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Ch. 18 Knee Injuries. Knee. Genu Valgum (knocked knee) Genu Varum (Bow legged) Genu Recurvatum (hyperextension). Patellofemoral Pain. Difficult injury to deal with because the MOI may be hard to isolate MOI: prolonged knee flexion, stairs, squats, running
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Knee • Genu Valgum(knocked knee) • Genu Varum (Bow legged) • Genu Recurvatum (hyperextension)
Patellofemoral Pain • Difficult injury to deal with because the MOI may be hard to isolate • MOI: prolonged knee flexion, stairs, squats, running • S/S: pain in the front of the knee or behind the kneecap, knee giving way, crepitus, mild swelling
Patellofemoral Pain • Treatment: correct biomechanics that is causing misalignment, strengthen quads, patella tape, orthotics, braces
Patella Tendonitis • Jumper’s Knee • MOI: sprinting, jumping, quick change in directions, repetitive • S/S: anterior knee pain below patella • Treatment: modify activity, ice, patella strap
Patella Dislocation • MOI: knee bent and forced inward • S/S: obvious deformity, pain, immediate swelling • Treatment: reduce, immobilize, check ligaments, RICE • Rehab: strengthening, ROM
Osgood-Schlatter • Involves tibial tubercle epiphysis • Males 12-16, Females 10-14 • MOI: traction of quads • S/S: pain, swelling, weakness in quads, lump, pain with palpation
Osgood-Schlatter • Treatment: control pain, swelling, and flexibility • Wear protective pad or knee sleeve • Ice after all activity • Take NSAIDs • Stretch hamstrings
IT Band Syndrome • Iliotibial Band: thick fibrous tissue on lateral side of thigh • ITB Syndrome is irritation of the ITB when it crosses muscles and bone at lateral epicondyle
IT Band Syndrome • Caused by increased mileage, foot and knee misalignment, leg length discrepancies • Treatment: RICE, stretch, correct biomechanical problems
MCL • MOI: blow to outside of knee resulting in valgus force • S/S: pain on medial joint line or at attachments of MCL, decreased ROM, swelling • Treatment: RICE, crutches • Rehab: ROM, strengthening
ACL • Females who participate in basketball and soccer are four to six times more likely to tear ACL than males who play the same sport • 70% of ACL injuries in females are noncontact • Influencing factors • Biomechanical: quadriceps, landing • Hormones • Environmental: playing surface, shoe type • Anatomic: femoral notch, Q-angle
ACL • MOI: noncontact or contact, rapid change of direction • No degrees—either torn or not • S/S: ‘pop’, swelling, ‘loose’ knee, pain • Special Test: Anterior Drawer, Lachman’s, should be performed before guarding sets in • Diagnosed with MRI • Treatment: RICE, crutches, knee immobilizer, surgery
PCL • Most common MOI is car accident-knee hitting the dashboard • Use ‘sag’ test to diagnosis • Usually non-surgical • Rehab to restore strength and ROM
Meniscus • Medial meniscus is attached more securely on the back and medial side of the knee. It does not more around easily which is why its torn more often • MOI: sudden knee twisting • S/S: clicking, pain with flexion • As one ages, meniscus lose rubbery consistency and tear more easily
Special Tests • Apprehension: Patella dislocation • Valgus Stress Test: MCL • Varus Stress Test: LCL • Lachmen’s and Anterior Drawer: ACL • Posterior Drawer: PCL • McMurray’s: Meniscus
Rehab • ROM: heel prop, heel slides • Strengthening: Straight leg raises, total knee extensions, step ups • Balance: on foam pad, rebounder • Functional: speed ladder, carioca, cutting