Reper intraocular lens with artificial iris: implantation techniques and outcomes

2021 ◽  
pp. 112067212110056
Author(s):  
Rino Frisina ◽  
Chiara Sofia De Biasi ◽  
Luigi Tozzi ◽  
Irene Gius ◽  
Davide Londei ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Surgical Procedures ◽  
Surgical Techniques ◽  
Surgical Approaches ◽  
Simultaneous Treatment ◽  
Artificial Iris ◽  
Implantation Techniques ◽  
Exact Position ◽  
Fixation Points ◽  
The Stability

The authors describe the surgical techniques to implant a novel intraocular lens with artificial iris (Reper) in patients affected by traumatic aphakia and aniridia. Two surgical approaches are proposed: implantation by suture-loaded cartridge and “open sky” implantation combined with penetrating keratoplasty. The method of establishing the exact position of the scleral fixation points and the pre-assembly of the suture of Reper before its implantation are the main novel proposed surgical procedures. The rationale is to minimize surgical procedures in the anterior chamber and to prevent knot loosening and lens tilting. The simultaneous treatment of aphakia and aniridia with a single prosthesis, the stability of the Reper and the functional, anatomical and aesthetic outcomes obtained are the highlighted advantages in this study.

Other surgical approaches in the management of osteoarthritis

2016 ◽  
Author(s):  
Jonas Bloch Thorlund ◽  
L. Stefan Lohmander
Keyword(s):  
Stem Cells ◽  
Surgical Treatment ◽  
Adverse Events ◽  
Surgical Procedures ◽  
Joint Replacement ◽  
Hip Arthroscopy ◽  
Surgical Techniques ◽  
Risk Of Bias ◽  
Surgical Approaches ◽  
Surgical Treatments

Joint replacement is often considered the surgical treatment for patients with osteoarthritis (OA). However, several other surgical treatments, of which some are more frequently performed, have been advocated for patients with OA in order to relieve symptoms, stall progression, and avoid or postpone joint replacement. This chapter briefly describes the most common procedures such as knee and hip arthroscopy and knee and hip osteotomy. It also reviews the evidence for the efficacy of these treatments compared with non-surgical alternatives, which is frequently insufficient due to lack of controlled low-risk-of-bias studies. The risk of adverse events is also reported when data is available. Some of the more recent surgical techniques such as implantation of chondrocytes or stem cells are also described and discussed but their utility for treating osteoarthritis remains uncertain. There is a great need for continued innovation and development of surgical techniques for managing in particular the earlier stages of osteoarthritis. To reduce the risk of future costly failures, a stepwise introduction of new surgical procedures and devices must be encouraged.

scholarly journals Surgery for patellar dislocation has evolved towards anatomical reconstructions with assessment and treatment of anatomical risk factors

2020 ◽  
Author(s):  
Mikko M. Uimonen ◽  
Jussi P. Repo ◽  
Tuomas T. Huttunen ◽  
Heikki Nurmi ◽  
Ville M. Mattila ◽  
...  
Keyword(s):  
Risk Factors ◽  
Surgical Procedures ◽  
Patellar Dislocation ◽  
Ligament Reconstruction ◽  
Surgical Techniques ◽  
Surgical Approaches ◽  
Primary Surgery ◽  
National Hospital Discharge Register ◽  
Total Incidence ◽  
Using Data

Abstract Purpose Increasing knowledge on the treatment of patellar dislocation has resulted in the development of new surgical techniques for patella stabilisation. National incidence and trends in surgery for patellar dislocation were examined using data from the Finnish National Hospital Discharge Register (NHDR). The hypothesis was that an increased understanding of the pathophysiology of patellar instability has increased the popularity of reconstructing damaged structures and modification of anatomical risk factors. Methods Data from the years 1997–2016 were collected from the NHDR database using ICD-10 diagnostic codes and the Nomesco Classification of Surgical Procedures (NCSP) codes. Surgical procedures were categorised into subgroups representing the main surgical approaches of patellar dislocation. Total incidence of surgery for patellar dislocation and change in incidence during the study period were calculated. Results A total of 9702 operations for patellar dislocation were performed during the study period. Median (IQR) patient age at time of primary surgery was 23 (18–34) years. The total incidence of surgeries remained stable across the study period at of 8.9 per 100,000 person-years. Incidences of ligament reconstruction, femoral osteotomies and osteochondral fragment reimplantation operations multiplied during the study period. Ligament reconstruction procedures were the most performed operations at the end of the study period. Conclusion The incidence of surgical procedures for patellar dislocation remained unchanged during the years 1997–2016. Ligament reconstruction procedures increased in popularity. Surgical techniques have shifted towards the reconstruction of damaged structures and the modification of congenital anatomical risk factors for patellar dislocation. Diversified surgical techniques have enabled the tailoring and combining of stabilizing procedures according to the patient’s individual anatomy.

