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Results for “Orbital reconstruction”

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At least 19 recordsLinked to original sources
PubMed1977

Uses of RTV silicone in orbital reconstruction.

In a five-year follow-up of 42 patients with unsatisfactory cosmetic results after enulceation, room-temperature vulcanizing (RTV) silicone was used in the surgical correction of enophthalmos and superior sulcus depression. RTV silicone with a catalyst was placed in a dissected pocket subperiosteally along the floor and lateral wall of the orbit to correct the volume deficit. When vulcanizing in situ into soft silicone rubber, the implant conformed to the orbital wall and did not migrate. We determined tissue tolerance to in situ vulcanizing silicone histologically in 30 rats by inserting prevulcanized and in situ vulcanized material in paired subcutaneous pockets. No statistical difference was noted between the two methods. In 11 cases, the same material was used as a convenient stent to maintain the pressure over a graft and to maintain socket size after the reconstruction of a contrated socket, by filling the socket with RTV silicone which surrounded a Kirschner wire drilled through the lateral orbital rim.

Animals↗
PubMed2026

Autologous bone grafts versus alloplastic implants for orbital floor reconstruction: a systematic review and meta-analysis.

PURPOSE: The choice of reconstructive material for orbital floor fractures remains a subject of debate. While autologous bone has historically been considered the "gold standard," alloplastic implants offer potential advantages in reducing surgical morbidity. This meta-analysis aimed to compare the safety and efficacy of autologous bone grafts versus alloplastic implants in orbital floor reconstruction. METHODS: A systematic review was conducted in accordance with PRISMA guidelines (PROSPERO: CRD420251140583). Electronic databases (PubMed, Scopus, Web of Science, Cochrane Library) were searched from inception to August 2025. Randomized controlled trials and comparative cohort studies evaluating functional outcomes (diplopia, enophthalmos) and complications (ectropion, infection, malposition) were included. Data were synthesized using a random-effects model, with risk ratios (RR) and 95% confidence intervals (CI) calculated. RESULTS: Twenty studies comprising 2,119 patients were included. Alloplastic implants demonstrated statistically significant superiority in periocular safety, with a reduced risk of postoperative ectropion compared to autologous grafts (RR = 2.245; p = 0.020). In an exploratory sensitivity analysis excluding one outlier study, autologous grafts were associated with a significantly higher risk of implant malposition (RR = 2.074; p = 0.004). Autologous reconstruction was associated with a strong trend toward increased postoperative pain (p = 0.052) and inherent donor-site morbidity. No statistically significant differences were observed regarding infection (p = 0.402), enophthalmos (p = 0.201), or diplopia (p = 0.221). CONCLUSION: Alloplastic implants were associated with a lower risk of ectropion and implant malposition, with functional outcomes statistically comparable to autologous bone. Given the elimination of donor-site morbidity, alloplastic biomaterials represent a safe and effective alternative for orbital floor reconstruction; however, the predominance of retrospective, heterogeneous studies in the current evidence base means these findings should inform, rather than replace, individualized surgical decision-making pending further high-quality randomized trials.

Humans↗
PubMed1977

The use of lyophilized dura in reconstruction of the orbital floor.

The results and experiences with the use of lyophilised human dura in 52 cases are reported. Experimental work carried out on rabbits demonstrate that human lyodura is replaced by a layer of connective tissue. Both, the results of animal experiments as well as those experienced in 52 clinical cases suggest that lyodura is an excellent material for the reconstruction of defects of the orbital floor.

Adolescent↗
PubMed1977

[Late reconstruction of the orbital floor and zygomatic prominence with a readily vascularized plastic].

An implant made from a new artificial substance "Proplast" consisting of polytetrafluoroethylene and carbon is suitable for the secondary treatment of fractures of the orbital floor and zygoma. Histomorphological studies in animal experiments show rapid vascularisation and tissue ingrowth, which lead to permanent fixation of the implant. Clinical experiments confirm its suitability for the correction of displacement of the eyeball and enophthalmos as well as in the re-establishment of the zygomatic arch. For cosmetic reasons a new operative approach through a combined cantho-conjunctival incision is recommended.

Biocompatible Materials↗
PubMed1979

Orbital decompression.

A new technique for exposure of the orbit for decompression of the orbit is described. It may be used for other purposes such as orbital fracture repair, orbital exploration for tumors in the inferior orbit, or reconstruction of the orbit by a variety of methods. The technique provides ready, broad exposure. The approach also avoids not uncommon complications of the eyelid, approaches to the orbit such as skin shrinkage and ectropion of the lower lid. It also results in minimal cosmetic deformity.

Fractures, Bone↗
PubMed1977

Staged excision and reconstruction of extensive facial-orbital tumors.

Extensive facial-orbital tumors are basal cell carcinomas which are exceptionally difficult to treat by conventional therapy because of: (1) skin involvement of more than one square inch of the eyelids of face; (2) fixation to bone or periosteum at the orbital rim; and (3) extension onto the inner surface of the eyelid or through the orbital septum. Due to indistinct skin margins, visual impressions of the extent of these tumors are unreliable. Radiation is usually contraindicated because of possible bone involvement. Single stage excision of the entire tumor with frozen section evaluation of the margins is difficult because of the extent of the facial and orbital components of the lesion. A technique is described which involves staged excision and reconstruction of such extensive tumors. Stage one involves lamellar resection of the skin tumor. Lamellar resection is a modification of the Mohs technique, using permanent section evaluation of all margins, after which the surgical defect is allowed to heal by granulation or is grafted. Stage two involves en bloc resection of the remaining tumor, with frozen section evaluation of all margins. Stage three involves later cosmetic and functional reconstruction of the orbit and eyelids in a tumor-free location. The use of this technique is demonstrated by the description of a patient who would probably have required exenteration if conventional surgical methods had been used.

Aged↗
PubMed1977

Sinuscopy for the diagnosis of blow-out fractures.

Between 1973 and 1976 thirty-one patients with the symptoms of a blow-out fracture underwent sinuscopy. In all these cases a precise diagnosis was not possible from the clinical and x-ray findings alone without exploratory surgery. In 28 cases an exact diagnosis could be made using sinuscopy; 21 patients with blow-out fractures underwent reconstructive surgery to the orbital floor. In the remaining 7 cases fracture of the orbital floor was ruled out and the patients were spared more extensive diagnostic procedures. In 3 cases the diagnosis of a fracture could not be definitely established. Exploratory surgery of the orbital floor showed blow-out fractures which needed treatment. These findings were photographed; 5 typical photographs of fractures are presented. Sinuscopy provides a simple and sure method in the diagnosis of blow-out fractures. Its early application is recommended in cases of suspected fractures of the orbital floor, since reconstructive surgery of blow-out fractures yields the best functional results when performed within 2 weeks after the accident.

Adolescent↗
PubMed1978

[Reflections concerning reconstruction of the floor of the orbit using a metal grill (author's transl)].

The author presents four cases of patients with collapse of the floor of the orbit, total in three cases and partial in one. The material used was cut from the perforated plates used classically in maxillo-facial surgery. In one cases, the approach was mixed--sinusal and sub-orbital--whilst in the other three a classical sub-orbital-palpebral approach was used. There was one complication of infection 15 days after insertion in the case in which a mixed approach was used, this having no sequelae--one and a half year having elapsed. In all cases, the Lancaster test returned to normal, proving the perfect mobility of the eyeball over the plate. Despite the small number of cases, and a follow-up of no more than one and a half years, the author feels that the ease of use of these plates and the good results obtained here offer a possible future for this method.

Adult↗