Shoulder, elbow Flashcards

1
Q

Causes of adhesive capsulitis

A

pri: idiopathic (frozen shoulder)
- a/w T1DM, dupuytren contracture, HLD, hyperthyroid, cardiac dz
- global contracture
secondary
- intrinsic: chronic rotator cuff injuries, post traumatic
- extrinsic: painful disorders reuslting in decreased movement (cervical radiculopathy)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Stages of frozen shoulder

A

Stage1: 0-6m freezing: pain w movement, worse at night (sx release CI in this stage, will get recurrence from ongoing inflammation)

Stage2: 6-12m Frozen: pain less, stiffness ++, ROM dec
(sx release indicated) - no MUA - cause # or labral/ cuff tears

Stage3: 12-18m resolution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Mgx of frozen shoulder

A

IX: X ray TRO #, ultrasound, BMD for osteoporosis

Conservatives: relieve pain, prevent further stiffening

  • analgesia (NSAIDS)
  • corticosteroids injection
  • heat therapy
  • exercise
  • physioT: repeated circular mvt, assisted abduction, assisted int rotation, wall crawling

Sx: (if no resolution >12m)
1. manipulation under anaesthesia (gold standard): passive stretching of capsule
> avoid in elderly, CI in DM or osteoporosis (cx: spiral # of humeral shaft)
2. arthroscopic capsular release (stage 2) - division of interval betw supraspinatus and infraspinatus
3. distending joint under pressure w normal saline

w aggressive physiological post op

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Aggravating manoeuvres for

  • tennis elbow
  • golfer elbow
A

tennis (lateral epicondylitis): fully extend elbow, pronate forearm and actively extend wrist against resistance (or passive flexion of wrist)

golfer (medial): fully extend elbow, supinate forearm and actively flex wrist against resistance (passive extension of wrist)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

age where secondary ossific centres appear in children (elbow x ray)

A
CRITOE
Capitulum 2yr 
Radial head 4
Int epicondyle 6
Trochlea 8
Olecranon 10
Ext epicondyle 12
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mgx of tennis elbow/ golfer elbow

A

mild: rest, exercise, lifestyle modification
mod: corticosteroid, H&L
severe: sx to detach common tendon (ECRB), lengthen tendon, excision of fibrous mass, extra-corporeal shockwave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Cubitus varus

  • aka
  • cause
  • cx
  • mgx
A

Gunstalk deformity
malunion of supracondylar #
Cx: median n palsy. no serious cx… sx mainly for cosmesis
Sx: wedge osteotomy of lower humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Cubitus valgus

  • cause
  • cx
  • mgx
A

non union of lateral condylar # (then medial condyle grows more)
- tardy ulnar palsy

Undisplaced: backslab
Moderate displacement: closed reduction + backslab
Unstable: K-wire and cast
Rotated: open reduction and K-wire
Xrays to detect slipping
TUNP: transposing ulnar nerve anterior to eblow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

how to detect radial head dislocation on x ray

A

anterior humeral line: transect middle 3rd of capitulum

radiocapetellar line: dissect capitulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

how to relocate a pulled elbow

A

supinate then flex elbow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the terrible triad

A
  • radial head #
  • coronoid process #
  • MCL injury
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Classic description of colles # and thus M&R method?

A

displaced: dinner fork deformity
- dorsal translation&raquo_space; exaggerate deformity
- shortened&raquo_space; traction
- dorsal angulation&raquo_space; volar tilt
- radial deviation&raquo_space; ulnar tilt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the rule of 11s and its normal measurements

A
  • radial height from scaphoid (head of ulnar to tip of radial styloid): 11cm (< in #)
  • radial inclination: 22 deg (<20 in #)
  • volar tilt of radius (lat view): 11 deg (<11deg in #)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is a barton’s #

- mgx

A

intra-articular smith fracture
- results in anterior subluxation of distal fragment carrying carpus with it (#-dislocation/ subluxation)

Mgx: ORIF with anterior buttress plate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Mgx of greenstick #

A
  • accept angulation of up to 30 deg in children <10yo
  • up to 15deg in >10yo

if not accepted: M&R with thumb pressure
immobilise in full length cast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

causes of tardy ulnar nerve palsy

A

medial and lateral condylar #

monteggia #

17
Q

how can you clinical diagnose elbow dislocation

A

equilateral triangle by epicondyles and olecranon is disrupted

18
Q

cx of gunstock deformity

A

cubitus varus

- ulnar tunnel syndrome

19
Q

Mgx of lateral condylar #

A

SH 1/2: conservative - backslab and re-xray in 5 days, continue backslap for 3 w

SH3/4: closed reduction > internal fixation

20
Q

what innervates supraspinatus and infraspinatus

how to test

A

supra scapular nerve

test:

  • supra: abduction
  • infra: ext rotation of arm
  • sub: geber lift off test
  • abduction paradox and drop arm sign
  • jobe sign: inverting beer can (supra)
21
Q

Types of shoulder instability

A

ANTERIOR (recurrent instability)

  • TUBS: traumatic, unilateral, bankart lesion (tear in glenoid labrum), requiring surgery
  • AMBRII: atrumatic, multidirectional, bilateral, requiring rehabilitation, with inferior capsular shift anf interval closure (check beighton score, sulcus sign) (sx rare: tightening of inferior capsule)

POSTERIOR dislocation
- seizure, electric shock

22
Q

how to differentiate between impingement, tendinitis and tear

A

impingement: hawkin positive
tendinitis: painful arc+ drop arm sign
tear: abduction paradox and drop arm sign

for supraspinatus tendon: Neer impingement test, give H&L

  • tear: no change
  • tendinitis: pain relief w full ROM
23
Q

Treatment of shoulder

  • impingement
  • tear
A

IMPINGEMENT

  • conservative: activity mod, analgesia, support, PT, OT
  • H&L injection
  • surgical: open or arthroscopic subacromial decompression

TEAR

  • conservative: same
  • H&L
  • Sx: open/ artho cuff repair/ debridement and subacromial decompression
24
Q

what is the etiology of rotator cuff impingement

A
  • repetitive rubbing of rotator cuff tendons under coracoacromial joint
  • site: 1cm proximal to insertion into greater tuberosity (dec vascularity of supraspinatus tendon)
  • contributed by: (bone OA swelling, osteophytes) (tendon swelling -RA) (bursa - subacromial bursitis)
25
Q

Ddx for shoulder stiffness

A
  • post traumatic stiffness
  • diffuse stiffness
  • adhesive capsulitis
  • regional pain syndrome (reflex sympathetic dystrophy)
  • infection