Musculoskeletal Sonography: A Dynamic Tool for Usual and Unusual Disorders
Viviane Khoury1,
Étienne Cardinal2 and
Nathalie J. Bureau2
1 Department of Radiology, Notre-Dame Hospital, University of Montreal, 1850
Sherbrooke St. E, Montreal, QC, Canada H2L 4M1.
2 Department of Radiology, St-Luc Hospital, University of Montreal, Montreal,
QC, Canada.

View larger version (81K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1A Shoulder impingement syndrome. Diagram of coronal section
through glenohumeral joint shows anatomic relationship of supraspinatus
tendon, subacromial-subdeltoid bursa, and acromion. Arrow points to movement
of tendon and bursa with shoulder abduction. SS = supraspinatus tendon.
|
|

View larger version (54K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1B Shoulder impingement syndrome. Sonogram (left) and
photograph (right) of dynamic maneuver technique; see text for
explanation of maneuver. There is complete passage of tendon and
subacrominal-subdeltoid bursa under acromion. For video see supplemental
Figures S1B and S1C. In both maneuvers, video of sonogram shows smooth gliding
of tendon and subacrominal-subdeltoid bursa under acromion.
|
|

View larger version (53K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1C Shoulder impingement syndrome. Sonogram (left) and
photograph (right) of dynamic maneuver technique; see text for
explanation of maneuver. There is complete passage of tendon and
subacrominal-subdeltoid bursa under acromion. For video see supplemental
Figures S1B and S1C. In both maneuvers, video of sonogram shows smooth gliding
of tendon and subacrominal-subdeltoid bursa under acromion.
|
|

View larger version (60K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 1D Shoulder impingement syndrome. Coronal sonogram of moderate
shoulder impingement syndrome shows bunching up of subacromial-subdeltoid
bursa (asterisk) lateral to acromion (A) during shoulder abduction. T
= greater tuberosity. For video, see supplemental Figure S1D.
|
|

View larger version (88K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 2 Long head of biceps tendon dislocation. Transverse sonogram
shows medial dislocation of long head of biceps tendon (arrow) out of
bicipital groove (BG) during external rotation of glenohumeral joint.
|
|

View larger version (66K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 3 Trigger finger. Longitudinal sonogram of trigger finger at
level of metacarpophalangeal (MCP) joint shows focal tenosynovitis (TS) on
palmar aspect of flexor tendon (T) and thickened A1 pulley. There is
hesitation of flexor tendon movement during extension. For video, see
supplemental Figures S3A (normal) and S3B (trigger finger).
|
|

View larger version (82K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 4C "Boxer knuckle." Transverse sonogram of dorsal
aspect of third metacarpophalangeal (MCP) joint (different patient than
B) shows initial anatomic position of extensor tendon of third finger
when MCP joint is in extension. Note fluid in extensor tendon sheath in
keeping with tenosynovitis and focal split of tendon. With flexion, there is
ulnar subluxation of (split) extensor tendon (E) relative to metacarpal head
(MC). For video, see supplemental Figure S4C. (Courtesy of Dhanju J, Toronto,
ON, Canada)
|
|

View larger version (107K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 5A Snapping iliopsoas tendon. Diagram of transverse section of
right hip shows relationship of iliopsoas tendon, hip joint, and surrounding
structures. For video of snapping iliopsoas tendon, see supplemental Figures
S5A-S5C.
|
|

View larger version (146K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 5B Snapping iliopsoas tendon. Streak artifact, manifested by
linear, hyperechoic striated band oriented superoinferiorly (arrow),
in this case of iliopsoas tendon snapping. This artifact is also evident in
video (near end) in supplemental Figure S5B. A = femoral artery.
|
|

View larger version (116K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 6 Snapping iliotibial band: Diagram of transverse section
through iliotibial band rotated 90° clockwise to show orientation of
sonograms in videos. Boxed region indicates area scanned in videos. For
videos, see supplemental Figures S6B-S6D.
|
|

View larger version (70K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 7A Snapping knee syndrome. Snapping meniscus. Coronal sonogram
of medial aspect of femorotibial joint shows heterogeneous torn meniscus.
During flexion and extension, there is abnormal jerking movement of
heterogeneous torn meniscus. Note streak artifact in video, which correlates
with clinical snap. For video, see supplemental Figure S7A.
|
|

View larger version (81K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 7B Snapping knee syndrome. Snapping knee with prosthesis.
Coronal sonogram of medial side of knee (oriented on its side) shows abnormal
movement of polyethylene component (hyperechoic line with ring-down artifact)
that is misaligned with adjacent tibia. Initially polyethylene component is
aligned with adjacent tibia. However, with knee flexion and extension, there
is abnormal movement of component (hyperechoic line with ring-down artifact).
For video, see supplemental Figure S7B.
|
|