Current Strategies in the Management of Spinal Metastatic Disease

Swiss Surgery ◽  
2003 ◽  
Vol 9 (2) ◽  
pp. 55-62 ◽  
Author(s):  
Bartanusz ◽  
Porchet
Keyword(s):  
Spinal Cord ◽  
Surgical Techniques ◽  
Cord Compression ◽  
Treatment Modalities ◽  
Surgical Approaches ◽  
Spinal Stabilization ◽  
Management Algorithm ◽  
Specific Manner ◽  
Extensive Surgery ◽  
Selection Of

The treatment of metastatic spinal cord compression is complex. The three treatment modalities that are currently applied (in a histologically non-specific manner) are surgery, radiotherapy and the administration of steroids. The development of new spinal instrumentations and surgical approaches considerably changed the extent of therapeutic options in this field. These new surgical techniques have made it possible to resect these tumours totally, with subsequent vertebral reconstruction and spinal stabilization. In this respect, it is important to clearly identify those patients who can benefit from such an extensive surgery. We present our management algorithm to help select patients for surgery and at the same time identifying those for whom primary non-surgical therapy would be indicated. The retrospective review of surgically treated patients in our department in the last four years reveals a meagre application of conventional guidelines for the selection of the appropriate operative approach in the surgical management of these patients. The reasons for this discrepancy are discussed.

scholarly journals The concept of “Four Walls, Two Poles” in the lesions of the thalamus and ganglion regions: case report and literature review

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Haiyang Yang ◽  
Gang Bai ◽  
Yongli Zhang ◽  
Guolong Chen ◽  
Lei Duan ◽  
...  
Keyword(s):  
Basal Ganglia ◽  
Literature Review ◽  
Surgical Resection ◽  
Three Dimensional ◽  
Surgical Techniques ◽  
Surgical Approaches ◽  
Surgical Results ◽  
Case Presentation ◽  
Operation Process ◽  
Thalamic Glioma

Abstract Background There are few articles about the surgical techniques of thalamic glioma and the lesions in the basal ganglia area. According to three existing cases and the literature review (Twelve articles were summarized which mainly described the surgical techniques), we discuss the surgical characteristics of lesions of the thalamus and basal ganglia area and summarize the relevant surgical skills. Case presentation Of the three cases, two were thalamic gliomas and one was brain abscess in basal ganglia. According to the three-dimensional concept of the “Four Walls, Two Poles”, lesions of the thalamus and basal ganglia were surgically removed, and the operative effect was analysed by relevant surgical techniques. Surgical resection of the lesions of the thalamus and basal ganglia area according to the three-dimensional concept of the “Four Walls, Two Poles” has achieved good surgical results. Relevant surgical techniques, such as the use of retractors, the use of aspirators, the choice of surgical approaches, and the haemostasis strategy, also played an important role in the operation process. Conclusions In the presented three cases the three-dimensional concept of the “Four Walls, Two Poles” allowed for safe surgical resection of lesions of the thalamus and basal ganglia.

scholarly journals Primary Malignant Orbital Tumors

2021 ◽  
Vol 82 (01) ◽  
pp. 081-090
Author(s):  
Jacquelyn Laplant ◽  
Kimberly Cockerham
Keyword(s):  
Multimodal Therapy ◽  
Surgical Techniques ◽  
Surgical Approaches ◽  
Imaging Features ◽  
Orbital Surgery ◽  
Diagnosis And Management ◽  
Microsurgical Techniques ◽  
Invasive Techniques ◽  
Traditional Approaches ◽  
Orbital Imaging

Abstract Objective Primary orbital malignancy is rare. Awareness of the characteristic clinical and imaging features is imperative for timely identification and management. Surgery remains an important diagnostic and treatment modality for primary orbital malignancy, but determining the optimal surgical approach can be challenging. The purpose of this article is to explore recent advances in the diagnosis, management, and surgical approaches for primary orbital malignancies. Design In this review, the clinical presentation, imaging features, and medical and surgical management of primary orbital malignancies with representative cases will be discussed. Setting Outpatient and inpatient hospital settings. Participants Patients with diagnosed primary orbital malignancies. Main Outcome Measures Descriptive outcomes. Results Advancements in orbital imaging, microsurgical techniques, and multimodal therapy have improved the diagnosis and management of primary orbital malignancies. Special considerations for biopsy or resection are made based on the tumor's location, characteristics, nearby orbital structures, and goals of surgery. Minimally invasive techniques are supplanting traditional approaches to orbital surgery with less morbidity. Conclusions Advances in imaging technologies and surgical techniques have facilitated the diagnosis and management of primary orbital malignancies. Evolution toward less invasive orbital surgery with focus on preservation and restoration of function is underway.

