ABSTRACT
A man in his 60s presented with diminution of vision of the left eye with nasal bleeding after accidental fall. On examination his left upper eyelid was lacerated and left temporal sclera was punctured which was repaired under local anaesthesia after which he was discharged by ophthalmologists but continued to complain of pain and left nasal obstruction. A non-contrast CT of paranasal sinuses revealed fracture of medial wall of left orbit, left ethmoid haemosinus and a metallic foreign body (FB) in the septum and anterior face of sphenoid. Diagnostic nasal endoscopy performed to remove the metallic FB showed plastic splinters embedded in the mucosa of nasal cavity which was unexpected. Hence, the FB was removed in two sittings because of diagnostic dilemma.
Subject(s)
Foreign Bodies , Humans , Male , Middle Aged , Foreign Bodies/surgery , Foreign Bodies/diagnostic imaging , Foreign Bodies/complications , Tomography, X-Ray Computed , Nose/injuries , Accidental Falls , Orbital Fractures/surgery , Eye Injuries/complications , Eye Injuries/surgery , Eye Injuries/etiology , Endoscopy/methods , Nasal Obstruction/etiology , Nasal Obstruction/surgery , Orbit/injuries , Orbit/diagnostic imaging , Eye Injuries, Penetrating/surgery , Eye Injuries, Penetrating/diagnostic imaging , Eye Injuries, Penetrating/complicationsABSTRACT
The transconjunctival approach, first described by Bourqet in 1923, has become a routine procedure for the management of fractures of the orbital floor, medial and lateral walls, and infraorbital rim. It is also used in aesthetic surgery and access surgery. Different approaches of transconjunctival surgery, however, can be complicated by the complex lower lid anatomy. In this publication we revisit the anatomy of the transconjunctival approach, and discuss the surgical steps for preseptal and postseptal dissection. We introduce the concept of interseptal space (potential space), its anatomy first described in 1991.
Subject(s)
Conjunctiva , Orbital Fractures , Humans , Conjunctiva/anatomy & histology , Conjunctiva/surgery , Orbital Fractures/surgery , Eyelids/anatomy & histology , Eyelids/surgery , Orbit/anatomy & histology , Orbit/surgery , Dissection/methodsABSTRACT
BACKGROUND: Orbital floor fractures result in critical changes in the shape and inferior rectus muscle (IRM) position. Radiological imaging of IRM changes can be used for surgical decision making or prediction of ocular symptoms. Studies with a systematic consideration of the orbital floor defect ratio in this context are missing in the literature. Accordingly, this study on human cadavers aimed to systematically investigate the impact of the orbital floor defect ratio on changes in the IRM and the prediction of posttraumatic enophthalmos. METHODS: Seventy-two orbital floor defects were placed in cadaver specimens using piezosurgical removal. The orbital defect area (ODA), orbital floor area (OFA), position and IRM shape, and enophthalmos were measured using computed tomography (CT) scans. RESULTS: The ODA/OFA ratio correlated significantly (p < 0.001) with the shape (Spearman's rho: 0.558) and position (Spearman's rho: 0.511) of the IRM, and with enophthalmos (Spearman's rho: 0.673). Increases in the ODA/OFA ratio significantly rounded the shape of the IRM (ß: 0.667; p < 0.001) and made a lower position of the IRM more likely (OR: 1.093; p = 0.003). In addition, increases in the ODA/OFA ratio were significantly associated with the development of relevant enophthalmos (OR: 1.159; p = 0.008), adjusted for the defect localization and shape of the IRM. According to receiver operating characteristics analysis (AUC: 0.876; p < 0.001), a threshold of ODA/OFA ratio ≥ 32.691 for prediction of the risk of development of enophthalmos yielded a sensitivity of 0.809 and a specificity of 0.842. CONCLUSION: The ODA/OFA ratio is a relevant parameter in the radiological evaluation of orbital floor fractures, as it increases the risk of relevant enophthalmos, regardless of fracture localization and shape of the IRM. Therefore, changes in the shape and position of the IRM should be considered in surgical treatment planning. A better understanding of the correlates of isolated orbital floor fractures may help to develop diagnostic scores and standardize therapeutic algorithms in the future.
