Title:
1 Sports Medicine for Primary Care
Physicians
- Dr. Donald W. Kucharzyk
- The Orthopaedic, Pediatric Spine
- Institute
- Crown Point, Indiana
2Sports Medicine for Primary Care Physicians
- Pediatric Athletic Sports Related Injuries
- Female Athletic Sports Injuries
- Preventing Sports Injuries in Female Athletes
- COX-2 Specific Inhibitors Emerging Role in
Sports Medicine
3Sports Medicine for Primary Care Physicians
- Musculoskeletal Overuse
- Syndromes
4Sports Medicine for Primary Care Physicians
- Increased Musculoskeletal stress is common in our
young athletes recently - Reflects the escalating intensity of training and
competition at younger ages - Athletes go from one sport to the next with
prolonged seasons and little rest - Excessive use produces unresolved stresses on
normal tissues that has yet to adapt and leads to
failure and overuse
5Sports Medicine for Primary Care Physicians
- Overuse injuries occur at two particular times
during training - First occurs when underused athletes who are
partially conditioned are placed in demand
situations pre-season football and cross country - Second occurs in the extremely fit athlete who
are participating in multiple sports resulting in
depletion of tissue reserves
6Sports Medicine for Primary Care Physicians
- History is the best primary aid to the diagnosis
of overuse injuries - Mechanical Pain that is produced by activity and
relieved by rest is the hallmark anatomic factor - Environmental factors such as playing surfaces
and equipment play a role - The most significant factor though is the
training programs sudden increases or changes
7Sports Medicine for Primary Care Physicians
- Overuse treatment protocol involves five phases
- Identify risk factors
- Modify offending factors
- Institute pain control
- Undertake progressive rehabilitation
- Continue maintenance to prevent re-injury
8Sports Medicine for Primary Care Physicians
- Stress Fractures
- Stanitski proposed the etiology to be the result
of highly concentrated eccentric and concentric
muscle forces acting across specific bones and
compounded by specific sports specific demands
predispose the bone to failure - Loss of normal time frame for bone repair
submaximal trauma produces the fracture
9Sports Medicine for Primary Care Physicians
- Muscle fatigue also plays a role in stress
fractures - With fatigue of the muscle envelope, greater
stress is absorbed by the underlying bone and
predispose to stress fractures - Increased muscle force--change in remodeling
rate--resorption and rarefaction--microfractures--
stress fx
10Sports Medicine for Primary Care Physicians
- Standard radiographs are not helpful because
early phase stress fractures are radiographically
silent - Bone Scans are extremely helpful but may not be
positive till 12-15 days post injury - Locations involve primarily the tibia but also
has been seen in the upper extremity such as the
humerus and radius and proximal femoral neck
11Sports Medicine for Primary Care Physicians
- Treatment regime involves immobilization via a
pneumatic leg brace this helps distribute the
stress across the soft tissue envelope that will
diminish stress across the fracture and allow
healing to progress - Post healing rehabilitation is critical as well
as evaluating the mechanics of the injury and
training/conditioning and gait too.