Vitreoretinal Surgery in the Treatment of Dislocations of Intraocular Lens and Nucleus-Lens Particules into the Vitreous Cavity

2021 ◽  
pp. 2-6
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Relative Frequency ◽  
Surgical Techniques ◽  
Vitreoretinal Surgery ◽  
Vitreous Cavity ◽  
Intraocular Lenses

Drops of lens nucleus/cortex particles into the vitreous cavity or dislocations of intraocular lenses (IOLs) are one of the serious complications of cataract surgery with an increasing relative frequency with the increase in the number of cataract surgeries. In addition, spontaneous and traumatic dislocations are other common case groups that should be treated. In this article, the vitreous dislocations of nucleus/cortex residues or IOL dislocations are discussed with different vitreoretinal surgical techniques.

scholarly journals Surgery at Cranio-vertebral (CV) Junction: Our Experience of 32 Cases

1970 ◽  
Vol 29 (2) ◽  
pp. 78-84
Author(s):  
FH Chowdhury ◽  
MR Haque ◽  
NKSM Chowdhury ◽  
MS Islam ◽  
Z Raihan ◽  
...  
Keyword(s):  
Surgical Procedures ◽  
Surgical Techniques ◽  
Clinical Findings ◽  
Type I ◽  
College Hospital ◽  
Chiari Malformation Type I ◽  
Female Ratio ◽  
Medical College ◽  
Neoplastic Lesion ◽  
Wide Range

Cranio vertebral (CV) junction is one of the critical sites for surgery. It's anatomy, physiological aspects and pathological involvement varies in a wide range of margins. Common problems are developmental anomalies, traumatic involvement, inflammatory, infective and neoplastic lesion. Management of these problems varies a lot from each other. Aim of the article is to overview the pathologies in this area and to study presentations, investigations, surgical procedures and results of these pathologies. We prospectively analyzed 32 cases of Cranio-vertebral (CV) region surgery in the Department of Neurosurgery Dhaka Medical College Hospital and Mitford Hospital, Dhaka, from 2000 to 2008. In our series, male and female ratio was 7.2:1. Pathologies were atlanto- axial dislocation (AAD), Chiari malformation type –I, schwannoma, meningioma, hydatid cyst and tuberculosis. Common clinical findings were- neck pain, quadriparesis, quadriplegia, hand atrophy, autonomic dysfunction and hypertension. Various types of surgical procedures were done in this series according to the pathology. Death was in 01 case, neurological deterioration seen in one case, 2 cases were neurologically stable and 28 cases (87.5%) improved neurologically where one was non useful improvement (Frankel grade-C). Complete pre operative radiological study is a very important adjunct for a successful surgical result. Proper evaluation of patients with selection of appropriate surgical procedures along with safe surgical techniques are the necessary things for successful surgery in this area. DOI: http://dx.doi.org/10.3329/jbcps.v29i2.7952 (J Bangladesh Coll Phys Surg 2011; 29: 78-84)

Developing Stability of Posterior Mandibular Implants Placed With Osteotome Expansion Technique Compared With Conventional Drilling Techniques

2017 ◽  
Vol 43 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Yen-Ting Lin ◽  
Adrienne Hong ◽  
Ying-Chin Peng ◽  
Hsiang-Hsi Hong
Keyword(s):  
Bone Density ◽  
Surgical Techniques ◽  
Primary Stability ◽  
Conventional Technique ◽  
Implant Stability ◽  
Implant Stability Quotient ◽  
Expansion Technique ◽  
The Stability ◽  
Conventional Drilling ◽  
Secondary Stability