Subject(s)
Cadaver , Enophthalmos , Oculomotor Muscles , Orbit , Orbital Fractures , Tomography, X-Ray Computed , Humans , Enophthalmos/etiology , Enophthalmos/diagnostic imaging , Oculomotor Muscles/diagnostic imaging , Male , Orbital Fractures/diagnostic imaging , Orbital Fractures/complications , Orbital Fractures/surgery , Orbital Fractures/pathology , Female , Aged , Orbit/diagnostic imaging , Orbit/injuries , Middle Aged , Aged, 80 and overABSTRACT
Facial fractures and their historical link to potential blindness have been well-documented, often attributed to optic canal injuries or retinal vascular occlusion. This dire consequence can result from both direct and indirect ocular trauma, including retrobulbar hemorrhage. Traumatic orbital compression can manifest in various forms, such as hematomas, fractured bone fragments, and emphysema, all posing a significant threat to vision, necessitating immediate intervention. In this study, 9 clinical cases of traumatic orbital compression are presented, each characterized by distinct etiologies. The study delves into traumatic orbital compressive syndromes, underscoring the critical imperative of early recognition and treatment to prevent vision loss. Orbital compression, whether from edema, hematoma, or emphysema, collectively culminates in elevated intraorbital pressure and the potential for optic nerve ischemia. Through the presentation of these 9 clinical cases, the article emphasizes the pressing need for timely intervention in addressing orbital compressive syndromes to avert vision loss. Various surgical techniques are elucidated, highlighting the pivotal role of expeditious medical intervention. This article offers invaluable insights into the diagnosis, management, and outcomes of traumatic orbital compressive syndromes.
Subject(s)
Orbital Diseases , Humans , Male , Adult , Female , Middle Aged , Orbital Diseases/etiology , Orbital Diseases/therapy , Orbital Diseases/surgery , Retrobulbar Hemorrhage/etiology , Orbital Fractures/surgery , Orbital Fractures/complications , Hematoma/etiology , Treatment Outcome , Emphysema/etiology , Emphysema/therapy , Edema/etiology , Syndrome , Aged , Tomography, X-Ray Computed , Blindness/etiology , Decompression, Surgical/methodsABSTRACT
PURPOSE: Various materials have been proposed for reconstructing orbital fractures. The materials used must meet certain criteria to ensure their suitability for restoring the structure and function of the organ. These criteria include biocompatibility, ease of application, non-toxicity, hypo-allergenicity, and non-carcinogenicity. In this study, we systematically reviewed the studies regarding the biomaterials in orbital implants and their clinical application. METHODS: A comprehensive search across various databases, including PubMed, Scopus, EMBASE, Cochrane Library, and Web of Science, was conducted until April 10th, 2023. After retrieving the search results and eliminating duplicates, final studies were included after screening through defined criteria. Human and animal studies assessing the clinical application of biomaterials in orbital implants were included. The quality of the case series and controlled intervention studies were evaluated using the NIH tool, and for animal studies, the risk of bias was assessed using SYRCLE's tool. RESULTS: Seventeen studies were included according to defined criteria. These studies aimed to explore the clinical application of biomaterials and examine the associated complications in orbital implants. CONCLUSION: We found that using biomaterials did not result in elevated intraocular pressure (IOP). However, we did observe certain complications, with infection, residual diplopia, and enophthalmos being the most frequently reported issues.