12Sports Medicine for Primary Care Physicians
- Stress Injuries of the Growth Plate
- Must be aware that chronic stress injuries can
cause physeal damage - Runners show this manifestation in the distal
femur and proximal tibia--attention to history,
clinical exam, and xray evaluation
important..confused with neoplasm - Areas Affected Include Proximal Humerus
commonly seen in Pitchers
13Sports Medicine for Primary Care Physicians
- Gymnasts have the most common physeal stress
fracture seen affecting the distal radius--will
retard growth and produce an overgrowth of the
ulna and wrist pain - Treatment is rest, immobilization, avoidance,
rehabilitation, and conditioning - Treatment course involves at least 3 months of
avoidance and then rehabilitation
14Sports Medicine for Primary Care Physicians
- Little League Shoulder
- Microtrauma and overuse to the upper extremity
localized to the proximal humerus - Mechanics of pitching produces stress across the
physis during the cocking phase, acceleration
phase, and the follow-through-greatest stress on
physis at this time - Radiographs reveal widening of the proximal
humeral physis
15Sports Medicine for Primary Care Physicians
- Treatment is rest from throwing for the remainder
of the season plus a vigorous preseason
conditioning program the following year - Recommendation to the family involves the
evaluation of the athletes throwing mechanics, in
immature pitchers development of skill and
control, then with maturity develop speed and
velocity
16Sports Medicine for Primary Care Physicians
- Little League Elbow
- Medial elbow pain in tennis players, javelin
throwers, and football quarterbacks - Complex grouping of injuries involving medial
epicondylar fractures, medial apophysitis, and
ligamentous injuries - Pain is the most common complaint
- Duration of pain aides in the diagnosis
17Sports Medicine for Primary Care Physicians
- Short duration must consider avulsion fx
- Longer duration consider ligamentous injury or
medial apophysitis - Radiographs lead to the diagnosis in fractures,
but normal variants must be understood especially
medially - MRI gaining importance in use in these injuries
as it gives great details of all the structures
18Sports Medicine for Primary Care Physicians
- Treatment is diagnosis specific
- Medial Apophysitis-medial pain,diminished
throwing effectiveness, and decreased distance
rest (4-6 weeks), NSAID, ice, gradual return to
conditioning and resume throwing at about 8 weeks - Medial Epicondylar Fractures-nondisplaced
treat with cast and rehab displaced 3mm or more
treat with ORIF -
19Sports Medicine for Primary Care Physicians
- Medial Ligament Rupture-sudden onset of severe
pain with instability treatment is via direct
surgical repair and if tenuous then supplement
with a palmaris longus graft
20Sports Medicine for Primary Care Physicians
- Panners Disease
- Osteochondrosis of the capitellum (necrosis or
fragmentation followed by recalcification) - Seen in children aged 7 to 12 years of age
- Dull,ache that is aggravated by activity
especially throwing - Pain always LATERAL
- Radiographs reveal fragmentation and
irregularities of the capitellum
21Sports Medicine for Primary Care Physicians
- Treatment involves initially rest, avoidance of
throwing, and splinting until pain and tenderness
subsides - Rehabilitation and reconditioning of the upper
extremity post recover important - Late deformity and collapse of the articular
surface of the capitellun uncommon
22Sports Medicine for Primary Care Physicians
- Iliac Apophysitis
- Iliac crest tenderness on palpation and muscular
contraction seen primarily in adolescent long
distant runners - No local trauma but history of extensive
intensive training programs - Radiographs are normal
- Treatment is rest (4-6weeks), ice, NSAID,
progressive return to sports
23Sports Medicine for Primary Care Physicians
- Osgood-Schlatter Disease
- Classic presentation is seen in preteen or early
teenage children with activity related
discomfort, swelling, and tibial tubercle
tenderness - Bilateral occurrence in 20 to 30
- Etiology is submaximal repetitive tensile
stresses acting on an immature patellar
tendon-tibial tubercle junction
24Sports Medicine for Primary Care Physicians
- Muscle imbalance is commonly seen with weakness
in the quadriceps sometimes significant - Treatment is avoidance of activity,
rehabilitation of the weak quadriceps, hamstrings
and flexibility training, and progressive return
to sports - Family must understand that it can take from 12
to 18 months for all symptoms to subside
