Component of evaluationEvaluation areaDiagnoses to consider
InspectionCarrying angle in full extension (men: 5 degrees, women: 15 degrees); compare with contralateral sideDecreased angle suggests supracondylar fracture; increased angle suggests lateral epicondylar fracture; consider possible ulnar nerve injury
Diffuse elbow joint swelling; joint held in flexionInterarticular joint pathology
Swelling over olecranonOlecranon bursitis
PalpationBiceps muscle and tendon tenderness or deformityRuptured distal biceps muscle or tendon
Cubital fossa tenderness or swellingJoint capsule strain or hyperextension injury; look for median and musculocutaneous nerve injury
Epicondyles or distal humerusFracture
Radial headFracture or dislocation; consider radial nerve injury
Ulnar nerve in sulcus: tender or thickened area over nerveUlnar nerve injury or entrapment
Wrist extensor tendernessRadial tunnel syndrome or lateral epicondylitis (tennis elbow)
Wrist flexor or pronator muscle group tendernessPronator syndrome or golfer's elbow
Range of motion*Flexion 135 degrees; extension 0 to 5 degrees; supination 90 degrees; pronation 90 degreesIf active range of motion is normal, no need to test passive range of motion; if active range of motion is abnormal and passive range of motion is normal, consider muscle or nerve injury; abnormal passive range of motion indicates joint pathology
Muscle strengthExtensionTriceps muscle, radial nerve
FlexionBrachioradialis muscle, musculocutaneous nerve
PronationPronators, acute nerve irritation of branch median nerve
SupinationBiceps muscle, musculocutaneous nerve
Sensory/neurologicBiceps DTRMusculocutaneous nerve C5
Brachioradialis DTRRadial nerve C6
Triceps DTRRadial nerve C7