Lesson 1Axillary nerve anatomy: root levels, course through quadrangular space, sensory territory over lateral shoulder (regimental badge)Explains where the axillary nerve starts, its path through the quadrangular space, links to surgical neck and deltoid, plus motor branches and feeling area on outer shoulder for pinpointing issues in practice.
C5–C6 roots and posterior cord contributionsBoundaries of the quadrangular space in the axillaRelationship to surgical neck and humeral headMotor branches to deltoid and teres minorLateral shoulder cutaneous field and variantsLesson 2Peripheral nerve testing and focused sensory mapping: how to localize axillary nerve injury using dermatomes and motor testsShows how to find axillary nerve damage with targeted muscle checks and skin sensation maps, using skin zones, nerve areas, and checks against nearby nerves to tell root from end-branch problems.
Dermatomes versus peripheral cutaneous fieldsMotor testing of deltoid and teres minor strengthPinprick and light touch over regimental badgeDifferentiating axillary from C5 radiculopathyComparing axillary with radial and suprascapularLesson 3Gross anatomy of the shoulder girdle: clavicle, scapula, proximal humerus and important articular surfacesGoes over clavicle, scapula, upper humerus structure, stressing joint surfaces, dips, and bone shapes for shoulder and collarbone joints, aiding touch exams, scans, and injury checks.
Clavicle curvatures, ligaments, and muscle attachmentsScapular borders, angles, and fossae orientationGlenoid cavity, labrum attachment, and versionProximal humerus head, tubercles, and surgical neckAcromioclavicular and sternoclavicular joint surfacesLesson 4Imaging selection and interpretation for shoulder trauma: plain radiographs (AP, scapular Y, axillary), when to use CT and MRI based on anatomical questionsDiscusses picking and reading shoulder injury scans, standard X-ray angles, when for CT or MRI, and bone marks showing slips, breaks, and soft damage on each type.
AP, scapular Y, and axillary radiographic viewsRadiographic signs of dislocation and subtle fractureWhen CT is preferred for complex fracture patternsWhen MRI is preferred for cuff and labral injuryRecognizing Hill‑Sachs and Bankart on imagingLesson 5Suprascapular and musculocutaneous nerve relations: brief review of sensory/somatic overlap around shoulderSums up suprascapular and musculocutaneous nerve paths near shoulder, noting muscle branches, feeling overlap, trap spots to separate from lone axillary nerve harm.
Suprascapular nerve course and notch anatomyInnervation of supraspinatus and infraspinatusMusculocutaneous nerve path through coracobrachialisLateral antebrachial cutaneous sensory fieldPatterns distinguishing these from axillary lesionsLesson 6Deltoid, rotator cuff, and axillary muscles: origins, insertions, actions, and relation to abduction/rotationCovers start points, attachments, nerve supply, moves of deltoid and rotator cuff, their part in arm lift, turn, head centering, and weakness signs from damage.
Deltoid heads, attachments, and abduction arcSupraspinatus origin, tendon path, and functionInfraspinatus and teres minor external rotation rolesSubscapularis internal rotation and anterior restraintMuscle injury patterns and clinical strength testingLesson 7Surface landmarks for shoulder exam and procedures: acromion, coracoid, deltoid tuberosity, quadrangular space identificationPoints out main touchable spots for checks and work, like acromion, coracoid, deltoid bump, quad space, guiding shots, fixes, safe tool entry.
Palpating acromion, spine, and acromial angleLocating the coracoid and coracoacromial archIdentifying deltoid tuberosity and humeral shaftTriangulating the quadrangular space on surfaceLandmarks for glenohumeral joint injectionLesson 8Common shoulder dislocations and fractures: anterior vs posterior dislocation signs, latissimus of flattening, Hill-Sachs and Bankart lesions anatomyLooks at causes and scan signs of front/back slips, linked breaks, key marks like Hill-Sachs, Bankart, tying bone/soft harm to wobble and nerve/vessel risks.
Mechanisms of anterior versus posterior dislocationClinical signs and contour changes of dislocated shoulderHill‑Sachs lesion location and biomechanical impactBankart lesion anatomy and labral detachmentFractures of surgical neck, tuberosities, and glenoidNeurovascular complications in shoulder dislocationLesson 9Glenohumeral joint biomechanics: stability mechanisms, capsulolabral complex, rotator cuff functionBreaks down steady and moving holders of shoulder joint, like sack, rim, bands, cuff, how they team for motion without slip or repeat issues.
Glenoid version, depth, and concavity compressionCapsular ligaments and end‑range restraintRotator cuff force couples in elevationScapulohumeral rhythm and scapular stabilizersMechanisms of atraumatic and traumatic instabilityLesson 10Procedure landmarks and technique: reduction of anterior shoulder dislocation—stepwise maneuvers and anatomical rationale (traction-countertraction, scapular manipulation)Steps for fixing front shoulder slip, pull-counterpull, blade move, with body reasons, break warnings, ways to guard axillary nerve.
Pre‑reduction assessment and neurovascular checkPrinciples of muscle relaxation and analgesiaTraction‑countertraction setup and executionScapular manipulation technique and landmarksPost‑reduction imaging and stability assessment
