Computer Guided Surgery for Implant Placement and Dental Rehabilitation in a Patient Undergoing Sub-Total Mandibulectomy and Microvascular Free Flap Reconstruction

2013 ◽  
Vol 39 (4) ◽  
pp. 497-502 ◽  
Author(s):  
Andrew Dawood ◽  
Susan Tanner ◽  
Iain Hutchison
Keyword(s):  
Free Flap ◽  
Soft Tissues ◽  
Rapid Prototype ◽  
Life Questionnaire ◽  
Invasive Approach ◽  
Jaw Reconstruction ◽  
Post Surgery ◽  
Implant Placement ◽  
Mandibular Body ◽  
Microvascular Free Flap

A 58-year-old patient presented with an extensive, destructive, recurrent pleomorphic adenoma occupying the mandibular body and the soft tissues of the mouth and neck. Resection of the mandible from right ramus to left condylar process, and implant rehabilitation in both jaws with fixed bridgework was planned. Comprehensive presurgical prosthetic work up was carried out to record the existing dental relationship and guide all stages of the reconstruction. The jaw was first grafted with a segmented, fibular microvascular free-flap, which was fixed in place with a fixation plate prebent on a Rapid Prototype Anatomical Model of the jaw. Reconstruction with implant supported fixed partial dentures took place to the dental scheme planned preresection, using a computer guided approach to implant placement in the complex and unfamiliar anatomy of the extensively grafted mandible. This approach facilitated and expedited implant surgery such that treatment could take place using a minimally invasive approach relatively soon after surgery, prior to commencement of radiotherapy, and highlights the importance of a multidisciplinary approach to treatment for patients having extensive surgery to the jaws. The patient's personal assessment 2 years post surgery was recorded using 1999 University of Washington Quality of Life Questionnaire.

Prosthetically Driven Computer-Guided One-Piece Zirconia Implant Placement and Restoration Replacing Missing Central Incisor: A Case Report

2021 ◽  
Author(s):  
Shatha Alshali ◽  
Rayan Asali ◽  
Ammar Almarghlani
Keyword(s):  
Case Report ◽  
Dental Implants ◽  
Soft Tissues ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Central Incisor ◽  
Post Surgery ◽  
Implant Placement ◽  
Provisional Restoration ◽  
Zirconia Implant

Currently, the gold standard materials of choice for dental implants are the commercially pure titanium. However, these materials may have suboptimal anterior esthetic outcome due to the dark grayish burnout. To enhance the esthetic outcomes, zirconium dioxide materials, with reported long-term success in medical uses and with its tooth-like color, was introduced as a dental implants material. This case report describes the fully guided planning and placement of one-piece zirconia implant replacing missing central incisor. A 21-years-old male patient, non-smoker in excellent general health, presented with a missing tooth #21. Straumann PURE® (4.1x10 mm) Ceramic implant was placed. Three months post-surgery, the soft tissues architecture has been achieved and stabilized, healing was satisfactory around the zirconia implant and provisional restoration. The final layered zirconia crown was fabricated. Two-step cementation technique was used to minimize the excess cement during final delivery of the crown. After delivery of the final restoration, the patient was followed up after 1, 3, 6, and 12 months.

Osteoradionecrosis and microvascular free flap failure managed with negative pressure wound therapy: A case report

2021 ◽  
pp. 1-6
Author(s):  
Michael J. Gigliotti ◽  
Neel Patel ◽  
Caroline McLaughlin ◽  
Alexis Rothermel ◽  
Cathy Henry ◽  
...  
Keyword(s):  
Case Report ◽  
Free Flap ◽  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Wound Therapy ◽  
Flap Failure ◽  
Microvascular Free Flap

Preliminary Functional Outcomes and Quality of Life after Tongue Reconstruction with the Vastus Lateralis Myofascial Free Flap

2021 ◽  
Author(s):  
Armando De Virgilio ◽  
Andrea Costantino ◽  
Raul Pellini ◽  
Gerardo Petruzzi ◽  
Giuseppe Mercante ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Head And Neck ◽  
Free Flap ◽  
Functional Outcomes ◽  
Vastus Lateralis ◽  
Life Questionnaire ◽  
Donor Area ◽  
Tongue Reconstruction ◽  
Eortc Qlq