25Sports Medicine for Primary Care Physicians
- Sinding-Larsen-Johansson Disease
- Anterior knee pain at inferior pole of the
patella - Seen commonly in 10 to 12 year olds
- Tenderness seen at the inferior end of the
patella at the tendon-bone junction - Must evaluate for sleeve fracture or patellar
stress fractures if history of sudden onset
26Sports Medicine for Primary Care Physicians
- Treatment involves rest, ice, NSAID, and
occassionally a knee sleeve for protection - Rehabilitation program to promote flexibility,
quadriceps and hamstring conditioning, and return
to normal activities to tolerance
27Sports Medicine for Primary Care Physicians
- Slipped Capital Femoral Epiphysis
- Most common hip disorder seen in adolescent
- Slippage of the proximal femoral epiphysis
- Seen in two body types tall, slender, rapidly
growing or the short, obese child - Bilateral in 50
- Common cause of anterior thigh or knee pain,
athletes with knee pain should have the hip
evaluated too
28Sports Medicine for Primary Care Physicians
- Gait abnormality is the common initial presenting
complaint with a limp seen - External rotational deformity of the hip seen
(obligatory external rotation) - Pain can be seen under 3 weeks (acute) over 3
weeks (chronic) - Treatment is immediate percutaneous hip pinning
29Sports Medicine for Primary Care Physicians
- Patello-Femoral Malalignment
- Common source of sports disability especially in
jumpers and those sports requiring rapid changes
in direction - May be related to congenital, acquired such as in
Downs or Ehlers-Danlos syndrome, or acquired due
to trauma - Can be seen in association with flexible flat
footedness due to valgus thrust on the patella
30Sports Medicine for Primary Care Physicians
- Common symptoms include vague, localized anterior
knee discomfort - Seen following prolonged sitting, stair accent
and descent, and with increase levels of activity - Clinically evaluate for mechanical alignment of
the lower extremity, movement of the patella on
flexion/extension, quadriceps function and size,
hamstring function and overall flexibility
31Sports Medicine for Primary Care Physicians
- Gait analysis for femoral anteversion or tibial
torsion should be studied as well as the
evaluation for flexible flat footedness - Radiographic evaluation involves plain x-rays
with Merchant view to see patellar alignment and
position - Treatment is symptomatic via rest, NSAID,
physical therapy and sometimes bracing
32Sports Medicine for Primary Care Physicians
- Rehabilitation is the key to preventing the
reoccurrence of the condition - Failure to respond with prolonged symptoms and
persistent subluxation with pain may benefit from
arthroscopic lateral retinacular release - Long term sequlae may predispose the patient to
the development of chondromalacia patella
33Sports Medicine for Primary Care Physicians
- Osteochondritis Dissecans
- Lesion of bone and articular cartilage of
uncertain etiology that results in delamination
of subchondral bone with articular cartilage
mantle involvement - Peak appearance is seen in early adolescence with
male predominance 31 - Seen in the knee but can also be seen in the
ankle involving the talus and the patella
34Sports Medicine for Primary Care Physicians
- Clinically presents with vague knee pain that is
aggravated with sports, intermittent swelling
seen, and at times a feeling of the knee locking - Physical exam is nonspecific
- Radiographic evaluation includes x-ray's and if
indicated an MRI - Most importantly, must differentiate acute
lesions from silent chronic lesions
35Sports Medicine for Primary Care Physicians
- Treatment geared to eliminate the pathologic
process and clinical condition via repair or
resection of the lesion - Chronic lesions loose bodies require removal
arthroscopically and debridement of the bed - Acute lesions require drilling of the bed and
fixation arthroscopically to allow the lesion to
heal
36Sports Medicine for Primary Care Physicians
- Patellar osteochondritis is treated similar to
that of femoral osteochondritis with arthroscopic
evaluation and debridement and curettage of the
lesion - Lesion commonly seen in the lower third of the
patella and is due to increased patello-femoral
contact force during flexion in the presence of
weak quadriceps and minor trauma
37Sports Medicine for Primary Care Physicians
- Ligamentous Injuries
- Common in Athletes
- Loaded in tension to provide both static and
dynamic support to the knee - Knee has motion that occurs in three planes and
requires this static and dynamic support - Kinematics of the Knee shows that any one plane
