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Chapter 14 – The Elbow and Forearm Pages 507 - 511.

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Presentation on theme: "Chapter 14 – The Elbow and Forearm Pages 507 - 511."— Presentation transcript:

1 Chapter 14 – The Elbow and Forearm Pages

2 Ligamentous Testing  Single-plane instability tested in frontal plane with elbow not fully extended  Full extension – olecranon is securely locked within fossa

3 Test for Medial Ligament Laxity  Anterior oblique portion of UCL Primary restraint of medial elbow against valgus stress Trauma = laxity throughout ROM Injury to other ligaments unlikely without first damaging this structure  Valgus Stress Test – Box 14-3, page 508

4 Test for Lateral Ligament Laxity  Radial collateral ligament Primary restraint against varus stress  Other involved ligaments that allow radius to separate from ulna Annular L. Accessory lateral collateral L. (ALCL) Lateral ulnar collateral L. (LUCL)  Varus Stress Test, Box 14-4, page 509

5 Neurologic Testing  Nerve impingement occurring in shoulder or cervical region can result in disruption of motor and/or sensory function in elbow, forearm, hand  Nerve trauma at elbow refers symptoms to wrist, hand, fingers  Figure 14-18, page 507  Upper quarter screen, Box 1-6, page 17

6 Elbow Sprains  Valgus or varus stress Blow or forceful motion to flexed elbow  Rotational component  Hyperextension mechanism May stress anterior capsule or compress posterior structures

7 Ulnar Collateral Ligament  Valgus loading Overhead pitching motion  Assistance from triceps, wrist flexor-pronator muscles, anconeus  LUCL may also be injured if force if sufficient  Evaluative Findings Table 14-3, page 510

8 Ulnar Collateral Ligament  Posterolateral Rotational instability Tears of LUCL permit rotatory subluxation of humeroulnar joint and subluxation of radiohumeral joint Posterolateral Rotatory Instability Test  Box 14-5, page 510

9 Ulnar Collateral Ligament  Treatment Alleviate repetitive forces Reduce pain and inflammation ROM Strengthening  Assess ROM at shoulder Excessive external rotation  Cocking and acceleration phases

10 Radial Collateral Ligament  Rare due to protection from body  Varus forces Trauma to RCL, and possibly annular L. May also disrupt articulation between radial head and capitellum  S & S similar to UCL sprain Pain, laxity, weakness-pronation/supination  Treatment also similar to UCL sprain

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