AbstractThe aim of the present study is to report our preliminary experience with the vastus lateralis myofascial free flap (VLMFF) for tongue reconstruction according to tongue and donor site functional outcomes. Twelve consecutive patients (F: 5; median age: 54.0 years, interquartile range or IQR 42.75–69.0) were included. The validated European Organization for Research and Treatment of Cancer of the Head and Neck 35 Quality of Life Questionnaire (EORTC QLQ-H&N35) and the performance status scale for head and neck cancer (PSS-HN) questionnaires were used to assess the health-related quality of life (HRQOL). The lower extremity functional scale (LEFS) was used to self-report the donor area function. All patients were successfully treated, and no VLMFF failure was detected during a median follow-up period of 10.5 months (IQR: 6.5–33.0). The HRQOL showed a median EORTC QLQ-H&N35 score of 56.0 (IQR: 50.0–72.5). The median PSS-HN score was 80.0 (IQR: 45.0–95.0), 75.0 (IQR: 62.5–100.0), 75.0 (IQR: 62.5–100.0) for “Normalcy of Diet,” “Public Eating,” and “Understandability of Speech,” respectively. The self-reported function of the lower extremities (donor area) showed a median LEFS of 59.0 (IQR: 32.5–74.0). This study reports optimistic data regarding the functional and quality of life outcomes after tongue reconstruction using VLMFF. Prospective controlled studies are needed to demonstrate advantages and disadvantages when compared with other reconstructive techniques.

scholarly journals Titanium Wear of Dental Implants from Placement, under Loading and Maintenance Protocols

2021 ◽  
Vol 22 (3) ◽  
pp. 1067
Author(s):  
Georgios Romanos ◽  
Gerard Fischer ◽  
Rafael Delgado-Ruiz
Keyword(s):  
Adverse Effects ◽  
Inflammatory Response ◽  
Dental Implants ◽  
Soft Tissues ◽  
Loading Conditions ◽  
Material Change ◽  
Implant Placement ◽  
Implant Abutment ◽  
Hard Tissues ◽  
Titanium Nanoparticles

The objective of this review was to analyze the process of wear of implants leading to the shedding of titanium particles into the peri-implant hard and soft tissues. Titanium is considered highly biocompatible with low corrosion and toxicity, but recent studies indicate that this understanding may be misleading as the properties of the material change drastically when titanium nanoparticles (NPs) are shed from implant surfaces. These NPs are immunogenic and are associated with a macrophage-mediated inflammatory response by the host. The literature discussed in this review indicates that titanium NPs may be shed from implant surfaces at the time of implant placement, under loading conditions, and during implant maintenance procedures. We also discuss the significance of the micro-gap at the implant-abutment interface and the effect of size of the titanium particles on their toxicology. These findings are significant as the titanium particles can have adverse effects on local soft and hard tissues surrounding implants, implant health and prognosis, and even the health of systemic tissues and organs.

scholarly journals The Cat Mandible (II): Manipulation of the Jaw, with a New Prosthesis Proposal, to Avoid Iatrogenic Complications

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 683
Author(s):  
Matilde Lombardero ◽  
Mario López-Lombardero ◽  
Diana Alonso-Peñarando ◽  
María del Mar Yllera
Keyword(s):  
Imaging Techniques ◽  
Recovery Period ◽  
Prosthesis Design ◽  
Patient Specific ◽  
Mandibular Fractures ◽  
Rigid Fixation ◽  
Invasive Approach ◽  
Non Invasive ◽  
Iatrogenic Complications ◽  
Mandibular Body

The cat mandible is relatively small, and its manipulation implies the use of fixing methods and different repair techniques according to its small size to keep its biomechanical functionality intact. Attempts to fix dislocations of the temporomandibular joint should be primarily performed by non-invasive techniques (repositioning the bones and immobilisation), although when this is not possible, a surgical method should be used. Regarding mandibular fractures, these are usually concurrent with other traumatic injuries that, if serious, should be treated first. A non-invasive approach should also first be considered to fix mandibular fractures. When this is impractical, internal rigid fixation methods, such as osteosynthesis plates, should be used. However, it should be taken into account that in the cat mandible, dental roots and the mandibular canal structures occupy most of the volume of the mandibular body, a fact that makes it challenging to apply a plate with fixed screw positions without invading dental roots or neurovascular structures. Therefore, we propose a new prosthesis design that will provide acceptable rigid biomechanical stabilisation, but avoid dental root and neurovascular damage, when fixing simple mandibular body fractures. Future trends will include the use of better diagnostic imaging techniques, a patient-specific prosthesis design and the use of more biocompatible materials to minimise the patient’s recovery period and suffering.

Tissue Engineered Successful Reconstruction of a Complex Traumatized Lower Extremity

2021 ◽  
Vol 11 (9) ◽  
Author(s):  
Srinjoy Saha
Keyword(s):  
Minimally Invasive ◽  
Soft Tissues ◽  
Platelet Rich Plasma ◽  
Thigh Muscle ◽  
Muscle Injuries ◽  
Invasive Approach ◽  
Novel Approach ◽  
Duration Of Surgery ◽  
Biomaterial Application ◽  
Split Skin

