scholarly journals Use of CAD–CAM Bridging Mandibular Prosthesis in Osteonecrosis of the Jaw: The Experience of Our School

2020 ◽  
Vol 9 (11) ◽  
pp. 3516
Author(s):  
Francesco Ricotta ◽  
Salvatore Battaglia ◽  
Federico Bolognesi ◽  
Francesco Ceccariglia ◽  
Claudio Marchetti ◽  
...  

Osteonecrosis of the jaw (ONJ) is a disease that affects the jaw. It is mainly related to radiation or bisphosphonates therapy, and the symptoms and signs consist of pain, bone exposure, inflammation of the surrounding soft tissue swelling, and secondary infection or drainage. In the case of advanced disease of the mandibular area, the treatment of choice is mandibular resection and reconstruction. In the present study, we report a case series of patients affected by ONJ and treated with a customised bridging mandibular prosthesis-only technique. From 2016 to 2018, we treated five consecutive patients affected by ONJ: three patients were affected by biphosphonate-related osteonecrosis of the mandible (BRONJ) and two were affected by osteoradionecrosis of the mandible (ORNJ). Three patients needed a soft tissue free flap to permit optimal wound closure, intra- and/or extraorally. All reconstructive procedures were carried out successfully, with no major or minor microvascular complication. The average postoperative follow-up was 24.8 (range 10–41) months. Considering that microvascular bone transfer is a high-risk procedure in BRONJ patients, we can conclude that the positioning of a customised bridging mandibular prosthesis (CBMP), whether or not associated with a microvascular soft tissue transfer, is a safe technique in terms of surgical outcome and feasibility.

2021 ◽  
Vol 11 (22) ◽  
pp. 11069
Author(s):  
Salvatore Battaglia ◽  
Francesco Ricotta ◽  
Salvatore Crimi ◽  
Rosalia Mineo ◽  
Fabio Michelon ◽  
...  

Purpose: Computer-aided methods for mandibular reconstruction have improved both functional and morphological results in patients who underwent segmental mandibular resection. The purpose of this study is to evaluate the overlaying of virtual planning in terms of measures of the Computer Assisted Design/Computer Assisted Manufacturing CAD/CAM plate for mandibular reconstruction in patients who are ineligible for the insertion of reconstructing the titanium plate supported by fibular free flap, due to their poor health status, or in the presence of specific contraindications to autologous bone flap harvest. Materials and methods: The retrospective study performed analyzed the results of nine patients. The patients were treated at the Maxillofacial Surgery Unit of Policlinico S. Orsola of Bologna, Italy, and Policlinico San Marco, Catania, Italy, from April 2016 to June 2021. Superimposition between planning and post operative Computed Tomography CT scan was performed to assess the accuracy. Results: All reconstructive procedures were carried out successfully. No microsurgery-related complications occurred. In two cases, we had plate misplacement, and in one case, plate exposure that led to plate removal. The average accuracy of the series assessed after CT superimposition, as previously described, was 0.95 mm. Conclusions: Considering that microvascular bone transfer is a high-risk procedure in BRONJ patients, we can conclude that the positioning of a customized bridging mandibular prosthesis (CBMP), whether or not it is associated with a microvascular soft tissue transfer, is a safe technique in terms of surgical outcome and feasibility.


2020 ◽  
Vol 14 (3) ◽  
pp. 260-263
Author(s):  
Guillermo Arrondo ◽  
Daniel Gómez ◽  
Germán Joannas ◽  
Xavier Martín-Oliva ◽  
Matías Iglesias ◽  
...  

Objective: Impingement syndromes are recognized as an important cause of chronic ankle pain, which results from the entrapment of an inflamed soft-tissue component between the osteophytes. The predominant site of occurrence is the anterolateral aspect of the ankle for soft-tissue impingement, and anteromedial aspect for bony impingement. Symptoms related to the physical impact of bone or soft-tissue pain often result in limited ankle range of motion. Methods: We conducted a retrospective study of 34 patients (34 ankles) with anteromedial bony impingement. All patients underwent arthroscopy, with a mean follow-up of 34 months. Results: All osteophytes were removed, and the ankle range of motion improved. The AOFAS score improved from 73 preoperatively to 95 postoperatively. Conclusion: The arthroscopic removal of the anteromedial osteophytes of the ankle had excellent functional results. It is an effective procedure that allows rapid patient recovery. Level of Evidence IV; Therapeutic Studies; Case Series.


2021 ◽  
Vol 15 (5) ◽  
pp. 1529-1532
Author(s):  
M. S. Abdulqader ◽  
L. J. Khorsheed ◽  
Hwaizi .