Subject(s)
Biocompatible Materials , Orbital Fractures , Orbital Implants , Animals , Humans , Orbital Fractures/surgery , Plastic Surgery Procedures/methodsABSTRACT
Orbital walls are one of the most common sites of midface fractures and account for ~40% of traumatic injuries in this region. These fractures are often associated with changes in the anatomy of the orbital cavity and frequently affect the orbital inferior wall, infraorbital groove and canal, and medial orbital wall, which leads to changes in its pattern and volume as well. Generally, the forces required for brake superior and lateral walls are greater than those required for thin medial and inferior walls. Disruption of any of these structures leads to the expansion of orbital volume that brings to the appearance of enophthalmos, diplopia, and impaired ocular mobility. The gold standard in the treatment of orbital wall fractures is surgical reconstruction, that includes fracture site exposure, freeing tissue prolapsed into the fracture site, and re-approximating the orbital wall support, usually with an orbital implant. It usually could be achieved by the usage of such as transconjunctival, subciliary, and coronal approaches and implementation of graft and reconstructive materials, including bones, cartilage, titanium, and resorbable mesh. Today, the gold standard in orbital floor reconstruction is the application of titanium mesh orbital plates. However, their implementation could be associated with a number of postoperative complications, such as mispositioning and orbital adherence syndrome. Orbital adherence syndrome is a poorly described and understood phenomenon and appears to occur after the use of large-pored titanium mesh for orbital reconstruction. It usually appears as limited eye movement that appears 1 to 2 weeks after reconstructive procedure. Prevention is possible through careful patient selection and the placement of a smooth interface medium in the initial surgery. The aim of the current study is to present the outcomes of orbital reconstruction done by both orbital mesh and customized ââsmooth-surfaced titanium orbital implants.
Subject(s)
Orbital Fractures , Plastic Surgery Procedures , Surgical Mesh , Humans , Orbital Fractures/surgery , Orbital Fractures/diagnostic imaging , Plastic Surgery Procedures/methods , Male , Syndrome , Adult , Female , Postoperative Complications , Titanium , Treatment Outcome , Bone Plates , Orbit/surgery , Orbital Implants , Enophthalmos/surgery , Enophthalmos/etiologyABSTRACT
OBJECTIVE: This study aimed to investigate the clinical characteristics of patients with complications following inadequate primary orbital fracture repair and to evaluate surgical outcomes of secondary revision orbital reconstruction. METHODS: The authors retrospectively reviewed data from 41 patients who underwent revision orbital reconstruction by a single surgeon following complications from primary orbital fracture repair performed elsewhere. Clinical characteristics, including enophthalmos, exophthalmos, diplopia, ocular motility limitation, epiphora, infraorbital hypoesthesia, infection, eyelid malposition, lagophthalmos, hypoglobus, and compressive optic neuropathy, were assessed. Surgical outcomes of revision surgery were evaluated to determine improvements in clinical deficits and postoperative patient satisfaction. RESULTS: The most common postoperative complications of primary orbital fracture repair were enophthalmos (n=20/41) and diplopia (n=20/41). The mean time between primary and revision surgeries was 67.2 months (range: 1-276 mo). Revision surgery significantly improved enophthalmos, diplopia (Hess area ratio), epiphora (Munk score), periorbital pain, and exophthalmos ( P =0.003, P =0.001, P <0.001, P <0.001, and P =0.007, respectively) compared to the pre-revision state. In addition, 6 patients experienced improved infraorbital hypoesthesia. Among the 41 patients, 23 were very satisfied, 17 were satisfied, and 1 was neutral after revision orbital reconstruction. CONCLUSIONS: Our study highlights the positive impact of revision orbital reconstruction in addressing complications from inadequate primary orbital fracture repair. Surgeons should consider revision surgery to address clinical deficits following prior surgery, especially when anatomic abnormalities are evident in imaging studies, regardless of the time lapse since the initial surgery or concerns about tissue fibrosis and fat atrophy.
