1208 Silent Sinus Syndrome: Systematic Literature Review and Report of Case Treated with A Customised PEEK Orbital Floor Implant

Aim

Silent sinus syndrome is a rare condition characterised by progressive, painless enophthalmos with subsequent development of hypoglobus due to orbital floor resorption. It is caused by hypoplasia of the ipsilateral maxillary sinus due to atelectasis. It may be associated with previous orbital floor surgery or trauma or may be idiopathic. We describe the case of a 33-year-old female treated with a customised orbital floor implant, and a review of the condition from available literature.

Method

A total of 53 patients with a diagnosis of silent sinus syndrome reported in 7 different papers from 2003-2020 were compared in age, presenting signs and symptoms, radiographic findings and the types of treatment provided.

Results

The patients ranged from ages 19 to 91, with an average age of 45.1 years, and a male to female split of 29:24. The most common presenting sign was progressive unilateral enophthalmos, usually in the absence of any ocular symptoms. Treatments included endoscopic maxillary antroscopy, orbital floor repair (prefabricated or customised) and septoplasty.

Conclusions

Silent sinus syndrome typically presents with unilateral enophthalmos which is often painless and not associated with any visual disturbance. It possesses characteristic clinical and radiographic signs. The management of choice is surgical and does not tend to recur in the years immediately following resolving treatment. Since the advent of 3D printing, accurate customised orbital plates can now be designed to correct the hypoglobus which is a major aesthetic component when it presents in this condition.

Choosing the best method to utilise single positron emission computed tomography (SPECT) scans in the management of unilateral condylar hyperplasia

Facial asymmetry secondary to unilateral condylar hyperplasia can be a diagnostic challenge to oral and maxillofacial surgeons. Single positron emission computed tomography (SPECT) scans provide a useful adjunct. We report a brief summary of the evidence describing the effectiveness of different methods of analysing SPECT scans and compare it with the results of a 10-year study at Sunderland Royal Hospital. Overall, both the evidence base and our study strongly favour use of the condyle:condyle ratio over the condyle:reference bone ratio, suggesting that no further comparisons are needed.

The role of thoracic computed tomography in staging newly-diagnosed oral squamous cell carcinoma

Patients who present with squamous cell carcinoma (SCC) in the head and neck have a serious risk of coincident thoracic malignancy. The aim of this study was to identify the incidence of thoracic malignancy in newly diagnosed, previously untreated, oral and oro-pharyngeal SCC, and to evaluate the role of thoracic computed tomography (CT) in its management. Of 116 consecutive patients who were identified prospectively 81(70%) had oral and 35 (30%) oropharyngeal SCC. Ten patients (9%) had suspicious thoracic CT findings. After investigation or follow up, four (3.5%) of these patients were shown to have coincident thoracic malignancies. This large prospective series of newly diagnosed oral and oropharyngeal SCC had a lower incidence of coincident thoracic malignancy than had previously been shown.

Senior house officer training in oral and maxillofacial surgery: a national survey

Service commitments have often taken priority over training for many senior house officers. There have been changes, with more planned to make this truly a training grade. We conducted a national postal survey of senior house officers (SHO) in oral and maxillofacial surgery (OMFS) in 2001/2002. A total of 229 replies were received with an estimated response rate around 70%. Almost 60% of these respondents (57.2%) had been a SHO in OMFS for over 3 years. Only 39% had a weekly bleep-free teaching session. Forty-eight per cent did not think undergraduate BDS training was adequate for their job. This 48% of SHOs were significantly less likely to have out patient clinic sessions with a designated trainer undertaking teaching (chi 2 = 6.127, P = 0.013) or have a bleep-free teaching session (chi 2 = 6.896, P = 0.009). Sixty-four per cent had received formal training in medical examination of patients. Twenty-nine per cent had not been appraised during their present post. Forty-two per cent of SHOs in OMFS are in band 3 posts. Improvements have been made, but there is a case for further change.

Current practice of British oral and maxillofacial surgeons: advice regarding length of time to refrain from contact sports after treatment of zygomatic fractures

OBJECTIVE

To find out the current practice of consultant maxillofacial surgeons in the United Kingdom regarding the advice that they give to patients after the treatment of zygomatic fractures.

MATERIALS AND METHODS

We sent a postal questionnaire to 261 consultant maxillofacial surgeons in the United Kingdom. They were asked what advice they gave to patients about the length of time that they should refrain from contact sports after a zygomatic fracture.

RESULTS

A total of 184 replies were received (70%). Advice about the length of time to refrain from contact sports ranged from none to 13 weeks; 165 (90%) of respondents based their advice on common sense and traditional practice.

CONCLUSIONS

Advice given to the patients after the treatment of zygomatic fractures varies widely. Most consultants base their advice on traditional practice and common sense. No widely accepted evidence-based guidelines exist about post-operative advice concerning duration of avoidance of contact sports after zygomatic fractures.