motion is always coupled with a second plane
motion
38Sports Medicine for Primary Care Physicians
- Must Understand the Healing Process of the
different ligaments - Collateral Ligaments have a rich blood supply
from the surrounding tissue and heals well with
conservative care - Cruciate Ligaments have a sparse blood supply
from surrounding tissue and bone attachment and
do not heal well with conservative care
39Sports Medicine for Primary Care Physicians
- Healing process begins with fibrin clot formation
and then a local inflammatory response - First week post local vascular and fibroblast
proliferation - Second week post fibroblasts become organized
into a parallel network - Third week post tensile strength increases
40Sports Medicine for Primary Care Physicians
- Eighth week post normal appearing ligament is
now present - Early range of motion critical to increasing the
strength and energy-absorbing capacity of the
ligament - Immobilization not favorable to healing and
recover of the ligament
41Sports Medicine for Primary Care Physicians
- Medial Collateral Ligament
- Primary restraint to valgus stress
- Commonly injured by a direct blow to the lateral
side of the knee with the foot planted - Clinical signs reveal tenderness at the medial
epicondyle with localized swelling - Pain on valgus stressing or laxity seen define
the grade of injury
42Sports Medicine for Primary Care Physicians
- Lateral Collateral Ligament
- Primary restraint to varus stress
- Commonly injured with direct blow to the medial
side of the knee with the foot planted - Clinical signs reveal tenderness over the lateral
epicondyle with localized swelling - Pain with varus stressing or laxity reveal the
grade of injury
43Sports Medicine for Primary Care Physicians
- Treatment of Collateral Injuries
- Grade I do not require bracing, Grade II and III
require the use of a hinged ROM brace with motion
limited at 10 to 75 deg. initially for the first
three weeks - Early therapy important and include patellar
mobilization, isometric quadriceps and hamstring
exercises with modalities of whirlpool, E-Stim.,
and biofeedback
44Sports Medicine for Primary Care Physicians
- Bracing discontinued for Grade II and III at four
weeks and achieving full ROM is now the goal - Once FULL ROM achieved then begin flexibility and
strengthening program - Program includes leg presses, mini-squats,
resisted knee flexion, proprioceptive training
and swimming leading to a sports- specific
training program (return 2-8 wks)
45Sports Medicine for Primary Care Physicians
- Anterior Cruciate Ligament
- Primary stabilizer to anterior displacement of
the tibia on the femur - Secondary role is in the control of rotation of
the tibia on the femur and to aide in
varus-valgus stability - Common mechanism of injury is a twisting force to
the knee accompanied by a varus, valgus, or
hyperextension stress to the limb
46Sports Medicine for Primary Care Physicians
- Clinically feels a pop in the knee
- Inability to continue to play with a difficult
time putting weight on the limb - Gradual onset of swelling over the next 24 hours
(acute swelling think chondral fx.) - Examination reveals a positive Lachman Test,
positive Drawer sign, and Pivot-Shift sign - Evaluate for other associated injuries
47Sports Medicine for Primary Care Physicians
- Non-Operative Treatment
- Goal is functional stability
- Initially reduce pain and swelling with NSAIDS,
PT, and crutches - Immobilization not necessary
- Intermediate rehabilitation involves ROM, gait
training, strengthening and proprioceptive
training
48Sports Medicine for Primary Care Physicians
- Once effusion down and ROM full, then begin
swimming and bicycling followed by light jogging - Late phase rehab includes functional training
- Return to sports 6 to 12 weeks
- Must attain 90 of the unaffected extremity
strength before return to sports - Bracing is not absolutely indicated (no evidence
to support functional bracing)
49Sports Medicine for Primary Care Physicians
- Anterior Cruciate Ligament
- Isolated disruptions are unusual in children
- Two types exist nontraumatic cruciate
insufficiency and post traumatic cruciate
insufficiency - Nontraumatic Insufficiency have inherent joint
laxity of the knee as well as other joints
50Sports Medicine for Primary Care Physicians
- Positive anterior drawer sign but firm end point
on Lachman test - Findings are seen bilaterally
- Athletic participation should be limited
- Most will be asymptomatic with activity
modification
51Sports Medicine for Primary Care Physicians