View larger version (45K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 8A Peroneal tendon dislocation. Illustration shows anatomy of
peroneus brevis (upper arrow) and longus tendons (lower
arrow) in transverse section through ankle. Curved arrow indicates
direction of peroneal tendon subluxation or dislocation.
|
|

View larger version (54K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 8B Peroneal tendon dislocation. Dynamic maneuver in peroneal
tendon evaluation. During dorsiflexion and eversion of the ankle, the peroneal
tendons maintain their normal position posterior to the lateral malleolus. For
video, see supplemental Figure S8B.
|
|

View larger version (78K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 8C Peroneal tendon dislocation. Transverse sonogram shows
dislocation of peroneal tendons (P), with positioning lateral to fibula (f)
during dorsiflexion and eversion of ankle. For video, see supplemental Figure
S8C.
|
|

View larger version (94K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 8D Peroneal tendon dislocation. Transverse sonogram shows
dislocation of one portion of split peroneus brevis tendon. L = peroneus
longus tendon, f = fibula, arrowheads = split peroneus brevis tendon. For
video, see supplemental Figure S8D.
|
|

View larger version (67K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 9 Pseudomass due to chronic muscle tear. Longitudinal sonogram
of quadriceps muscle during isometric contraction shows proximal retraction
and bulging of muscle secondary to chronic tear more distally, simulating mass
(M) For video, see supplemental Figure S9.
|
|

View larger version (102K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 10A Soft-tissue masses. Lipoma. Sonograms of subcutaneous lipoma
manifested by elliptic, well-defined mass (arrows) that is
compressible. Mass is shown with (right image) and without (left
image) transducer pressure.
|
|

View larger version (87K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 10B Soft-tissue masses. Hematoma. Longitudinal sonogram of calf
muscles shows heterogeneous, oval-shaped hypoechoic complex intramuscular
mass. Compression with transducer shows swirling of liquified contents of
mass, in this case representing hematoma. For video, see supplemental Figure
S10B.
|
|

View larger version (125K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 10C Soft-tissue masses. Venous malformation. Sonogram of calf
muscle shows typical appearance, with hyperechoic fat, multiple dilated
hypoechoic serpiginous vessels, and sluggish flow (hence little signal on
color Doppler sonography). There is increased color signal with dynamic
compression with sonography transducer. For video, see supplemental Figure
S10C.
|
|

View larger version (21K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 11A Ulnar nerve dislocation. Diagram of transverse section
through elbow shows position of normal ulnar nerve (pink) posterior
to medial epicondyle. Note common flexor tendon origin (F, red).
Arrow refers to direction of ulnar nerve dislocation.
|
|

View larger version (72K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 11B Ulnar nerve dislocation. Transverse sonogram during elbow
flexion shows abrupt dislocation of hypoechoic oval-shaped nerve over medial
epicondyle and superficial to common flexor tendon insertion, correlating with
clinical snap. E = epicondyle, arrowhead = dislocated ulnar nerve. For video,
see supplemental Figure S11B.
|
|

View larger version (83K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 12A Joint disorders. Sagittal sonogram of palmar and ulnar aspect
of wrist shows multiple small round hyperechoic bodies in distended
pisiform-triquetral joint recess. With motion and compression (for video, see
supplemental Figure S12A), mobility of these bodies is well shown (sagittal,
followed by transverse scan of same region). PISI = pisiform bone, FCU =
flexor carpi ulnaris tendon, RAD = radius.
|
|

View larger version (71K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 12B Joint disorders. Coronal sonogram of right acromioclavicular
joint shows increased mobility during shoulder motion. For video, see
supplemental Figure S12B. ACRO = acromion, CLAV = clavicle.
|
|

View larger version (89K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 13B Miscellaneous conditions. Tendon impingement by screw.
Longitudinal, followed by transverse sonograms of medial side of ankle show
impingement of tibialis posterior tendon (T) by tip of protruding screw
(arrowheads) with ring-down artifact through cortex. For video, see
supplemental Figure S13B.
|
|

View larger version (66K):
[in this window]
[in a new window]
[as a PowerPoint slide]
|
Fig. 13C Miscellaneous conditions. Costal cartilage fracture.
Longitudinal sonogram along axis of right anterior rib at sternal junction
shows fracture (arrow) of hypoechoic costal cartilage (C) with small
anechoic hematoma (asterisk). With probe compression, there is
abnormal movement at fracture site with slight separation of fragments. For
video, see supplemental Figure S13C.
|
|

CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati What's this?
Copyright © 2007 by the American Roentgen Ray Society.