Introduction: Tissue engineered reconstruction is a minimally invasive approach for healing major complex wounds successfully. It combines accurate, conservative debridement with a specially adapted suction method, platelet-rich plasma (PRP) injections, and biomaterial application to salvage injured tissues and grows new soft tissues over wounds. Case Report: A healthy young man in his early 30s presented to our emergency department with complex knee-thigh injuries following a high-velocity automobile accident. Degloved anterolateral thigh, severe thigh muscle injuries, and ruptured extensor patellar mechanism were observed. Accurate conservative (as opposed to radical) debridement and PRP injections salvaged the injured muscles and tendons. Specially carved reticulated foam wrapped around the injured ischemic muscles, followed by low negative, short intermittent, cyclical suction therapy. Wound exploration 4 days apart revealed progressive improvements with considerable vascularization of the injured soft tissues within 2 weeks. Thereafter, meticulous reconstruction of the salvaged muscles and tendons restored anatomical congruity. An absorbable synthetic biomaterial covered the sizeable open wound with vast areas of exposed tendons. Five weeks later, exuberant granulating tissue ingrowth within the biomaterial filled up the tissue defect. A split-skin graft covered the remaining raw areas, which “took” completely. Early rehabilitation enabled the patient to return to active work, play contact sports, and perform strenuous activities effortlessly. Conclusion: Minimally invasive tissue engineered reconstruction is a novel approach using a series of simple minimally invasive procedures. It lessens the duration of surgery and anesthesia, maximizes soft-tissue salvage, lowers morbidity, minimizes hospitalization, saves costs, and improves the patient’s quality of life significantly. Keywords: Mangled extremity, Limb salvage, Financial, Trauma, Modified negative pres

Effectiveness analysis of the new method of antireflux surgery in patients with hiatal hernia

2020 ◽  
Vol 26 (4) ◽  
pp. 50-55
Author(s):  
A.R. Stasyshyn ◽  
◽  
A.A. Hurayevskyy ◽  
Yu.Y. Holyk ◽  
◽  
...  
Keyword(s):  
Quality Of Life ◽  
Los Angeles ◽  
Hiatal Hernia ◽  
Antireflux Surgery ◽  
New Method ◽  
Life Questionnaire ◽  
Post Surgery ◽  
Group I ◽  
Significant Difference

Aim. To analyze the effectiveness of a new method of antireflux surgery in patients with hiatal hernia. Materials and Methods. The results of treatment of 157 patients with hiatal hernia from 2016 to 2020 are analyzed. The patients were divided into 3 groups: group I, N=59, underwent laparoscopic antireflux operation modified by the authors (Patent of Ukraine № 59772); group II (N=77), underwent laparoscopic Nissen fundoplication; and group III (N=21) - laparoscopic Toupet fundoplication. Results and Discussion. At 36 months post-surgery follow-up, there was a statistically significant difference in favor of group I on the average scores of the visual analog scale for reflux symptoms, dysphagia and extraesophageal symptoms; the average quality of life questionnaire scores; the average DeMeester index; distribution of the patients by satisfaction; distribution of the patients by degree of reflux esophagitis according to the Los Angeles classification; and distribution by gas-bloat syndrome. Conclusions. Clinical application of the developed new method of laparoscopic surgery for hiatal hernia reduces the number of relapses and complications after surgery, and improves the quality of life of patients. Key words: hiatal hernia, antireflux surgery, new methods of treatment

scholarly journals Results of Microvascular Free Flap for Reconstruction of Soft Tissue Defects: Our Early Experience

2014 ◽  
Vol 3 (2) ◽  
pp. 33-37
Author(s):  
Debashis Biswas ◽  
Md Abul Kalam ◽  
Tanveer Ahmed ◽  
Md Rabiul Karim Khan
Keyword(s):  
Soft Tissue ◽  
Free Flap ◽  
Free Flaps ◽  
Soft Tissue Defect ◽  
Soft Tissue Defects ◽  
Tissue Defect ◽  
Radial Forearm ◽  
After Cancer ◽  
Microvascular Free Flap ◽  
Tissue Defects

Extensive soft tissue defects following trauma, burn or after cancer surgery need coverage by flaps. Sometimes surrounding tissues are not healthy enough or quantity is not favorable to provide adequate pedicle flaps. Microvascular free flap can provide healthy tissue of adequate amount from distant area for those difficult situations.15 microvascular free flaps were performed from October 2011 to February 2013. Radial forearm free flap was done in 8 and Latissimusdorsi (LD) flap in 7 cases. 10 flaps done in foot, ankle & lower leg region (radial forearm-5, LD-5) and 5 flaps were done in face and scalp region (radial forearm-4, LD-1).12 flaps healed uneventfully with good coverage of the defect. Average ischemia time was 135 min (range 100-240 min) and average anastomosis time was 75 min (average 60-100 min). 2 flaps failed. There was necrosis of the tip of 2 LD and cumbersome swelling of the flap was found in 2 cases of LD flaps.Large soft tissue defect of body where local or regional flaps are not feasible; can be easily covered with free flaps. Its capacity to cover huge soft tissue defect has neutralizes its technical demand. Though complications are still high in our hands; can be reduced performing more number of cases. DOI: http://dx.doi.org/10.3329/bdjps.v3i2.18242 Bangladesh Journal of Plastic Surgery July 2012, 3(2): 33-37

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