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 e’ve
all watched the biggies go down on the football field or the basketball
court with knee injuries of catastrophic proportions. The result is often
prolonged disability. Surgical intervention ranging from arthroscopic microsurgery
to ligament reconstruction is often necessary. This can add up to a tremendous
loss for both the athlete and his/her team. Often, it’s the difference between
a championship and finishing out of the money. Too frequently it signals
the end or at least the abbreviation of a promising career.
Tough nuggies! What really matters to YOU is the pain in the front of
YOUR knee when you hit the step machine or the treadmill or the stiffness
you feel after sitting in a movie for a couple of hours. That is getting
in the way of your fitness training, your running, and your squash or
volleyball game. This is really serious.
What’s it all about? The kneecap (patella) under normal conditions glides
smoothly and symmetrically in a shallow groove (the trochlea) in the front
of the thigh bone (femur) as you bend and straighten your knee. That glide
may become irregular, or the patella tilted in the trochlea. Tight muscles
in the front of the thigh (quadriceps) may increase the pressure of the
patella on the trochlea, eventually eroding the shiny, smooth cartilage
of the trochlea and the undersurface of the patella. As an end result,
he cartilage becomes roughened, thinned and inflamed … chondromalacia.
Eventually, arthritis ensues.
The major factors contributing to patello-femoral malalignment
and thus pain, more than one of which is frequently operative in the same
individual, are:
- Imbalance between the quadriceps
muscles on the inner and outer aspect of the thigh. The quadriceps pulls
the patella up as the knee is straightened, and frequently the outer
thigh muscles are the stronger and tend to pull the patella laterally.
This may be enhanced by tightness of the iliotibial band running from
the buttock to the outside of the knee. This imbalance is addressed
by stretching the iliotibial band, strengthening the medial quadriceps
and taping or bracing the patella to reduce its lateral deviation.
- Excessively pronated (rolled
in) feet may twist the femur medially, relatively laterally displacing
the patella and twisting the tendons above and below it. This may contribute
to patellofemoral pain and also to tendinitis involving the tendons
above or below the patella. Special
shoes or orthoses may correct excessive pronation.
- Anterior knee pain may be caused
simply by tightness of the quadriceps muscle, compressing the patella
against the trochlea. Stretching the quads usually manages this problem
- If the patella is too small,
or rides too high on the femur (patella alta), or the trochlea too shallow,
the tendency of the patella to deviate from its course is increased.
Taping or the use of a patella restraining brace, along with the appropriate
strengthening exercises usually work.
- Excessively flared out hips,
particularly in the presence of obesity may increase the lateral pull
on the patella. Weight reduction, strengthening the medial and stretching
the lateral quadriceps may afford some relief.
- A small band of tissue, the
medial synovial plica, on the inner aspect of the knee may become thickened
and inflamed in the presence of abnormal patellar excursion. Correction
of foot and knee biomechanics, anti-inflammatory therapy with medication,
ice, and physical therapy will address this problem. Surgical intervention,
usually arthroscopic, is sometimes needed.
The bottom line in this and other sports medicine problems is accurate
and timely diagnosis followed by prompt, appropriate management. The sooner
it’s addressed, the more effectively it gets handled. And that’s what
we do at Catskill Rehabilitation & Sports Medicine. Try us!
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