Subject(s)
Diplopia , Orbital Fractures , Plastic Surgery Procedures , Postoperative Complications , Reoperation , Humans , Orbital Fractures/surgery , Male , Female , Adult , Retrospective Studies , Middle Aged , Plastic Surgery Procedures/methods , Adolescent , Treatment Outcome , Diplopia/etiology , Diplopia/surgery , Enophthalmos/surgery , Enophthalmos/etiology , Patient Satisfaction , Aged , Child , Exophthalmos/surgery , Exophthalmos/etiologyABSTRACT
PURPOSE: To determine risk factors for substantial closed-globe injuries in orbital fractures (SCGI) and to develop the best multivariate model for the prediction of SCGI. METHODS: A retrospective study was performed on patients diagnosed with orbital fractures at Farabi Hospital between 2016 and 2022. Patients with a comprehensive ophthalmologic examination and orbital CT scan were included. Predictive signs or imaging findings for SCGI were identified by logistic regression (LR) analysis. Support vector machine (SVM), random forest regression (RFR), and extreme gradient boosting (XGBoost) were also trained using a fivefold cross-validation method. RESULTS: A total of 415 eyes from 403 patients were included. Factors associated with an increased risk of SCGI were reduced uncorrected visual acuity (UCVA), increased difference between UCVA of the traumatic eye from the contralateral eye, older age, male sex, grade of periorbital soft tissue trauma, trauma in the occupational setting, conjunctival hemorrhage, extraocular movement restriction, number of fractured walls, presence of medial wall fracture, size of fracture, intraorbital emphysema and retrobulbar hemorrhage. The area under the curve of the receiver operating characteristic for LR, SVM, RFR, and XGBoost for the prediction of SCGI was 57.2%, 68.8%, 63.7%, and 73.1%, respectively. CONCLUSIONS: Clinical and radiographic findings could be utilized to efficiently predict SCGI. XGBoost outperforms the logistic regression model in the prediction of SCGI and could be incorporated into clinical practice.
Subject(s)
Orbital Fractures , Tomography, X-Ray Computed , Humans , Male , Female , Retrospective Studies , Orbital Fractures/diagnosis , Orbital Fractures/epidemiology , Orbital Fractures/complications , Adult , Middle Aged , Young Adult , Adolescent , Wounds, Nonpenetrating/diagnosis , Wounds, Nonpenetrating/complications , Risk Factors , Visual Acuity , Aged , ROC Curve , Eye Injuries/diagnosis , Eye Injuries/epidemiology , ChildABSTRACT
PURPOSE: To present the demographics and clinical characteristics of pure (rim-sparing) orbital roof fractures. METHODS: This retrospective observational study used 10 years of data from a single institution. Patient age, sex, laterality, field of binocular single vision, associated injuries, and radiologic features were analyzed. Orbital roof fractures were categorized into four groups: comminuted/open, hinged, trapdoor, and linear. These were further subdivided into blow-in (-down) and blow-out (-up) fractures. Injury etiology was classified into fall, traffic accidents, sports injuries, assault, work-related, and others. RESULTS: Data documented a low incidence rate of 2.5% (27 patients) in 1074 patients. Most patients were male (81%). The most common cause of injury was fall (48%), followed by traffic accidents (22%). Comminuted/open fractures constituted the bulk of fracture types (54%), followed by hinged, and linear fractures. Blow-in and blow-out fractures had an incidence rate of 50% each. Concomitant fractures of the medial and inferior orbital walls were predominant. Low surgical intervention was noted owing to acceptable field of binocular single vision outcomes, and the field of binocular single vision included the primary position of gaze in 88% of patients. CONCLUSION: Pure orbital roof fractures occurred in 2.5% of patients with pure orbital fractures. Patients were predominantly male with trauma caused by high energy forces, which regularly caused comminution of the roof and fractures of the medial and inferior orbital walls. Most patients were managed conservatively.
