TRUNK AND LOWER EXTREMITY Flashcards
Posterior and lateral chest wall defects involving three or
more adjacent ribs or that are 5 cm in width or greater
will benefit from skeletal reconstruction.
T.
Bioprosthetic mesh should be used for skeletal chest wall
reconstruction in patients at high risk for wound healing
complications
T
spinal instrumentation should be remove in case of acute wound infection
f spinal instrumentation should be maintained at
all costs in cases of acute wound infection
The paraspinal muscle advancement flap is an
adequate option at any spinal level.
T
Defects of the chest wall and intrathoracic space most commonly result from infection
F Defects of the chest wall and intrathoracic space can result from
tumor resection, infection, radiation injury, or trauma
whereas sternal wounds are most frequently associated with infectious complications after cardiothoracic procedures, such as mediastinitis or sternal
osteomyelitis
T
The posterior trunk is
often related to tumor resection or infectious complications following spinal instrumentation. T. F
T
The
intercostal neurovascular bundle runs along the internal surface of
each rib, at the inferior border
f The intercostal neurovascular bundle runs along the interior surface of
each rib, at the inferior border between the internal and innermost
muscle fibers
the majority of chest wall defect com from locally invading tumors from adjacent structures, including
breast cancer, lung cancer, mediastinal tumors, and mesothelioma
t
majority of chest wall lesions are caused by the hematogenous metastasis of solid tumors,
F minority ofchest wall lesions are caused by the hematogenous metastasis of solid tumors,
osteoradionecrosis of the skeletal
chest wall can emerge many years after the completion of radiation
therapy
T
reconstruction has been shown to decrease postoperative mechanical ventilation and length of stay.
T
defects in previously irradiated
chest walls often do not require skeletal reconstruction because the
radiation-related fibrosis will decrease chest wall compliance, which
in turn, decreases the likelihood of paradoxical motion
T
all synthetic materials carry a risk of infection of up to 5%
depending on the material and study
T
polytetrafluoroethylene FOR CHEST RECONSTRUCTION can be Encapsulates; no tissue ingrowth and Seroma formation
T
Methylmethacrylate features
Cures byan exothermic reaction, putting tissues at risk for thermal injury
* May fracture
* Rigidity is nonanatomic
* No tissue
ingrowth
* Seroma
formation
Bioprosthetic features
■ Expensive
■ Permeable
■ not maintain
chest contour in
large defects
■ Infection/
exposure does
not necessitate
removal
Titanium rib plating
Expensive
■ Long term
durability
unknown
■ Requires an
underlay
synthetic or
biologic mesh
for pleural
reconstruction
■ Requires
specialty
instrumentation
■ Radiopaque
all patients with infection of the chest wall had coexistent necrosis
of the overlying skin flaps
T
A bioprosthetic mesh can revascularize wound
T
A bioprosthetic mesh Initially xenograft t was most commonly used for chest wall reconstruction
F human dermal allograft was most commonly used for chest wall reconstruction
For large skeletal chest wall defects, synthetic and bioprosthetic
meshes are unable to maintain the natural thoracic curvature.
F For large skeletal chest wall defects, synthetic and bioprosthetic
meshes alone are unable to maintain the natural thoracic curvature.
Spanning
plate reconstructions have been associated with a low complication
rate, good cosmetic result, and superior pulmonary function
T
Rib spanning plates should always be combined with a synthetic or
biologic mesh underlay for reconstruction of the parietal pleura
T