTINA
Juan F. Astoul Bonorino, MD, Bella Vista, Buenos Aires ARGENTINA
Alejandro Rasumoff, MD, buenos aires, bs as ARGENTINA
Hospital Italiano de Bueno Aires, Capital Federal, Buenos Aires, ARGENTINA
FDA Status Not Applicable
Summary
This study showed a significant relationship between the graft signal pattern in magnetic resonance imaging and return to the sport in patients with ACL revision surgery.
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Abstract
Objective
The aim of this study was to evaluate return-to-sport rates in a series of patients one year following anterior cruciate ligament (ACL) revision surgery through clinical evaluations and magnetic resonance imaging (MRI).
Material And Method
We conducted a descriptive, prospective and longitudinal study that evaluated a series of patients that underwent ACL revision surgery between March 2014 and March 2015. They were evaluated at the one year postoperative mark using the Lysholm, IKDC, Tegner scores, KT-1000 arthrometer and MRI (3.0 T). The MRI determined the pattern signal and osteointegracion and we quantified the signal intensity of the graft using the signal/ noise quotient (SNQ) formula.
Results
A total of 18 male patients with an average age of 31 years old were evauated.
The average scores documented were: Lysholm 88, IKDC 80, Tegner prior to injury 9 and at the one year postoperative mark lowering to 4. The arthrometry (KT1000) at 20 newtons showed a difference of less than 3 mm in 88% of patients and 44% returned to their pre injury sport.
In the MRI, the neoligaments showed a heterogenous signal pattern in 34 % of patients and the SNQ showed optimum graft maturity in only 28%.
We found sinovial liquid in the bone-graft interface in 44% of the tunnels, that inferrs partial osteointegration.
The heterogenous signal pattern was present in 50% of the patients that did not return to pre injury sport activity. (Fisher's exact test: P = 0.043)
No singnificant differences were found in patients with auto or allografts.
Conclusions
Despite the acceptable clinical evaluation, only 44% of the patients retuned to their pre-injury sport activity one year after surgery. Results showed a significant relationship between the pattern signal in MRI and return to sport.
The MRI resulted a useful tool to evaluate patients athettic activity after one year revision ACL surgery.