Copyright © 2017 Mutaz B. Habal, MD. Unauthorized reproduction of this article is prohibited.
that hypoesthesia occurred in 32.9% of 301 patients with orbital
floor fracture. Also, the most common postoperative complication
was hypoesthesia in 34.2%.
7
Rosado and de Vicente
8
reported that
the most frequent sequelae of 314 patients with orbital fractures
were hypoesthesia in 24.5% of patients.
The etiology of traumatic sensory dysfunction of the trigeminal
nerve branches is presumed as nerve compression due to dislocated
bone fragments, nerve traction from a displaced fracture, transection
of the nerve, nerve manipulation by the fracture reduction, and bony
proliferation along a healing fracture site.
10
Hypoesthesia itself is not
a major disability. However, persistent hyperesthesia can be dis-
abling.
6
Although post-traumatic hypoesthesia of the infraorbital
nerve is common, persistent hyperesthesia is rare.
4,5
Bailey et al
4
described chronic infraorbital hyperesthesia by compression in the
infraorbital canal. Soft tissue adhesion and bony impingement to the
infraorbital nerve were the causes of the hyperesthesia.
Our patients had developed a very specific complaint of pro-
gressive hyperesthesia in surgically repaired orbital fracture patients.
In patient 1, the scar tissue formation and bony proliferation are
responsible for persistent hyperesthesia after fracture reduction.
Boyne reported, in monkeys, that disruption of the inferior alveolar
canal following tooth extraction leads to bony proliferation during the
healing process, which subsequently causes narrowing of the
diameter of the canal and damage to the inferior alveolar nerve.
11
Hence, in patient 1, a similar condition of impaired inferior orbital
sulcus by the fracture was possible.
1
Tiny irregular shaped bones at
the fracture site are likely to leads to bony proliferation during healing
process and it could compress the infraorbital nerve. When inserting
the alloplastic implant, the surgeon need to get clean up the tiny bone
pieces surrounding the infraorbital nerve. It could prevent the nerve
from being compressed by the scar tissue and bony proliferation.
Recently, resorbable alloplastic implants have been used in
the reconstruction of orbital fracture. The dense fibrous capsule
encapsulated alloplastic implant.
12
In patient 2, fibrotic band-like
scar tissue spread through the holes of the mesh that could be happen
an adhesion in the infraorbital nerve. It could cause the infraorbital
nerve to be compressed leading to hyperesthesia. Fibrotic bands
between the infraorbital nerve and alloplastic implant could cause
progressive hyperesthesia. We recommend that the infraorbital nerve
needs to be separated enough from the alloplastic implant through a
careful sharp dissection.
Although complete improvement of infraorbital nerve dysfunc-
tion associated with fractures is expected following surgical repair,
hyperesthesia leads to a serious life-time problem, as in our patients.
These were rare cases of patients who presented with hyperesthesia
after reduction of orbital fracture. Clinician should perform early
surgical decompression of the infraorbital nerve in patient with
persistent hyperesthesia.
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Giant Orf on the Nose
Nurdog˘an Ata, MD,
Halil Emre Go¨g˘u¨s¸, MD,
and Selc¸uk Kilic¸, MD
y
Abstract: Orf is a zoonotic infectious disease caused by parapox-
virus. Orf lesions are typically seen on the hand, but they have rarely
been reported on the nose. Herein, the authors report a rare patient
of an orf lesion on the nose of a 52-year-old man after the Muslim
celebration of the feast of the sacrifice. The lesion spontaneously
recovered 8 weeks after the initial appearance and showed no
evidence of recurrence after 1 year of follow-up. Orf virus
FIGURE 2. (A) Dense infraorbital scar tissue adhesion was demonstrated along
the infraorbital sulcus via transconjunctival approach for orbital floor. The small
bony spur (black arrow) was noted compressing the infraorbital nerve around its
sulcus. (B) The infraorbital nerve around the infraorbital foramen of the maxillary
bone was normal in appearance (black arrow). (C) The band-like dense fibrous
tissue around the implant expanded through the hole of implant toward the
infraorbital nerve (black arrow). (D) The fibrous bands were excised without
damage to the infraorbital nerve.
Brief Clinical Studies The Journal of Craniofacial Surgery
Volume 28, Number 3, May 2017
e234
#
2017 Mutaz B. Habal, MD