Background and objectives: Closed reduction and short leg spica casting are the preferred treatment options for children with developmental dysplasia of the hip. This study aimed to show the efficacy behind a standardized closed reduction for managing patients with developmental dysplasia of the hip with concomitant soft tissue releases when indicated and using a short leg plaster of Paris cast to maintain reduction and reporting mid-term results. Methods: A case series of 95 hips in 84 children aged 6-18 months who had closed reduction, with five years follow up or until next operation, involved in this study. The protocol defines acceptable concentric reduction criteria and the indications for an associated soft tissue release. All the patients were immobilized in a short leg cast for three months. Multiple follow-up radiographs were taken to assess Tönnis grade, Severin grade, acetabular index, and osteonecrosis signs. Results: A total of 48 hips were Tönnis grade 3/4 hips. At one year, 15 reductions couldn’t be maintained, and these patients needed open reduction. Of these 15 failed reductions, 7 patients were Severin 1; others were Severin 2. Of the 80 successful closed reductions, 70 hips were Severin 1. Surgical management for residual dysplasia was offered for 8 hips. Osteonecrosis was seen in 23 hips but was transient in 20. Bilateral hip dislocations and most Tönnis 4 hips were more likely to fail. Two children had severe osteonecrosis. Conclusions: Closed reduction, with subsequent adductor and psoas releases, when indicated and using a short leg plaster of Paris cast for three months, brings about good mid-term results in children with developmental dysplasia of the hip aged 6-18 months. Keywords: Developmental dysplasia of the hip, closed hip reduction, open psoas release, short leg cast.


2009 ◽  
Vol 118 (8) ◽  
pp. 546-551 ◽  
Author(s):  
M. Boyd Gillespie ◽  
Thomas S. Dozier ◽  
Terry A. Day ◽  
Bonnie Martin-Harris ◽  
Shaun A. Nguyen

Objectives We determined the effectiveness of calcium hydroxylapatite (CaHA) paste in vocal rehabilitation. Methods We examined a retrospective case series of 39 adult patients who underwent CaHA paste injection for vocal fold rehabilitation over a 5-year period. The outcomes included the change in the Voice Handicap Index (VHI) score; procedure-related complications; and the need for follow-up voice procedures. Results The VHI scores demonstrated overall improvement, with a decrease from the preoperative mean of 61.2 ± 24.0 to a postoperative mean of 35.9 ± 26.3 (p = 0.0001) after a mean follow-up time of 17.8 ± 13.6 months. The procedure was more likely to succeed in patients with paralysis and/or paresis than in patients with glottic soft tissue defects. After injection, the VHI scores worsened in 3 of 7 patients (43%) in the soft tissue defect group, compared to only 2 of 28 (7%) in the paralysis and/or paresis group (p = 0.04). Four of 7 patients with soft tissue defects (57%) required secondary vocal procedures to improve the voice, compared to only 2 of 32 (6%) in the paralysis and/or paresis group (p = 0.006). Conclusions Injection of CaHA paste results in significantly improved vocal scores in the majority of patients. Use of the paste was less satisfactory in patients with soft tissue defects because of poor retention of the paste in the scarred vocal fold remnant.


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Robert A. Goldberg ◽  
Daniel B. Rootman ◽  
Nariman Nassiri ◽  
David B. Samimi ◽  
Joseph M. Shadpour

To present our experience of removing middle to deep orbital tumors using a combination of minimally invasive soft tissue approaches, sometimes under local anesthesia.Methods.In this retrospective case series, 30 patients (13 males and 17 females) underwent tumor removal through eyelid crease (17 eyes), conjunctival (nine eyes), lateral canthal (two eyes), and transcaruncular (two eyes) approaches. All tumors were located in the posterior half of the orbit. Six cases were removed under monitored anesthesia care with local block, and 24 were under general anesthesia.Results.The median (range) age and follow-up duration were 48.5 (31–87) years old and 24.5 (4–375) weeks, respectively. Visual acuity and ocular motility showed improvement or no significant change in all but one patient at the latest followup. Confirmed pathologies revealed cavernous hemangioma (15 cases), pleomorphic adenoma (5 cases), solitary fibrous tumor (4 cases), neurofibroma (2 cases), schwannoma (2 cases), and orbital varix (1 case). None of the patients experienced recurrence.Conclusions.Creating a bony marginotomy increases intraoperative exposure of the deep orbit but adds substantial time and morbidity. Benign orbital tumors can often be removed safely through small soft-tissue incisions, without bone removal and under local anesthesia.


2015 ◽  
Vol 41 (4) ◽  
pp. 450-458 ◽  
Author(s):  
Alessandro Pozzi ◽  
Marco Tallarico ◽  
Alberto Barlattani

This study was carried on to assess the clinical performance of a novel restorative concept consisting in single monolithic lithium disilicate full-contour crowns bonded on computer-aided design/computer-aided manufacturing (CAD/CAM) zirconia complete-arch implant bridges, to overcome the drawbacks related to the chipping of porcelain fused to zirconia restorations. Sixteen patients received 18 implant-supported hybrid screw-cement-retained complete-arch restorations, consisting of single monolithic lithium disilicate full-contour crowns bonded on CAD/CAM zirconia frameworks. The restorations were supported by 4–8 implants. All patients were followed up for at least 3 years on function (range 36 to 60 months, mean 49.3 months). Clinical controls were scheduled every 4 months. The outcomes were implant and prosthetic survival and success rates, any complications, patient satisfaction, and soft tissue parameters. No dropouts occurred. The overall implant and prosthesis survival rates were 100%. One of 18 restorations (1 of 236 dental units) showed a chip-off fracture of the veneering ceramic that was polished intraorally without any additional treatment, scoring a cumulative prosthetic success rate of 100%, according to the California Dental Association index. All patients were functionally and esthetically highly satisfied with their restorations. Successful soft tissue parameters were found around all implants. Single monolithic lithium disilicate full-contour crowns, bonded on CAD/CAM screw-retained complete-arch zirconia frameworks, showed favorable preliminary outcomes with medium-term follow-up. However, randomized controlled studies of this technique are required for further conclusive recommendations.