Subject(s)
Orbital Fractures , Humans , Orbital Fractures/epidemiology , Orbital Fractures/surgery , Orbital Fractures/complications , Male , Retrospective Studies , Female , Adult , Middle Aged , Aged , Adolescent , Young Adult , Incidence , Accidents, Traffic/statistics & numerical data , Accidental Falls/statistics & numerical data , ChildABSTRACT
OBJECTIVE: Naso-orbito-ethmoidal fractures (NOE) fractures are uncommon but critical injuries. This review aims to investigate the patient factors, procedural factors, and postoperative outcomes associated with the surgical management of NOE fractures. STUDY DESIGN: PubMed and Scopus databases were systematically searched between 1993 and 2023 using the search strategy "(naso-orbito-ethmoidal OR nasoethmoid OR nasoorbitoethmoidal) AND fracture." Articles reporting clinical studies investigating the surgical management of NOE fractures were included. Articles that were duplicates, non-English, or non-full text; reported an unclear age range; reported insufficient data; and/or reported on a sample size less than 10 were excluded. Data on patient factors, procedural factors, and postoperative outcomes were extracted. RESULTS: Of the 412 articles identified, 6 eligible articles (retrospective case series) representing 95 adult cases and 84 pediatric cases were included. The mean ages were 29.0 and 10.2 years, respectively. Most cases were male (65.3%; 73.9%). Motor vehicle accidents were the most common mechanism of injury (79.2% and 50.0%, respectively). Coronal incision was the most common approach. Epiphora (n = 33) and scar problems (n = 21) were the most common complications in adult and pediatric cases, respectively. CONCLUSIONS: Further robust longitudinal studies with a clear description of fracture classification and surgical timing would be helpful. Gaps in knowledge include concomitant injuries, digitally-assisted applications, and risk factors for adverse outcomes.
Subject(s)
Ethmoid Bone , Nasal Bone , Orbital Fractures , Skull Fractures , Humans , Orbital Fractures/surgery , Ethmoid Bone/injuries , Ethmoid Bone/surgery , Skull Fractures/surgery , Nasal Bone/injuries , Nasal Bone/surgeryABSTRACT
PURPOSE: This review aims to compare and evaluate the outcomes achieved by integrating technological aids and the influence of different implant designs in the reconstruction of post-traumatic orbital defects. METHODS: Electronic searches of the MEDLINE, Embase, Cochrane Library, and Google Scholar databases until March 2023 were conducted. Clinical controlled trials, observational studies, cohort studies, and retrospective studies were identified and included. The predictor variables were the integration of technological aids namely, computer-assisted surgical planning, mirror image overlay, and intraoperative navigation with the utilization of different orbital implant designs (standard orbital meshes, preformed implants, prebent implants, and patient-specific implant [PSI]) during post-traumatic orbital reconstruction. The primary outcome variables were orbital volume, diplopia, and enophthalmos. Weighted or mean difference and risk ratios at 95% confidence intervals were calculated, where P ï¼ .05 was considered significant and a random effects model was adopted. RESULTS: This review included 7 studies with 560 participants. The results indicate that the difference in postoperative orbital volume between affected and nonaffected eye showed no statistically significant difference between PSI and prebent group (mean difference, -0.41 P = .28, I2 = 46%). PSI group resulted in diplopia 0.71-fold less than that of the standard orbital mesh group but was not statistically significant (P = .15). Standard orbital mesh group is 0.30 times at higher risk of developing enophthalmos as compared to PSI group (P = .010). The literature suggests PSIs are preferred for patients with large defects (Jaquiéry's III-IV), whereas prebent implants are equally effective as PSIs in patients with preserved infraorbital buttress and retrobulbar bulge. CONCLUSION: PSIs are associated with improved outcomes, especially for correcting enophthalmos. The data suggests the potential efficacy of prebent implants and PSIs in orbital volume corrections. There is a lack of randomized studies. This review should serve as a recommendation for further studies to contribute to the existing literature.
