One of the greatest challenges for ocularists is prosthetic fitting in children, especially in children with congenital anomalies such as clinical anophthalmia or functionless (blind) microphthalmia. The most frequent reason for prosthetic fitting in children is a condition following enucleation for retinoblastoma, followed by trauma and congenital pathologies. The standard treatment after enucleation or evisceration begins intraoperatively with the selection of an suitable implant and the use of a conformer at the end of the operation to shape the prosthetic cavity. An initial prosthesis can be fitted 4 weeks postoperatively, with a final fitting taking place 3 months later. If iatrogenic scarring or scarring due to an infection of the prosthetic cavity occurs, the approach of the ocularist must be appropriately adapted with the use of modified prosthesis shapes and shorter treatment intervals. Surgical options include scar excision and oral mucosa or amniotic membrane transplantation. Congenital anomalies require the shortest treatment intervals and even more so for anophthalmia than for microphthalmia. The strategy is characterized by simultaneous stimulation of the soft tissue of the ocular adnexa as well as the bony orbit. As self-inflating hydrogel expanders are no longer available, conservative prosthetic treatment is the only option. Close cooperation between child/parent, ocularist and ophthalmic plastic surgeon is the best prerequisite for a good long-term treatment outcome.
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http://dx.doi.org/10.1007/s00347-022-01794-1 | DOI Listing |
J Clin Med
January 2025
Department of Oral and Maxillofacial Surgery, University Hospital of Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.
: Defects in maxillary and mandibular continuity are common in maxillofacial practice. They can occur after trauma, osteonecrosis, congenital jaw deformities, or surgical resection of benign or malignant tumours. Reconstruction with microvascular bone flaps and subsequent prosthetic rehabilitation is considered the contemporary first line treatment.
View Article and Find Full Text PDFEur J Trauma Emerg Surg
January 2025
Department of Foot and Ankle Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389, Frankfurt, Germany.
Purpose: A pronounced loss of function of the lower limb of various origins, especially with an infection-related course, may require a minor (MIN) or major (MAJ) amputation of the lower limb. Our aim was to contrast the underlying etiology, including previous trauma, surgical procedure, and the subsequent function.
Methods: Between 2012 and 2022, 366 lower limb amputations were considered.
Ann Vasc Surg
January 2025
Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, Emory University School of Medicine; Surgical and Perioperative Care, Atlanta VA Healthcare System. Electronic address:
Introduction: The higher prevalence of multiple chronic conditions and frailty among older adults may increase the physiologic demand required for wound healing after a major lower extremity amputation (LEA). After below knee amputations (BKA), patients generally have improved prosthetic fitting rates, postoperative ambulation, and quality of life compared to an above knee amputation (AKA). However, the benefit of a BKA must be weighed against the risk of wound complications.
View Article and Find Full Text PDFSensors (Basel)
December 2024
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
This study aimed to predict and fit the nonlinear dynamic grip force of the human upper limb using surface electromyographic (sEMG) signals. The research employed a time-series-based neural network, NARX, to establish a mapping relationship between the electromyographic signals of the forearm muscle groups and dynamic grip force. Three-channel electromyographic signal acquisition equipment and a grip force sensor were used to record muscle signals and grip force data of the subjects under specific dynamic force conditions.
View Article and Find Full Text PDFJ Biomech
February 2025
Arts et Métiers Institute of Technology, Université Sorbonne Paris Nord, IBHGC - Institut de Biomécanique Humaine Georges Charpak, HESAM Université, 151 boulevard de l'Hôpital, 75013 Paris, France. Electronic address:
Improper socket fitting in lower-limb prostheses can lead to significant complications, including pain, skin lesions, and pressure ulcers. Current suspension and socket design practices rely predominantly on visual inspection of the residual limb and patient feedback. Monitoring stress distribution at the residual limb/socket interface offers a more objective approach.
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