- Traumatic Anterior Cruciate Insufficiency
- Can be seen in traumatic avulsions of the tibial
eminence with positive radiographic findings - Laxity is commonly seen with acute hemarthrosis
and often associated with damage to the
supporting ligaments and meniscus - Treatment involves arthroscopic evaluation,
reduction and internal fixation via bioabsorbable
pins and casting
52Sports Medicine for Primary Care Physicians
- Isolated Anterior Cruciate Ligament
- Divided into two groups those without functional
instability and those with - In those without limitations, conditioning and
participation in sports without limitations can
occur - In those with limitations, thorough evaluation
for other associated injuries must be undertaken
MRI and Plain X-ray's
53Sports Medicine for Primary Care Physicians
- Arthroscopic evaluation is carried out to
evaluate the site and magnitude of the ACL tear
and if any peripheral meniscal lesions are seen
then repair carried out - If avulsion from tibia or femur found then
primary repair performed regardless of age - If midsubstance tear with growth left,
conservative treatment undertaken - If no growth left evaluate sport situation
54Sports Medicine for Primary Care Physicians
- Conservative treatment involves rest for 7-10
days, progressive range of motion over next four
weeks, quadriceps and hamstring conditioning
exercises are begun - Maintenance program instituted and a functional
brace provided and wait until skeletally mature
for reconstruction - Skeletally mature and achieved goals of
rehabilitation then return to sports without brace
55Sports Medicine for Primary Care Physicians
- If ACL torn and functionally impaired with little
growth left, then reconstruction performed - Treatment geared to prevent further damage to the
joint, meniscus, and articular cartilage - Surgical techniques multiple and center around
the use of the patellar tendon or
semitendinosus/tendon graft transfer
56Sports Medicine for Primary Care Physicians
- Guidelines for ACL Treatment
- Physiologically young person who remains active
in sports and will not modify activities,
surgical intervention if not skeletally immature
if immature wait till maturity - Surgery for those with associated risk factors
for instability such as collateral ligament tears
or meniscal tears - Older athlete modify activity and conservative
57Sports Medicine for Primary Care Physicians
- Female Sports Related Injuries
- Shoulder Instability
- Preventing Knee Injuries
- Patellofemoral Problems in Women
- Preventing Exercise-Related injuries
58Sports Medicine for Primary Care Physicians
- Shoulder Instability
- Shoulder instability in the female athlete is a
difficult problem to identify - Identifying the type of instability is the
biggest challenge faced - Traumatic versus ligamentous laxity
- Ligamentous Laxity is the more common and seen
with pain as the predominant complaint
59Sports Medicine for Primary Care Physicians
- Sex differences put the female athlete at risk
for shoulder injuries - Women have shorter upper limbs relative to total
body length and thus upper girdle musculature and
limbs work harder in certain sports ie. Swimming - Shorter limb and lever arm tends to promote
capsular laxity compared to men and increases
stresses on the shoulder girdle increases
instability and capsular laxity
60Sports Medicine for Primary Care Physicians
- Identify Instability by the mechanism of injury,
by the degree of instability, direction of
dislocation or subluxation, and type of onset - Types seen Acute Dislocation,Recurrent
Instability,Atraumatic Instability, and
Repetitive Microtrauma - Most Common Type seen in the female athlete is
the nontraumatic microinstability or subluxation
injury due to capsular laxity
61Sports Medicine for Primary Care Physicians
- Acute Dislocation due to trauma with anterior
dislocation seen in 95 of the cases - Dislocations can cause anterior detachment of the
labrum or capsule from the glenoid Bankart
Lesion - Lesion associated with increased ligament laxity,
stretching of the capsule, and loss of
labrum-mediated stabilizing support
62Sports Medicine for Primary Care Physicians
- Recurrent Instability due to repeated
glenohumeral dislocations or subluxation that
stretch the capsule and ligaments, leading to
increased laxity and instability - Resultant Natural History of chronic dislocations
with unhealed Bankart lesions - Secondary Etiology Congenital Inherent Laxity of
the shoulder joint (Genetic)
63Sports Medicine for Primary Care Physicians
- Atraumatic Instability typically a