Subject(s)
Orbital Fractures , Orbital Implants , Plastic Surgery Procedures , Surgery, Computer-Assisted , Humans , Plastic Surgery Procedures/methods , Surgery, Computer-Assisted/methods , Orbital Fractures/surgery , Orbit/surgery , Prosthesis Design , Treatment OutcomeABSTRACT
PURPOSE: This article outlines the management of a rare and severe nasoorbital injury resulting from a chainsaw kickback accident in a 60-year-old male. A meta-narrative review of English, French, and German literature indexed in PubMed, Embase, and the Cochrane Library up to January 8, 2024, accompanies the case report. METHODS: This was a case report combined with a comprehensive review based on the 2011 Oxford Centre for Evidence-Based Medicine's highest and most recent level of evidence (LoE) and highest recommendation grade (RG). Rigorous selection criteria were applied. RESULTS: The patient had an open nasal fracture, complex lacerations, and avulsion of the left eyelid, lateral orbital wall and lateral rectus muscle. Staged surgical interventions comprised repositioning and fixation of the fractured nose, buccal mucosal grafting for nasal mucosa and conjunctiva repair, titanium mesh and polydioxanone sheet for lateral orbital wall reconstruction, and subsequent muscle and eyelid repair. The second intervention 3 months postsurgery addressed lateral ectropion, nasal dorsal hump, and nasolacrimal system issues. Despite the rarity of such injuries, evidence-based discussions were conducted. CONCLUSIONS: Complex nasoorbital trauma resulting from chainsaw kickback necessitates a meticulous, staged surgical approach. The inside-out technique proved effective in addressing various challenges. This article concludes with evidence-based recommendations, highlighting the importance of adapting established principles to unique nature of these injuries.
Subject(s)
Plastic Surgery Procedures , Humans , Male , Middle Aged , Plastic Surgery Procedures/methods , Eyelids/injuries , Eyelids/surgery , Orbital Fractures/surgeryABSTRACT
BACKGROUND: Trauma-induced orbital blowout fracture (OBF) with eyeball displacement into the maxillary sinus is rare. CASE PRESENTATION: We present the case of a 14-year-old with a closed head injury, OBF, and displacement of the eyeball into the maxillary sinus following a car accident. A prompt transconjunctival access surgery was performed for eyeball repositioning and orbital reconstruction in a single session, mitigating anaesthesia-related risks associated with multiple surgeries. At the 12-month follow-up, his visual acuity was 20/200. Despite limited eye movement and optic nerve atrophy, overall satisfaction with the ocular appearance was achieved. CONCLUSIONS: This report offers novel insights into the mechanisms of OBF occurrence and the development of postoperative complications.
Subject(s)
Head Injuries, Closed , Ocular Motility Disorders , Orbital Fractures , Male , Humans , Adolescent , Maxillary Sinus , Eye , Orbital Fractures/complications , Orbital Fractures/diagnosis , Orbital Fractures/surgery , Head Injuries, Closed/complicationsABSTRACT
La región orbitaria representa una unidad estética funcional muy importante en la región facial. Se presenta un trabajo retrospectivo de un período de 20 años (2000-2020) de actividad pública-privada en el tratamiento de patología tumoral y traumática de la región orbitaria. Analizamos en 580 casos operados, 184 oncológicos y 396 traumáticos, diferentes aspectos comunes que intervienen en el tratamiento reconstructivo de la región: abordajes, técnicas quirúrgicas, consideraciones anatomofuncionales, principios básicos en cirugía maxilofacial orbitaria y complicaciones, resaltando la importancia del manejo correcto de los tejidos regionales en su reconstrucción. La mejor posibilidad para el paciente de lograr un buen resultado es con una operación primaria correcta. Sus complicaciones son de difícil tratamiento
The orbital region represents a very important functional aesthetic unit in the facial region. A retrospective study of a 20-year period (2000- 2020) of public-private activity in the treatment of tumor and traumatic pathology of the orbital region is presented. We analyzed in 580 operated cases, 184 oncological and 396 traumatic, different common aspects involved in the reconstructive treatment of the region: approaches, surgical techniques, anatomofunctional considerations, basic principles in orbital maxillofacial surgery and complications, highlighting the importance of the correct management of regional tissues in their reconstruction. The best possibility for the patient to achieve a good result is with a correct primary operation. Its complications are difficult to treat
Subject(s)
Humans , Male , Female , Orbital Fractures/surgery , Orbital Neoplasms/surgery , Oral Surgical Procedures/rehabilitationABSTRACT
Gillies temporal approach has been widely used to reduce zygoma fractures. Traditionally, it is the preferred method to reduce the isolated zygomatic arch fracture. It can be combined with other approaches, such as subciliary and intraoral incisions for more complex zygomatic fractures, so-called tripod fractures. In this study, the author hypothesized that complex zygomaticomaxillary bone fracture reduction can successfully be achieved without Gillies temporal incision. The author retrospectively analyzed the medical records and 3D facial Computed Tomography (CT) scans of 80 patients who had orbitozygomaticomaxillary fractures that affected >3 sites among the frontozygomatic suture, zygomaticomaxillary buttress, zygomatic arch, and orbital walls from May 2021 to August 2023. A single surgeon performed all surgical operations. All fractures were reduced with 2 incisions, lower eyelid incisions (subciliary or subconjunctival) and intraoral incisions (gingivobuccal approach), within a week of the initial traumatic event. After sufficient exposure to fractured sites using 2 incisions, the author reduced the fracture with a bony hook at the inferior orbital rim, lateral wall, or Boise elevator at the intraoral incision. All cases were successfully corrected without any complications. In conclusion, the author can successfully reduce complex zygomaticomaxillary fracture combined with orbital wall fractures without temporal Gillies approach.
