Chapter 15- The Ankle and Lower Leg.ppt

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1、Chapter 15: The Ankle and Lower Leg,Figure 15-1,Preventing Injury in the Lower Leg and Ankle,Achilles Tendon Stretching A tight heel cord may limit dorsiflexion and may predispose athlete to ankle injury Should routinely stretch before and after practice Stretching should be performed with knee exte

2、nded and flexed 15-30 degreesStrength Training Static and dynamic joint stability is important in preventing injury Develop a balance in strength throughout the range,Figure 15-4,Neuromuscular Control Training Can be enhanced by training in controlled activities on uneven surfaces or a balance board

3、,Figure 15-5 & 6,Footwear Can be an important factor in reducing injury Shoes should not be used in activities they were not made forPreventive Taping and Orthoses Tape can provide some prophylactic protection However, improperly applied tape can disrupt normal biomechanical function and cause injur

4、y Lace-up braces have even been found to be effective in controlling ankle motion,Assessing the Lower Leg and Ankle,History Past history Mechanism of injury When does it hurt? Type of, quality of, duration of pain? Sounds or feelings? How long were you disabled? Swelling? Previous treatments?,Observ

5、ations Postural deviations? Genu valgum or varum? Is there difficulty with walking? Deformities, asymmetries or swelling? Color and texture of skin, heat, redness? Patient in obvious pain? Is range of motion normal? Palpation Begin with bony landmarks and progress to soft tissue Attempt to locate ar

6、eas of deformity, swelling and localized tenderness,Special Test - Lower Leg Percussion/bump and Compression tests Used when fracture is suspected Percussion test is a blow to the tibia, fibula or heel to create vibratory force that resonates w/in fracture causing pain Compression test involves comp

7、ression of tibia and fibula either above or below site of concern,Ankle Stability Tests Anterior drawer test Used to determine damage to anterior talofibular ligament primarily and other lateral ligament secondarily A positive test occurs when foot slides forward and/or makes a clunking sound as it

8、reaches the end point Talar tilt test Performed to determine extent of inversion or eversion injuries With foot at 90 degrees calcaneus is inverted and excessive motion indicates injury to calcaneofibular ligament and possibly the anterior and posterior talofibular ligaments If the calcaneus is ever

9、ted, the deltoid ligament is tested,Anterior Drawer Test,Talar Tilt Test,Bump Test,Functional Tests While weight bearing the following should be performed Walk on toes (plantar flexion) Walk on heels (dorsiflexion) Hops on injured ankle Start and stop running Change direction rapidly Run figure eigh

10、ts,Recognition and Management of Injuries to the Ankle,Ankle Injuries: Sprains Single most common injury in athletics caused by sudden inversion or eversion momentsInversion Sprains Most common and result in injury to the lateral ligaments Anterior talofibular ligament is injured with inversion, pla

11、ntar flexion and internal rotation Occasionally the force is great enough for an avulsion fracture to occur w/ the lateral malleolus,Severity of sprains is graded (1-3) With inversion sprains the foot is forcefully inverted or occurs when the foot comes into contact w/ uneven surfaces,Eversion Ankle

12、 Sprains -(Represent 5-10% of all ankle sprains),Etiology Bony protection and ligament strength decreases likelihood of injury Eversion force resulting in damage to deltoid and possibly fx of the fibula Deltoid can also be impinged and contused with inversion sprains,Syndesmotic Sprain Etiology Inju

13、ry to the distal tibiofemoral joint (anterior/posterior tibiofibular ligament) Torn w/ increased external rotation or dorsiflexion Injured in conjunction w/ medial and lateral ligaments May require extensive period of time in order to return to play,Figure 15-13,Graded Ankle Sprains Signs of Injury

14、Grade 1 Mild pain and disability; weight bearing is minimally impaired; point tenderness over ligaments and no laxity Grade 2 Feel or hear pop or snap; moderate pain w/ difficulty bearing weight; tenderness and edema Positive talar tilt and anterior drawer tests Possible tearing of the anterior talo

15、fibular and calcaneofibular ligaments Grade 3 Severe pain, swelling, hemarthrosis, discoloration Unable to bear weight Positive talar tilt and anterior drawer Instability due to complete ligamentous rupture,Care Must manage pain and swelling Apply horseshoe-shaped foam pad for focal compression Appl

16、y wet compression wrap to facilitate passage of cold from ice packs surrounding ankle Apply ice for 20 minutes and repeat every hour for 24 hours Continue to apply ice over the course of the next 3 days Keep foot elevated as much as possible Avoid weight bearing for at least 24 hours Begin weight be

17、aring as soon as tolerated Return to participation should be gradual and dictated by healing process,Ankle Fractures/Dislocations Cause of Injury Number of mechanisms often similar to those seen in ankle sprains Signs of Injury Swelling and pain may be extreme with possible deformity Care Splint and

