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REVOLUTIONIZING ECTOPROSTHETICS IN PATIENTS WITH
METACHRONIC AURICULAR TUMORS VIA 5D DIGITAL DESIGN
Kambarova Shakhnoza Alixuseynovna
Bukhara, Uzbekistan, postal code 200100
Bukhara Innovative education and medical institute,
e-mail: info@bsmi.uz, Shani2112@mail.ru
https://orcid.org/0000-0003-3161-5991
Annotation:
Aesthetic, functional, and psychological illnesses are caused by
defects of the craniofacial region of different etiologies, and these disorders are
frequently only treated surgically using a variety of excision techniques.
Regretfully, not all instances can be resolved surgically in terms of satisfactory
cosmetic results or reconstructive treatments. Sometimes patients refuse major,
multi-stage surgeries because of fear. Facial prosthesis is an alternate therapy
option for patients in the scenarios mentioned. When manufacturing
ectoprostheses, outstanding aesthetic outcomes are achievable because to modern
silicone materials. These devices can be attached using medical adhesives, or the
prosthesis can stick to the skin better thanks to the funnel-shaped structure.
Key words:
anthropometry, craniofacial region, defects, ears
Relevance.
Ectoprosthetics is one alternative available for the rehabilitation
of individuals with abnormalities in the craniofacial region. Structures called
facial ectoprostheses are created from a variety of materials with the goal of
restoring the anatomical integrity (look) of the missing facial area. Aesthetic,
functional, and psychological illnesses are caused by defects of the craniofacial
region of different etiologies, and these disorders are frequently only treated
surgically using a variety of excision techniques. Regretfully, not all instances can
be resolved surgically in terms of satisfactory cosmetic results or reconstructive
treatments. Sometimes patients refuse major, multi-stage surgeries because of
fear. Facial prosthesis is an alternate therapy option for patients in the scenarios
mentioned. When manufacturing ectoprostheses, outstanding aesthetic outcomes
are achievable because to modern silicone materials. These devices can be
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attached using medical adhesives, or the prosthesis can stick to the skin better
thanks to the funnel-shaped structure. Elderly patients with matechronous auricle
tumors were the subjects of the investigation. The majority of the ear concha is
affected by the tumor, resulting in an aesthetic deformity. Patients see surgeons
again to have the missing part restored after rehabilitating. The majority of
medical professionals do not advise restorative procedures when a metachronous
tumor is identified.
Purpose of the study.
to enhance ectoprosthetics in individuals with
matechronous auricle tumors using digital technologies.
Materials and methods.
A targeted patient survey was conducted among
individuals presenting with auricular defects secondary to metachronous tumors of
the ear, with the objective of collecting clinical data and assessing treatment
preferences. While many such cases can typically be addressed through surgical
reconstruction, prosthetic rehabilitation, or other conventional methods, some
present substantial limitations. In certain patients—especially those affected by
metachronous tumor recurrences—surgical intervention is either contraindicated
or yields suboptimal outcomes due to prior surgeries, radiation exposure, or
insufficient tissue for reconstruction. In other cases, the process is excessively
prolonged and offers minimal functional or cosmetic benefit.
In our clinical experience, approximately 3% of all patients with auricular
defects fall into this non-operative category, with a notable prevalence difference
between adults and pediatric cases, observed at a ratio of 1:8. For this subgroup,
we recommend the use of digitally fabricated ectoprostheses as the primary
solution for facial rehabilitation.
Currently, 23 patients under our care rely on permanently worn auricular
epitheses, custom-designed using advanced 5D digital technologies. These
devices are produced using high-precision scanning and modeling tools that
capture the patient’s anatomy, generate symmetrical ear models (often based on
the contralateral ear), and allow for non-invasive prosthetic solutions that do not
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require surgical adjustment. Many patients, appreciating the reversibility and
aesthetic realism of these devices, opt for ectoprostheses as a preferred alternative
to further surgical procedures.
An ectoprosthesis is a custom external prosthetic device designed to
replicate lost facial anatomy, particularly the ear in this context. It serves both to
restore the natural contours of the facial region and to conceal anatomical defects,
typically caused by oncologic resection. These prostheses are manufactured from
medical-grade, skin-compatible silicone, and are designed for secure daily use
through adhesive systems or implant-retained attachments. Beyond restoring
appearance, they play a vital role in improving psychological well-being,
contributing significantly to social reintegration and self-esteem.
The integration of 5D digital workflow into prosthetic fabrication includes
3D surface imaging, automated morphologic adjustments, texture and pigment
mapping, and symmetry optimization using artificial intelligence. This ensures the
final prosthesis is highly accurate, closely matching the patient's skin tone, surface
texture, and anatomical geometry. The result is a prosthetic solution that is
aesthetically realistic, biomechanically comfortable, and adaptable over time.
In conclusion, for patients with non-reconstructable auricular defects,
particularly those resulting from metachronous malignant processes, digitally
designed ectoprostheses offer a viable and effective alternative to traditional
surgical repair. These technologies provide patient-specific solutions that improve
not only aesthetic outcomes but also emotional and social functioning—thus
significantly elevating the overall standard of care in facial prosthetic
rehabilitation.
Results.
Observing patients with ectoprostheses revealed that the material
used to make the prosthesis can change its color and condition depending on the
environment. Strong winds and cold can cause microdefects to appear on the
surface of the prosthesis, and it fades in bright sunlight. As a result, restorations
should be used or the prosthesis should be changed every 1.5 to 2 years.
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Ectoprostheses in children should be replaced more frequently than once a year
because the prosthesis's ability to stay securely in place in the orbital cavity
becomes more difficult as the div grows. On the other hand, prostheses created
with digital technology are more advantageous than those created with analog
technology.
Conclusion.
Therefore, one technique used to help patients with severe
mandibular zone deformities with their cosmetic and psychological rehabilitation
is ectoprosthetics. There are specific guidelines and limitations for this technique.
Additionally, the patient must be appropriately prepared on both a physiological
(such as by treating open wounds) and psychological level (such as by explaining
the guidelines for using an ectoprosthesis). Enhancing the technology for
producing prostheses is crucial because it will greatly enhance the cosmetic
qualities of the products and the environments in which they are used.
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