Subject(s)
Maxillary Fractures , Orbital Fractures , Tomography, X-Ray Computed , Zygomatic Fractures , Humans , Zygomatic Fractures/surgery , Zygomatic Fractures/diagnostic imaging , Retrospective Studies , Male , Female , Orbital Fractures/surgery , Orbital Fractures/diagnostic imaging , Adult , Middle Aged , Maxillary Fractures/surgery , Maxillary Fractures/diagnostic imaging , Adolescent , Young Adult , Imaging, Three-Dimensional , Fracture Fixation, Internal/methods , Treatment OutcomeABSTRACT
To clinically and radiographically evaluate patient-specific titanium meshes via a trans-antral approach for correction of enophthalmos and orbital volume in patients with recent unilateral orbital floor fracture. Seven patients with unilateral orbital floor fractures received patient-specific titanium meshes that were designed based on a mirror-image of the contralateral intact orbit. The patient-specific implants (PSIs) were inserted via a trans-antral approach without endoscopic assistance. The patients were evaluated clinically for signs of diplopia and restricted gaze as well as radiographically for enophthalmos and orbital volume correction. Diplopia was totally resolved in two of the three patients who reported diplopia in the upward gaze. Whereas enophthalmos significantly improved in all but two patients, with a mean value of 0.2229 mm postoperatively compared to 0.9914 mm preoperatively. CT scans showed excellent adaptation of the PSIs to the orbital floor with a mean reduction of the orbital volume from 29.59 cc to 27.21 cc, a mean of 0.6% smaller than the intact orbit. It can be concluded that the proposed PSI can offer good reconstruction of the orbital floor through an isolated intraoral transantral approach with minimal complications. It could of special benefit in extensive orbital floor fractures.
Subject(s)
Dental Implants , Enophthalmos , Orbital Fractures , Humans , Enophthalmos/diagnostic imaging , Enophthalmos/etiology , Enophthalmos/surgery , Diplopia/etiology , Diplopia/surgery , Titanium , Orbital Fractures/complications , Orbital Fractures/diagnostic imaging , Orbital Fractures/surgery , Orbit/diagnostic imaging , Orbit/surgery , Retrospective StudiesABSTRACT
This study aimed to compare the accuracy of inferomedial orbital fracture restoration using customized orbital implant versus 3D preformed titanium mesh. Patients were divided into two groups. Group 1 underwent surgery with customized orbital implants and intraoperative navigation, while group 2 was treated using 3D preformed titanium meshes with preoperative virtual surgical planning (VSP) and intraoperative navigation. Reconstruction accuracy was assessed by: (1) comparing the postoperative reconstruction mesh position with the preoperative VSP; and (2) measuring the difference between the reconstructed and unaffected orbital volume. Pre- and postoperative diplopia and enophthalmos were also evaluated. Fifty-two patients were enrolled (25 in group 1 vs 27 in group 2). The mean difference between final plate position and ideal digital plan was 0.62 mm (SD = 0.235) in group 1 and 0.69 mm (SD = 0.246) in group 2, with no statistical difference between the groups (p = 0.282). The mean volume differences between the reconstructed and unaffected orbits were 0.95 ml and 1.02 ml in group 1 and group 2, respectively, with no significant difference between the groups (p = 0.860). Overall clinical improvements, as well as complications, were similar. 3D preformed titanium meshes can reconstruct inferomedial fractures with the same accuracy as customized implants. Therefore, in clinical practice, it is recommended to use 3D preformed meshes for this type of fracture due to their excellent results and the potential for reducing time and costs.
