A New Challenger to Take On ACL Injury


ACL Injury, The De-stabilizer 

Anterior Cruciate Ligament injuries are not going away. They are as relevant a problem today as ever-before, especially for our increasingly competitive sports world.

The crucial ligament (see what we did there?) is located inside the joint, providing rotational stability and preventing the tibia sliding out in front of the femur. ACL injuries range from Grade I, a mild sprain, through to Grade III, a complete tear of the ligament.  

Once the ligament has been torn there is a 15 times greater risk of a second ACL injury during the initial 12 months after ACL reconstruction1. It also doubles the likelihood of subsequently injuring the other knee2. No remorse there then.



The Challenger…

Donjoy is perhaps the best known and respected brand for ligament knee bracing. For the last 30 years they have developed the most proven-effective method of dealing with ACL injuries. With each new product, the design and technology has advanced to meet patient needs: from the thermoformable CE 2000, to the carbon-fiber Defiance and now the titanium A22.

‘Shoot me down and I won’t fall. I am titanium.’

The A22 has been in the US for a year now: tested and retested to ideally optimize its performance. Now, we’re pleased to release it internationally and while we’re at it, celebrate a year of great service to patients. Long may it continue!  


  What has A22 achieved?

   •    A22 has helped over 6000 people with ACL

        difficulties in just a year

   •    That’s over 500 per month

   •    Hundreds of retailers/clinicians are

         recommending A22

   •    It is sold in 4 countries

   •    Look out for many top athletes wearing A22!   









What makes A22 a worthy challenger?


The brace is custom made to the patient’s dimensions.

The unique Titanium structure allows the brace to be sleeker and lower profile without losing durability.

Anti-microbial coating mitigates odor, perfect for those who train hard.

The 4-Points-of-Leverage system decreases ACL strain by 50% for anterior-directed loads during weight-bearing and non weight-bearing activities, as well as significantly reducing tibial rotation 3, 4, 5.

The FourcePoint hinge engages resistance in the last 25° of extension, helping keep the knee out of potentially risky positions.

The brace prevents the knee from rotating internally during the gait cycle which reduces the risk of injury by placing the knee in a more stable position6.

A22 gives patients the confidence to return to sports.

Clinical Evidence

The biomechanics are clinically proven effective; a comprehensive brochure gives you a summary of the clinical research which has been conducted over the years and supports our ligament bracing.

1Paterno MV, Rauh MJ, Schmitt LC, Ford KR, Hewett TE. Incidence of contralateral and ipsilateral anterior cruciate ligament (ACL) injury after primary ACL reconstruction and return to sport. Clin J Sport Med. 2012 Mar;22(2):116-21.
2Wright RW, Magnussen RA, Dunn WR, Spindler KP, Ipsilateral Graft and Contralateral ACL Rupture at Five Years or More Following ACL Reconstruction., Journal of Bone and Joint Surgery, Am. 2011; 93:1159-1165.

3Beynnon BD, Pope MH, Wertheimer CM, Johnson RJ, Fleming BC, Nichols CE, Howe JG, Journal of Bone & Joint Surgery, Am. 1992; 74:1298-1312.
4Beynnon BD, Fleming BC, Peura G, Johnson RJ, Renstrom PA, Nichols CE, Pope. The Effect of Functional Knee Bracing in the Anterior Cruciate Ligament in the Weightbearing and Nonweightbearing Knee., 1995. 41st Annual Orthopedics Research Society Meeting.
5Beynnon BD, Johnson RJ, Fleming BC, Peura G, Renstrom PA, Nichols CE. The Effect of Functional Knee Bracing on the Anterior Cruciate Ligament in the Weightbearing and Nonweightbearing Knee., American Journal of Sports Medicine. 1997; 25(3):353-360.

6Théoret D, Lamontagne M., Study on 3-dimensional kinematics and electromyography of ACL deficient knee participants wearing a functional knee brace during running, Knee Surg Sports Traumatol Arthrosc. 2006 Jun;14(6):555-63.

Additional Studies

Silvers HJ, Mandelbaum BR. Prevention of Anterior Cruciate Ligament Injury in the Female Athlete., Br J Sports <ed. 2007; 41 (suppl):i52-i59
Griffn LY, Albohm MJ, Arendt, EA, et al., Understanding and Preventing Noncontact Anterior Cruciate Ligament Injuries: A Review of the Hunt Valley II Meeting, January 2005. American Journal of Sports Medicine. 2006 34:9. 1512-1532.

Arendt EA, Agel J, Dick R. Anterior cruciate ligament injury patterns among collegiate men and women., Journal of Athletic Training, 1999; 34(2):86-92.

Spindler et al., Return to High School and College-Level Football After Anterior Cruciate Ligament Reconstruction., Am J Sports Med. Published online Aug. 24, 2012.