micro-instability or a subluxation disability - Referred to at times as multi-directional
instability due to the movement of the head
abnormally in multiple planes - Generalized laxity of the capsule and ligaments
seen with associated fraying of the glenoid labrum
64Sports Medicine for Primary Care Physicians
- Repetitive Microtrauma commonly seen in athletes
that participate in excessive overhead motions - Damages the anterior stabilizing structures of
the shoulder joint - If associated with congenital joint laxity, then
pain due to impingement of the rotator cuff is
also seen
65Sports Medicine for Primary Care Physicians
- Clinical History will give clue to cause and the
possible etiology - Physical examination evaluates passive and active
motion, palpable pain location, instability signs
such as inferior instability test,
anterior-posterior instability test, apprehension
test, anterior relocation test(Jobe),and axial
load test - Imaging X-ray's and MRI
66Sports Medicine for Primary Care Physicians
- Treatment
- Acute Dislocation Reduction of the dislocation
followed by immobilization for three to four
weeks and the rehabilitation - Emphasis placed on early and safe ROM for the
first six weeks followed by strengthening of the
dynamic stabilizers of the shoulder and capsule - Return to sports 12-20 weeks
67Sports Medicine for Primary Care Physicians
- Atraumatic Instability cornerstone is
rehabilitation with specific strengthening of the
muscles that protect the shoulder joint from
instability and discomfort - Sports specific rehabilitation is the KEY
- Importantly, restrict those motions that elicit
pain and promote those that do not - Failure requires workup and possible shoulder
stabilization procedure (arthroscopic)
68Sports Medicine for Primary Care Physicians
- Prevention
- Essential Elements to Prevention strengthening
the muscles of the shoulder girdle and structured
pre-sport and sport specific strength training
activities - Avoid weight training with the load above the
shoulder as well as avoiding weight machines due
to design, and evaluate technique of the athlete
69Sports Medicine for Primary Care Physicians
- Preventing Knee Injuries in Female Athletes
- 20,000 injuries occur in female athletes
- Due to marked imbalance in hamstring and
quadriceps muscle strength - Highest incidence of injury in the untrained
athlete - 3.6 times more likely to have an injury than the
trained athlete
70Sports Medicine for Primary Care Physicians
- Strength training programs that include
plyometrics, stretching, and strength training
have decreased the imbalance and reduces injuries - These program should emphasize muscle balancing,
muscle re-education, and sport specific training
programs and in the long run turns out to be a
simple and cost-effective means to reduce injury
71Sports Medicine for Primary Care Physicians
- Patellofemoral Problems in Female Athletes
- Anterior knee pain in our female athletes is a
frustrating problem - Atraumatic knee pain is commonly due to soft
tissue overload and overuse - Occurs when the demand overwhelms the bodys
ability to maintain homeostasis - Factors influence activity changes, training
errors, flexibility deficits, and weakness
72Sports Medicine for Primary Care Physicians
- Clinical History will determine if the patients
problems are related to anterior pain only or
instability - Anterior pain is commonly worse with prolonged
flexion of the knee and sitting in one position,
activity related pain always seen, and symptoms
aggravated by walking up or down stairs
73Sports Medicine for Primary Care Physicians
- Patellofemoral instability is identified by the
feeling of the knee giving way and the knee cap
feeling like its out of place - Associated with activity but moreso full weight
bearing activities that involve twisting motions - Low Energy injuries or the so called trivial
injuries should alert one to the diagnosis of
Patello-femoral instability
74Sports Medicine for Primary Care Physicians
- Clinical examination involves careful evaluation
of the knee mechanics, muscle strength and size,
palpation of the knee cap, and tracking of the
patella - Evaluate alignment of the leg, shape, and size as
well as flexibility of the limb - Evaluate patellofemoral alignment
- Evaluate pain generator coming from the patella
75Sports Medicine for Primary Care Physicians
- Imaging involves x-rays including AP,Lateral and
Obliques with Merchant view to see tracking of
the patella - Treatment is usually non-operative and begins
with activity modification - Dye Envelope of Function is a concept to
