[Computer technologies in diagnostics and treatment of worsening post-enucleation socket syndrome]

Enucleation with primary orbital implantation and the use of ocular prosthesis does not exclude the risk of post-enucleation socket syndrome (PESS). Correction of such conditions requires modern visualization methods and software for calculation, modelling and control of the surgery.

To demonstrate the capabilities of modern computer technologies in diagnostics and treatment of patients with worsening post-enucleation enophthalmos.

The retrospective study included 6 patients (4 male and 2 female) aged 29-68 years who exhibited signs of PESS in 2017-2018. To define the orbital condition, patients underwent multispiral computed tomography (MSCT) and magnetic resonance imaging (MRI) followed by image analysis with computed exophthalmometry and step-by-step computed exophthalmometry. Results of these examinations helped construct 3D-models of patients' orbits, which were then used to calculate the parameters of the silicone implants. Patient-specific silicone implants were implanted into their orbits during surgery under general anesthesia.

Implantation of the patient-specific silicone implant resulted in increase of the volume behind orbital prosthesis and correction of post-enucleation enophthalmos in all patients allowing them to use thinner, more mobile ocular prosthesis, and restore normal eyelid position. The patients also noted better appearance of the eye and personal comfort.

Modern visualization methods along with computer analysis and modelling, as well as technologies to produce medical products enable creation of the best suitable patient-specific orbital implants. This allows achieving better clinical results and better quality of life for patients with monolateral anophthalmos.