November 2018 127
TOP THREAT:
SCAPHOID FRACTURE^
What it is:
A break in the scaphoid
bone, one of eight small
carpal bones in the wrist.
(Stick out your thumb
hitchhiker style: the
scaphoid is under that little
divot at the base of your
thumb.) Scaphoid breaks
account for about 70 per
cent of carpal fractures.
Cause:
Usually falling palm down on
an outstretched hand – an
injury that often occurs in
young men.
Treatment:
A cast or splint that
immobilises the thumb for
about six weeks can treat
most fractures, especially
close to the thumb, where
there’s good blood
circulation. If bones are
displaced, aren’t healing, or
show signs of decay due to
poor blood supply, you may
need surgery to align them
and hold them in place with
screws, pins or wires. After
undergoing surgery on both
wrists, US Open tennis
champion Juan Martin del
Potro has fought his way
back into the world Top 5.
Defence:
If you don’t want to quit the
sports most likely to break
wrists – football, soccer,
skiing, snowboarding – wear
wrist guards and/or learn
to tuck and roll.
Future-Proof Your Wrist s:
A triangular fibrocartilage
complex (TFCC) tear entails
damage to the cartilage on
the pinkie-finger side of the
wrist that supports and
cushions the carpal bones.
•ELLIPSOID
In a modified
ball-and-socket,
the rounded end
of one bone (or
multiple bones)
moves against
a shallow,
elliptical cavity
in another,
allowing a wide
range of movement.
WRIST
TYPE OF JOINT:
Ellipsoid
The wrist’s collection of bones, ligaments,
tendons and cartilage forms the body’s
most complex joint. Because it’s not weight-
bearing, it’ll likely provide problem-free
mobility for a lifetime – unless you injure it.
BROOKS KOEPKA HAD BEEN SIDELINED
BY A TORN TENDON IN HIS LEFT WRIST
BEFORE IGNITING TO WIN TWO MAJOR
CHAMPIONSHIPS THIS YEAR.
TFCC tears cause pain near
the pinkie, especially when
bending the wrist from side
to side. As with a scaphoid
fracture, it can stem from
falling on an outstretched
hand (or violently twisting
the wrist). Another cause:
the sudden binding of a
power-drill bit that spins
the drill while it’s in your
grip. Protect yourself by
upgrading to a drill with
a torque grip that lets you
grab two handles for
improved control.
Watch Out!
If an X-ray doesn’t show a
scaphoid fracture
immediately, wait. Small
breaks often don’t appear
until 10-14 days after injury,
when poor blood supply
causes bone decay that’s
more visible on a scan.
Wrist still hurting after two
weeks? X-ray it again.
DIY R EPAIR
THE BEST JOINT REPAIRS ARE THE BODY’S OWN. “TISSUES NATURALLY REPLICATE AND, THROUGH
HEALING, GET BETTER OVER TIME,” SAYS DR DARRYL D’LIMA. THAT’S WHY RESEARCHERS ARE
STUDYING WAYS TO BOOST THE BODY’S SELF-REPAIR WITH TECHNIQUES LIKE THESE:
1
PLATELET-RICH
PLASMA
Platelets in blood plasma contain
proteins called growth factors that
promote healing. In PRP therapy,
your doc draws your blood, spins
it to separate and concentrate the
platelets, and injects the
preparation into a joint. Studies
suggest it’s most effective for
chronic tendon injuries, especially
tennis elbow, but research hasn’t
conclusively shown it’s better than
existing treatments.
2
STEM
CELLS
Stem cells harvested from bone
marrow (new research is looking
into extracting them from fat)
have the potential to grow into
other types of cells. Once
programmed in the lab, they’re
put into a joint to grow new
tissues like cartilage and ligament.
The therapy has shown promise in
animal studies, and some clinics
offer it for osteoarthritis. “But the
jury is still out,” says D’Lima.
3
CARTILAGE
IMPLANTS
US authorities recently approved
a procedure called autologous
chondrocyte implantation (ACI)
that helps heal damaged cartilage
in people without osteoarthritis. A
surgeon first extracts one or two
small samples of cartilage from
your knee in the non-weight-
bearing zones. These are
processed in a lab, and the cells
are placed back into the knee
during a second operation.
ENHANCED
ACL REPAIR
In a new technique, a scaffold
loaded with a patient’s blood is
placed between the ends of a torn
ACL before they’re sutured. Called
bridge-enhanced ACL repair, or
BEAR, it stimulates healing in the
ligament and doesn’t require a
graft from elsewhere in the body.
“Good preliminary results,” says
Dr Brian Sennett.
ROCK THE JOINT