achieve a balance between activity/work that a
patient can do without leaving a state of
homeostasis
76Sports Medicine for Primary Care Physicians
- Key Goal to treatment is to achieve a pain free
envelope of function through avoidance of
provocative activities until conditioning
dictates a return - Strengthening should not stress the envelope and
should be initially geared at the submaximal
level until rehab sufficient - Specific exercises should be performed to enhance
the deficient muscle groups
77Sports Medicine for Primary Care Physicians
- Quadriceps and Hamstring Balancing exercises and
conditioning critical as well as VMO exercises - Stretching program is important as flexibility is
key to rehab but moreso to prevention and
re-education of the appropriate muscle groups - Taping beneficial during rehab but not long
termsecondary deterioration of muscles
78Sports Medicine for Primary Care Physicians
- Surgical correction can be effective but after
all conservative measures exhausted - Arthroscopic Lateral Releases work BEST initially
but without proper re-education, will deteriorate
after two-three years - Proximal or Distal Realignment procedures are
then required with proximal muscle re-alignments
better than boney procedures
79Sports Medicine for Primary Care Physicians
- Pearls to Anterior Knee Pain
- Detailed History
- Accurate Physical Examination
- Focused Initial Rehabilitation Program
- Detailed Sports-Specific Conditioning Program
- Understanding of the Long-Term Need to continue
rehabilitation - NO QUICK FIXES
80Sports Medicine for Primary Care Physicians
- Recommendations for Preventing
- Exercise-Related Injuries in Females
- Women are engaging in sports and fitness
activities with increasing numbers - Women participating in sports has grown from
300,000 three decades ago to 2.7 million today - Women represent 33 of college athletes and 37
of US Olympic athletes
81Sports Medicine for Primary Care Physicians
- 37.4 million women now perform aerobic activity
on average twice each week - Unfortunately, research on exercise-related
injuries in women has not kept up and the true
incidence and risk factors are not known - CDC evaluated military personnel for female
related sports injuries
82Sports Medicine for Primary Care Physicians
- Injury rates among military females was 1.7 to
2.2 times higher than males - Female recruits were less fit upon entering the
military service - Low aerobic fitness was found to be the greatest
risk factor affecting female athletes - Increased aerobic fitness programs decreased the
incidence of injuries in recruits when done early
in basic training
83Sports Medicine for Primary Care Physicians
- Studies revealed that age was not a strong risk
factor for injury - Older athletes modify there degree of intensity
of exercise and thus limit their risk of injury - Smoking did influence injury rates with 1.2 times
higher rate of injury in smokers compared to
non-smokers - Reason delayed healing of microtrauma to tissue
84Sports Medicine for Primary Care Physicians
- Body composition also influenced injury rates in
females - Higher Body Mass Index associated with increased
risk due to extra load placed on body - Low Body Mass Index also seen with higher risk
due to lower proportion of muscle relative to
bodys bone structure, thereby putting greater
stress on the bones leading to injury
85Sports Medicine for Primary Care Physicians
- Strategies for Injury Prevention
- Women over 50 should consult their physician
before beginning an exercise program - Frequency, Duration, and Intensity of exercise
should be customized - Watch for early warning signs such as increasing
muscle soreness, bone and joint pain, fatigue,
and decreased performance
86Sports Medicine for Primary Care Physicians
- When warning signs present, reduce frequency,
duration, and intensity of exercise until
symptoms diminish - If injury occurs, then sufficient time should be
allowed for recovery and rehabilitation before
resuming exercise activity - Women who smoke should stop
- Most importantly, set realistic goals
87Sports Medicine for Primary Care Physicians
- COX-2 Specific Inhibitors Improved
- Advantages Over Traditional NSAIDs
88Sports Medicine for Primary Care Physicians
- Role of NSAIDs in treating injuries has been
based on their ability to inhibit inflammation
and depress pain via inhibition of the enzyme
cyclooxygenase - Cyclooxygenase catalyzes the first two steps in
the synthesis of prostaglandins - NSAIDs(COX-1) inhibit prostaglandins but also
affect other important bodily functions ie.
