1. A person who has torn
their ACL has
(during initial 12-months
after ACL reconstruction)
50%
60%-80%
of ACL
injuries
occur
in
2x
of ACL injuries are
Risk of ACL injury
to the opposing
(opposite) knee is
that of the
reconstructed
knee (all sports)
27%
Same study showed another
BRACING REDUCES INJURY RATES
AMONG COLLEGE PLAYERS VS. UNBRACED PLAYERS
returned to play
but didn’t perform
at the same level before ACL tear
30%
Recent clinical study showed that
OF HIGH SCHOOL/
COLLEGE FOOTBALL
players didn’t return to play after ACL
reconstruction. Fear of re-injury
was the primary reason
Numerous high-profile athletes
in college and professional football
rely on DonJoy knee bracing to
allow them to compete
23 25
OF
AP
TOP
23 of AP Top 25 college teams trust the DonJoy Defiance knee brace to
protect their players from ligament injuries
Many professional football players
(from all positions) rely on the
DonJoy Defiance knee brace to
rehab or prevent injury.
DonJoy knee bracing is endorsed by the
Professional Football Athletic Trainers Society (PFATS)
1. Paterno MV. Paper #2. Presented AOSSM Annual Meeting; July 11-14, 2013; Chicago.
2. Griffin 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.
3. 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.
4. Wright 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.
5. 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.
6. Beynnon BD, Pope MH, Wertheimer CM, Johnson RJ, Fleming BC, Nichols CE, Howe JG, Journal of Bone & Joint Surgery, Am. 1992; 74:1298-1312.
7. Beynnon 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.
8. Beynnon 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.
9. Birmingham T, Bryant D, Giffin J, Litchfield R, Kramer J, Donner A, Fowler P. A Randomized Controlled Trial Comparing the Effectiveness of Functional Knee Brace and
Neoprene Sleeve Use After Anterior Cruciate. American Journal of Sports Medicine. 2008, 36:4. 648-655 Ligament.Reconstruction
10. Queen R, Butler RJ, Dai B, Garrett WE. Effects of Knee Extension Constraint Bracing on Lower Extremity Motion Patterns in Post-ACL Reconstruction Patients. Interium Report
of 6-12 month data from the ongoing study, 2012.
11. Yu B, Herman D, Preston J, Lu W, Kirkendall DT, Garrett WE. Immediate Effects of a Knee Brace with a Constraint to Knee Extension on Knee Kinematics and Ground Reaction
Forces in a Stop-Jump Task. AJSM. 2004; 32:1136-1143.
12. Albright JP et al. Medial Collateral Ligament Knee Sprains in College Football: Effectiveness of Preventative Braces. American Journal of Sports Medicine. 1994 22:1. 12-18.
13. Sitler M et al. The Efficacy of a Prophylactic Knee Brace to Reduce Knee Injuries in Football. A Prospective , Randomized Study at West Point. American Journal of Sports
Medicine. 1990; 18(3):310-315.
14. Walters DR. Research Tackles Prophylactic Knee bracing. Biomechanics. December 2000; 7:12, 34-37.
PREVENTION
4-Points-of-Leverage
frame design provides
significant strain reduction
on the ACL
Knee Bracing Offers
increased patient confidence after
ACL reconstruction
DonJoy's
FourcePoint Hinge Technology provides:
• improved joint mechanics
• improved symmetry between both knees
• increased flexion angles
(helps keep knees out of the "at risk" position)
Strong lightweight carbon fiber
provides strength and protection.
In a 2 year study (Division 1 program),
days lost to
knee injury
reduced 91%through use of custom
prophylactic knee bracing
greater risk of a
second ACL injury
1
year olds2
3
4
5
5
5
6,7,8
9
12,13
10
10
11
14
FourcePoint
Technology
anterior
thigh
anchor
anterior tibia
strap applies an
active constant load
to prevent anterior
tibial translation
1
lower
thigh strap
pushes
femur
anteriorly
3
posterior
tibia
anchor
2
4
PSYCHOLOGICAL FACTORS
(PRIMARILY FEAR OF RE-INJURY)
INFLUENCE THE ABILITY TO
RETURN TO PLAY.
Resistance engages in last 25° of extension
PROTECTION
DonJoy was founded in 1978 in a Southern California garage by Philadelphia
Eagles Offensive Line Captain Mark Nordquist and local lawyer Ken Reed.
Today, we provide bracing for some of the world’s top professional athletes,
as well as thousands of professional, collegiate and high school football
teams. DonJoy is proud to support and protect athletes of all ages, at every
level, from back-yard games to football’s biggest stage.