2018 ◽  
Vol 11 (3) ◽  
pp. 729-734 ◽  
Author(s):  
Montreh Tavakkoli ◽  
Lisa Mueller

Ewing sarcoma is an aggressive mesenchymal malignancy. It is the second most common bone tumor among children and adolescents and less commonly presents as a soft tissue or primary skin lesion. Cutaneous Ewing sarcoma has only been reported in case reports and case series. In this article, we describe a 12-year-old Hispanic female cured of localized, cutaneous Ewing sarcoma (pT1aN0M0) at the 40-month follow-up following surgical resection and adjuvant chemotherapy according to the COG AEWS1031 protocol for Ewing sarcoma of the bone. To our knowledge, this is the first article to provide a potential biological explanation for the differences in the prognosis of Ewing sarcoma of the bone, soft tissue, and skin.


2019 ◽  
Vol 40 (1) ◽  
pp. 34-48 ◽  
Author(s):  
Aaron M Kosins ◽  
Rollin K Daniel

Abstract Background Preservation rhinoplasty (PR) is a new chapter in rhinoplasty history. The term was coined by Daniel in 2018 and represents a fundamental change in philosophy. Objectives The aim of this study is to discuss a single-surgeon case series utilizing PR techniques. Methods One hundred fifty-three primary rhinoplasty cases were studied retrospectively between December 2016 and August 2017. One hundred cases had at least 1 year of follow-up. Technical details were recorded, including dissection plane, ligament preservation, tip support, lateral crural maneuvers, alar contour grafts, and preservation of the dorsum vs traditional reduction. These 100 cases can be categorized as either complete preservation rhinoplasty (PR-C) or partial preservation rhinoplasty (PR-P). Results All patients had open rhinoplasty and the average follow-up time was 13 months. All patients had preservation of the dorsal soft tissue envelope, and in 36 the entire soft tissue envelope and ligaments were preserved. Fifty-four had preservation of the alar cartilages. Thirty-one had dorsal preservation. The combinations include: PR-C (skin, dorsum, and alars): 24; PR-P (skin and dorsum): 2; PR-P (alars and dorsum): 2; and PR-P (skin and alars): 7. Conclusions In most patients, the dorsal soft tissue envelope and nasal ligaments can be preserved. When possible, the lateral crura should be preserved and tensioning chosen over excision. Dorsal preservation is a versatile technique when proper patient selection is undertaken, and long-term issues with the middle vault and keystone area can be avoided. Some patients will benefit from total preservation where nothing is removed/disrupted and underlying structures are reshaped. Level of Evidence: 4


2017 ◽  
Vol 15 (6) ◽  
pp. 664-671 ◽  
Author(s):  
Juergen Grauvogel ◽  
Waseem Masalha ◽  
Dieter Henrik Heiland ◽  
Nadja Jarc ◽  
Tanja Daniela Grauvogel ◽  
...  

Abstract BACKGROUND Piezosurgery (PS) is a relatively new technique based on microvibrations generated by the piezoelectric effect. It selectively cuts bone tissue and preserves the surrounding soft tissue. OBJECTIVE To evaluate the use of PS for performing lateral suboccipital craniotomy. METHODS PS was used to perform a lateral suboccipital craniotomy in 22 patients who underwent surgery for different cerebellopontine angle (CPA) pathologies in the neurosurgical department. The applicability of PS for lateral suboccipital craniotomy was evaluated with respect to safety, preciseness of bone cutting, and in particular the preservation of the adjacent dura and sigmoid and transverse sinuses. RESULTS Lateral suboccipital craniotomy in 22 patients who underwent surgery for different CPA pathologies (13 vestibular schwannoma, 5 petrous bone meningioma, 1 petroclival meningioma, 2 epidermoid cysts, and 1 petrous bone cholesterol granuloma) was performed with PS without any complications. A burr hole was set before piezosurgical craniotomy in 6 patients, with no prior burr hole in 16 patients. Incidental durotomy during piezosurgical craniotomy occurred in 6 patients, and small lacerations of the sigmoid sinus caused by the piezosurgical device were observed in 3 patients. CONCLUSION Although PS is a safe and selective bone cutting technique that preserves the surrounding soft tissue, it can still lead to unintended dural tears during lateral suboccipital craniotomy. This must be kept in mind when using PS for craniotomies and relying on the selective bone cutting properties of PS.


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