Gastric mucosal protection, platelet aggregation
89Sports Medicine for Primary Care Physicians
- Recent Studies revealed a second gene with
cyclooxygenase activity (COX-2) - This gene primarily involved in the inflammation
and pain cycle whereas the COX-1 is moreso the
housekeeping enzyme - Furthermore, COX-2 is inducible in most cells
that is upgraded in inflamed tissue by cytokines
and endotoxins to produce PG - COX-1 is a constitutive enzyme seen in all cells
including monocytes and platelets
90Sports Medicine for Primary Care Physicians
- This specificity gives the COX-2 inhibitors a
better and more selective effect on the
inflammatory cycle without damaging the
housekeeping effect needed from the COX-1 - Comparative NSAIDs will influence bone and tissue
metabolism through their effect on PG production
and effect all aspects of healing both in
fractures and injured tissue - COX-2 being inducible, will allow the normal
cascade mechanism for healing to continue
91Sports Medicine for Primary Care Physicians
- Comparative NSAIDs will effect bone fracture
healing, bone fusion in spinal fusion surgery, as
well heterotopic ossification through effect on
the COX-1 and overall effect on the constitutive
enzyme needed for housekeeping - Even though COX-2 effect cytokines seen in
inflammatory tissue and also the fracture model,
being inducible, it will block those being
produced and not those in the normal tissue
cascade allowing the cycle to continue
92Sports Medicine for Primary Care Physicians
- Celebrex and Vioxx do not inhibit COX-1 and
thereby do not affect the housekeeping functions
of COX-1 - Celebrex and Vioxx only affect COX-2 and does not
disturb the COX-1 in the GI tract and thus
preserves the effect on the gastric mucosal and
the protective effect of prostaglandins in the GI
tract
93Sports Medicine for Primary Care Physicians
- Benefits therefore of COX-2 show a higher safe GI
profile - Improved effects on pain and inflammation
- No effect on thromboxane synthesis and therefore
no influence on platelet aggregation - No effect on post-operative bleeding
94Sports Medicine for Primary Care Physicians
- For Sports-Related Injuries it offers relief
from pain and inflammation, rapid onset of
action, improved quality of life and better
dosing regimens - COX-2 inhibitors are effective in treating acute
and chronic pain including muscle tenderness,
strains, sprains, and even fractures (potentially
no effect on new bone formation) excellent effect
on pain control
95Sports Medicine for Primary Care Physicians
- Use in recent studies on minimally invasive
orthopaedic procedures reveals positive results
especially in ACL reconstructions - Regime proved effective was Vioxx 50mg given the
morning of surgery and then 50mg daily for 4
days, then decreased to 25mg daily there after
96Sports Medicine for Primary Care Physicians
97Sports Medicine for Primary Care Physicians
-
- Dr. George Alavanja
- Director, Section of Sports Medicine
- The Orthopaedic, Pediatric Spine Institute
- Crown Point, Indiana
98Sports Medicine for Primary Care Physicians
- Role of COX-2 Inhibitors on influencing bone
graft arthrodesis in spinal fusion surgery - Kucharzyk,D and Cook,S. In
Vivo Controlled Animal Study on the Effect of
COX-2 Inhibitors on Lumbar Spinal Fusion Surgery - Tulane University Clinical Research Dept.
- The Orthopaedic, Pediatric Spine Institute