18、 refer to physician for X-ray and examination RICE to control hemorrhaging and swelling Once swelling is reduced, a walking cast or brace may be applied, w/ immobilization lasting 6-8 weeks Rehabilitation is similar to that of ankle sprains once range of motion is normal,Tendinitis Cause of Injury S

19、ingular cause or collection of mechanisms Footwear, mechanics, trauma, overuse, limited flexibility Signs of Injury Pain & inflammation Crepitus Pain with AROM & PROM Care Rest, NSAIDs, modalities Orthotics for foot mechanic,Tibial and Fibular Fractures Cause of Injury Result of direct blow or indir

20、ect trauma Fibular fractures seen with tibial fractures or as the result of direct trauma Signs of Injury Pain, swelling, soft tissue insult Leg will appear hard and swollen (Volkmans contracture) Deformity may be open or closed Care Immediate treatment should include splinting to immobilize and ice

21、, followed by medical referral Restricted weight bearing for weeks/months depending on severity,Stress Fracture of Tibia or Fibula Cause of Injury Common overuse condition, particularly in those with structural and biomechanical insufficiencies Result of repetitive loading during training and condit

22、ioning Signs of Injury Pain with activity Pain more intense after exercise than before Point tenderness; difficult to discern bone and soft tissue pain Bone scan results (stress fracture vs. periostitis),Care Eliminate offending activity Discontinue stress inducing activity 14 days Use crutch for wa

23、lking Weight bearing may return when pain subsides After pain free for 2 weeks athlete can gradually return to activity Biomechanics must be addressed,Medial Tibial Stress Syndrome (Shin Splints) Cause of Injury Pain in anterior portion of shin Stress fractures, muscle strains, chronic anterior comp

24、artment syndrome, periosteum irritation Caused by repetitive microtrauma Weak muscles, improper footwear, training errors, varus foot, tight heel cord, hypermobile or pronated feet and even forefoot supination can contribute to MTSS May also involve, stress fractures or exertional compartment syndro

25、me,Shin Splints (continued) Signs of Injury Diffuse pain about distomedial aspect of lower leg As condition worsens ambulation may be painful, morning pain and stiffness may also increase Can progress to stress fracture if not treated Care Physician referral for X-rays and bone scan Activity modific

26、ation Correction of abnormal biomechanics Ice massage to reduce pain and inflammation Flexibility program for gastroc-soleus complex Arch taping and orthotics,Shin Contusion Cause of Injury Direct blow to lower leg (impacting periosteum anteriorly) Signs of Injury Intense pain, rapidly forming hemat

27、oma w/ jelly like consistency Increased warmth Care RICE, NSAIDs and analgesics as needed Maintaining compression for hematoma (which may need to aspirated) Fit with doughnut pad and orthoplast shell for protection,Compartment Syndrome Cause of Injury Rare acute traumatic syndrome due to direct blow

28、 or excessive exercise May be classified as acute, acute exertional or chronic Signs of Injury Excessive swelling compresses muscles, blood supply and nerves Deep aching pain and tightness is experienced Weakness with foot and toe extension and occasionally numbness in dorsal region of foot,Figure 1

29、5-20,Care If severe acute or chronic case, may present as medical emergency that requires surgery to reduce pressure or release fascia RICE, NSAIDs and analgesics as needed Avoid use of compression wrap = increased pressure Surgical release is generally used in recurrent conditions May require 2-4 m

30、onth recovery (post surgery) Conservative management requires activity modification, icing and stretching Surgery is required if conservative management fails,Achilles Tendonitis Cause of Injury Inflammatory condition involving tendon, sheath or paratenon Tendon is overloaded due to extensive stress

31、 Presents with gradual onset and worsens with continued use Decreased flexibility exacerbates condition Signs of Injury Generalized pain and stiffness, localized proximal to calcaneal insertion, warmth and painful with palpation, as well as thickened May progress to morning stiffness,Care Resistant

32、to quick resolution due to slow healing nature of tendon Must reduce stress on tendon, address structural faults (orthotics, mechanics, flexibility) Aggressive stretching and use of heel lift may be beneficial Use of anti-inflammatory medications is suggested,Achilles Tendon Rupture Cause Occurs w/

33、sudden stop and go; forceful plantar flexion w/ knee moving into full extension Commonly seen in athletes 30 years old Generally has history of chronic inflammation Signs of Injury Sudden snap (kick in the leg) w/ immediate pain which rapidly subsides Point tenderness, swelling, discoloration; decre

34、ased ROM Obvious indentation and positive Thompson test,Figure 15-20,Care Usual management involves surgical repair for serious injuries Non-operative treatment consists of RICE, NSAIDs, analgesics, and a non-weight bearing cast for 6 weeks to allow for proper tendon healing Must work to regain normal range of motion followed by gradual and progressive strengthening program,