Clinical decisions regarding the stability and osseointegration of mandibular implants positioned using the bone expansion techniques are conflicting and limited. The objective was to evaluate the stability of implants placed using 2 surgical techniques, selected according to the initial width of the mandibular posterior edentulous ridge, with D3 bone density, during a 12-week period. Fifty-eight implants in 33 patients were evaluated. Thirty-two implants in 24 patients were positioned using the osteotome expansion technique, and 26 fixtures in 17 patients were installed using the conventional drilling technique. The implant stability quotient values were recorded at weeks 0, 1, 2, 3, 4, 6, 8, 10, and 12 postsurgery and evaluated using analysis of variance, independent, and paired t tests. Calibrated according to the stability reading of a 3.3-mm diameter implant, the osteotome expansion group was associated with a lower bone density than the conventional group (64.96 ± 6.25 vs 68.98 ± 5.06, P = .011). The osteotome expansion group achieved a comparable primary stability (ISQb-0, P = .124) and greater increases in secondary stability (ISQb-12, P = .07) than did the conventional technique. A D3 quality ridge with mild horizontal deficiency is expandable by using the osteotome expansion technique. Although the 2 groups presented similar implant stability quotient readings during the study period, the osteotome expansion technique showed significant improvement in secondary stability. The healing patterns for these techniques are therefore inconsistent.

scholarly journals Therapeutic efficacy of connective tissue autotransplants with periosteum and platelet rich plasma in the management of gingival recession

2013 ◽  
Vol 70 (7) ◽  
pp. 664-669 ◽  
Author(s):  
Bojan Jovicic ◽  
Zoran Lazic ◽  
Milica Nedic ◽  
Stevo Matijevic ◽  
Aleksandra Gostovic-Spadijer
Keyword(s):  
Connective Tissue ◽  
Surgical Procedures ◽  
Platelet Rich Plasma ◽  
Statistical Significance ◽  
Surgical Techniques ◽  
Gingival Recession ◽  
Contralateral Side ◽  
Test Results ◽  
Keratinized Tissue ◽  
Student’S T

Background/Aim. Gingival recession progression in clinical practaice has influenced the development of various surgical procedures and techniques for solving esthetic imperfections and subjective difficulties coused by gingival recession. The aim of this study was to verify efficacy of surgical procedures and to compare both of surgical procedures through the keratinized tissue width. Methods. The study included 20 teeth with gingival recesion, M?ller class I and II. Ten teeth with gingival recession were treated with connective tissue autotransplants with periosteum in combination with coronary guided surgical flap (CTG group). On the contralateral side 10 teeth with gingival recession were treated with the same surgical procedures but in combination with platelet-rich plasma (CTGPRP group). We measured the keratinized tissue width. For statistical significance we used the Student's t-test. Results. The study reveled a statistical significance in reducing vertical deepress of recession by both used treatments. Root deepness in CTG and CTG-PRP group was 90% and 93.5%, respectively. With both surgical techniques we achieved larger zone of keratinized gingiva but with a wide zone of keratinized tissue in CTG - the PRP group. Conclusion. The concept regeneration technique with PRP and with the stimulating influence of platele activated growth factors results in the regeneration of deep periodontal tissue as an important prerequisite for the successful treatment of gingival recession.

scholarly journals Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yanxiu Sun ◽  
Maximilian Hammer ◽  
Timur M. Yildirim ◽  
Ramin Khoramnia ◽  
Gerd U. Auffarth
Keyword(s):  
Intraocular Lens ◽  
Pupil Size ◽  
Surgical Techniques ◽  
Case Series ◽  
Case Series Study ◽  
Pupil Motility ◽  
Series Study ◽  
Iol Fixation ◽  
Iol Dislocation ◽  
Iris Claw

AbstractAn Intraocular Lens (IOL) fixated on the iris either anteriorly, as a phakic IOL, or posteriorly, as an aphakic IOL, can influence pupil motility. In this interventional case series study, we evaluated pupil size under different levels of illumination (scotopic = 0.04 lx, low-mesopic = 0.4 lx and high-mesopic = 4 lx) for anterior iris-claw IOL fixation for correcting myopia or hyperopia (IFPH), retropupillary iris-claw IOL fixation to correct aphakia or as treatment for late in-the-bag IOL dislocation/subluxation (IFRP), and capsular-fixation IOL in-the-bag implantation (IB). Pupil size was measured preoperatively for the IFPH- and IB-group as well as 6 months after surgery for all groups. We analyzed a total of 70 eyes: 22 eyes of 11 patients with phakic IOLs, 22 eyes of 20 patients in the IFRP group and 26 eyes of 13 patients in the IB group. Both IFPH and IB showed a smaller postoperative scotopic pupil size, compared with the preoperative values. When compared to postoperative values of IB and IFPH, IFRP showed a significantly smaller postoperative scotopic pupil size (IFPH: 5.89 ± 0.83 mm, IFRP: 4.37 ± 0.83 mm, IB: 5.34 ± 0.98 mm, p < 0.001) while no differences were seen at high-mesopic lighting. Neither of the surgical techniques seems to impair the constriction of the pupil.

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