<p><b>OBJECTIVE</b>To investigate the characteristics and
incidence of the thoracic
deformities in
patients with
microtia.</p><p><b>
METHODS</b>In
Plastic Surgery Hospital, we conducted a
retrospective study of the clinical and radiographical data of 300
patients with
microtia from March 2013 to October 2014. Pearson χ2 test was used to analyze the relationship among
deformities of
ribs and
spine, as well as
microtia.</p><p><b>RESULTS</b>A total of 78 (26.0%)
patients were documented with
rib deformities, 26
patients (8.7%) had spinal
deformities, and 17
patients (5.7% )had both. The
incidence of
rib deformities in
microtia I, II, and III was 7.1% (2/28), 26.7% (62/232) and 35.0% (14/40) respectively. The
incidence of spinal
deformities in
microtia I, II, and III was 3.6% (1/28), 6.5% (15/232) and 25.0% (10/40 respectively. The
patients with
microtia III were found to have a higher
incidence of
ribs and spinal
deformities than those with
microtia II,
patients with
microtia II were found to have a higher
incidence of
ribs and spinal
deformities than those with
microtia I (P < 0.05).</p><p><b>CONCLUSIONS</b>The
incidence of
ribs and spinal
deformities is high in
patients with
microtia. The poorer one auricle developed, the higher the
incidence of thoracic
deformities.</p>