Subject(s)
Dental Implants , Enophthalmos , Orbital Fractures , Orbital Implants , Humans , Orbital Fractures/diagnostic imaging , Orbital Fractures/surgery , Orbital Fractures/complications , Orbital Implants/adverse effects , Titanium , Retrospective Studies , Surgical Mesh/adverse effects , Orbit/surgery , Enophthalmos/etiology , Enophthalmos/surgeryABSTRACT
To compare the reconstruction of orbital fractures using patient-specific implants (PSI) and conventional pre-formed titanium mesh; to develop a method of three-dimensional (3D) superimposition and analysis of the reconstructed orbits; and to present the pitfalls in 3D planning of orbital PSI and how to avoid them. This was a retrospective study of patients with orbital fractures who were treated in our institution between the years 2022 and 2023 using PSI or conservative prefabricated titanium mesh. Three different methods for virtual reconstruction of orbital fractures were used and are detailed with advantages, disadvantages and indications. Data acquired included age, gender, method of reconstruction, functional outcomes and aesthetic outcomes. 3D analysis for accuracy of reconstruction was performed. A total of 23 patients were included; 12 were treated using PSI and 11 using prefabricated titanium meshes. There were 8 male and 4 female patients in the PSI group comparted to 5 and 6 in the prefabricated group. All three virtual methods for reconstruction were used successfully, each with the proper indications. When comparing PSI reconstruction to conventional mesh, a significant difference in accuracy was observed; PSI cases showed an inaccuracy of 0.58 mm compared to 1.54 mm with the conventional method. Complications are presented, and tips for avoiding them are detailed. Three different methods for virtual reconstruction were used successfully; automated computerized reconstruction is used for small defects, repositioning is the superior method for non-comminuted cases while mirroring is the method of choice in comminuted fractures. 3D analysis can be performed using a novel method detailed in this report. PSI reconstruction showed superior results, indicating it should be the method of choice when possible. Pitfalls are presented and approaches to prevent them are discussed. Orbital reconstruction is a very important entity in maxillofacial surgery with crucial functional and esthetical implications, and one should use virtual planning and PSI implants, as they significantly improve outcomes.
Subject(s)
Dental Implants , Orbital Fractures , Plastic Surgery Procedures , Humans , Male , Female , Titanium , Orbital Fractures/diagnostic imaging , Orbital Fractures/surgery , Orbital Fractures/complications , Surgical Mesh , Retrospective Studies , Esthetics, Dental , Orbit/surgeryABSTRACT
Craniomaxillofacial trauma is primarily diagnosed and managed by oral and maxillofacial surgeons. Among the cases encountered, midface fractures involving orbital walls are highly prevalent. In these fractures, involvement of the orbital walls, particularly floor of the orbit, can lead to considerable aesthetic and functional limitations. From a maxillofacial perspective, indications for surgical repair of orbital floor encompass marked decrease in ocular motility, fracture affecting more than 50% of surface area, an increase in orbital volume exceeding 18% and enophthalmos greater than 2 mm. In the absence of these discernible signs, surgical intervention is not generally indicated. However, in this case, an early adolescent with a history of midface trauma and minimal orbital floor fracture 8 months earlier presented with progressively delayed onset enophthalmos and hypoglobus closely resembling features of silent sinus syndrome. The enophthalmos and hypoglobus were corrected by placing custom-made non-resorbable high-density polyethylene implant in the orbital floor. Postoperative follow-up demonstrated aesthetically and functionally satisfactory outcomes.