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[Patellofemoral arthroplasty: indication, technique and results].
[trochlear dysplasia]
Although
patellofemoral
arthroplasty
has
been
used
for
more
than
30
years
,
it
is
still
a
challenging
subject
in
orthopedics
.
The
reason
for
this
are
the
complex
kinematics
of
the
patellofemoral
joint
which
are
influenced
by
dynamic
and
static
factors
.
New
implant
concepts
that
incorporate
multiple
coronal
and
sagittal
curvatures
and
surface
controlled
inlay
implantation
show
a
positive
direction
in
modern
patellofemoral
arthroplasty
.
The
purpose
of
this
work
is
the
review
of
the
literature
on
patellofemoral
arthroplasty
and
the
presentation
of
our
own
experience
.
We
present
indications
and
surgical
techniques
of
patellofemoral
arthroplasty
as
well
as
the
most
important
aspects
of
preoperative
evaluation
.
The
patellofemoral
joint
can
be
reconstructed
using
either
an
inlay
or
an
onlay
prosthesis
.
Both
arthroplasty
concepts
are
discussed
.
Additional
pathologies
like
chronic
patellofemoral
instabilities
due
to
dysplasia
,
valgus
/
varus
or
rotational
malalignment
,
and
soft
-tissue
alterations
are
addressed
with
concomitant
procedures
.
Both
inlay
and
onlay
arthroplasty
have
demonstrated
good
functional
outcome
scores
in
patients
with
patellofemoral
osteoarthritis
.
Patients
with
patellofemoral
instability
and
/
or
trochlear
dysplasia
may
benefit
more
from
patellofemoral
arthroplasty
than
patients
with
primary
osteoarthritis
because
not
only
pain
but
also
secondary
pathologies
are
addressed
.
Patellofemoral
arthroplasty
is
an
effective
and
safe
procedure
if
the
indication
criteria
are
respected
and
the
specific
surgical
technique
is
used
.
However
,
comparative
results
on
current
inlay
and
onlay
prostheses
have
not
been
published
in
the
literature
to
date
.
Diseases
Validation
Diseases presenting
"pain"
symptom
achondroplasia
acute rheumatic fever
adrenal incidentaloma
adrenomyeloneuropathy
aniridia
aromatase deficiency
carcinoma of the gallbladder
cholangiocarcinoma
coats disease
congenital diaphragmatic hernia
congenital toxoplasmosis
cushing syndrome
cutaneous mastocytosis
cystinuria
dedifferentiated liposarcoma
dentin dysplasia
dracunculiasis
dystrophic epidermolysis bullosa
epidermolysis bullosa simplex
erdheim-chester disease
erythropoietic protoporphyria
esophageal adenocarcinoma
esophageal carcinoma
esophageal squamous cell carcinoma
fabry disease
familial mediterranean fever
focal myositis
hirschsprung disease
hodgkin lymphoma, classical
holt-oram syndrome
junctional epidermolysis bullosa
kabuki syndrome
kindler syndrome
lamellar ichthyosis
liposarcoma
locked-in syndrome
lymphangioleiomyomatosis
malignant atrophic papulosis
neuralgic amyotrophy
oligodontia
oral submucous fibrosis
papillon-lefèvre syndrome
phenylketonuria
pleomorphic liposarcoma
primary hyperoxaluria type 1
proteus syndrome
pyomyositis
scrub typhus
sneddon syndrome
systemic capillary leak syndrome
thoracic outlet syndrome
trochlear dysplasia
typhoid
von hippel-lindau disease
waldenström macroglobulinemia
well-differentiated liposarcoma
wolf-hirschhorn syndrome
This symptom has already been validated