551 results match your criteria fixed distally

Comparison of the Orientation Angles of Volar Locking Plate Distal Ulnar Locking Screw for Distal Radius Fractures.

J Hand Surg Am 2021 Jun 19. Epub 2021 Jun 19.

Department of Orthopaedic Surgery, Toyonaka Municipal Hospital, Osaka, Japan.

Purpose: This study aimed to measure the angles between the screw and plate in 16 commercially available volar locking plates (VLPs) to determine the fixable intra-articular fragment size.

Methods: Ulnar orientation angles (axial plane) and elevation angles (sagittal plane) between the distal ulnar screw and plate were measured for 14 fixed-angle VLPs and 2 variable-angle VLPs. Each VLP was simulated by 2 surgeons to sit distally and ulnarly in 10 normal distal radius models. Read More

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Immediate rehabilitation of severely atrophic maxilla using trans-sinus nasal protocol and extended-length subcrestal angulated implants. Case series with one-year follow-up.

J Oral Implantol 2021 Jun 5. Epub 2021 Jun 5.

Aria Dental Specialist Implant Centre Prosthodontist Prosthodontics 1002 Hay street Perth 6000 AUSTRALIA Perth western australia 6000 Aria Dental Specialist Implant Centre.

Immediate fixed full arch rehabilitation of the severely atrophic maxilla eliminates the use of a tissue supported prosthesis during the healing phase and maximises patient comfort and quality of life.

The surgical treatment options available for immediate rehabilitation of the severely atrophic maxilla are dependent on the location and availability of the residual alveolar ridge. When bone is only available in the inter canine region, a graftless approach using tilted distal implants may not provide adequate distance between implants for favourable biomechanics. Read More

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Arthroscopic Biceps Tenodesis by Bicortical Drilling Technique.

Arthrosc Tech 2021 Apr 2;10(4):e941-e948. Epub 2021 Mar 2.

Department of Orthopaedics, Faculty of Medicine, Thammasat University Hospital, Pathumthani, Thailand.

Pain arising from the long head of biceps tendon can cause significant disability of the shoulder. In young and physically demanding patients, biceps tenodesis is advised, in which the biceps tendon is cut from the native origin and fixed distally. Many methods have been proposed for this. Read More

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Distal Biceps Reconstruction With an Alternative Technique for Tendon Tensioning and Fixation: A Case Report.

JBJS Case Connect 2021 05 11;11(2). Epub 2021 May 11.

São João University Hospital, Porto, Portugal.

Case: A 41-year-old right-handed male patient presented to our institution with a chronic distal biceps rupture after failed primary surgery 6 months previously. We performed a reconstruction with semitendinosus autograft fixed proximally with a Pulvertaft weave and distally with a cortical button plus interference screw. The patient showed complete pain resolution and excellent functional results. Read More

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First Data on the Parasites of the Pacific Kingcroaker Menticirrhus elongatus (Perciformes: Sciaenidae): Description of a New Species of Rhamnocercoides (Dactylogyridea: Diplectanidae).

Acta Parasitol 2021 Apr 23. Epub 2021 Apr 23.

Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, CEP 23851-970, Brazil.

Introduction: A new monogenean, Rhamnocercoides lambayequensis n. sp. (Dactylogyridea: Diplectanidae), is described based on the specimens collected from the gills of the Pacific kingcroaker Menticirrhus elongatus (Günther 1864) (Perciformes: Sciaenidae), a demersal fish endemic to Eastern Pacific, captured off the South American Pacific coast, Lambayeque Region, Peru. Read More

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Clinical outcomes of single implant supported crowns versus 3-unit implant-supported fixed dental prostheses in Dubai Health Authority: a retrospective study.

BMC Oral Health 2021 04 1;21(1):171. Epub 2021 Apr 1.

Hamdan Bin Mohamed College of Dental Medicine, Mohamed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE.

Background: This study assessed retrospectively the clinical outcomes of single implant-supported crowns and implant-supported fixed dental prostheses (FDPs).

Methods: This case series compared biological and technical complications in single implant-supported crowns and implant-supported bridges in a time framed sample of all patients who received dental implants between 2009 and 2016 in Dubai Health Authority. Only 3-unit implant-supported prostheses (FDPs) with one intervening pontic and an implant each end were included for comparison to single crown supported implants. Read More

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MIPO helical pre-contoured plates in diaphyseal humeral fractures with proximal extension. Surgical technique and results.

Injury 2021 Feb 13. Epub 2021 Feb 13.

Trauma Unit, Hospital Clínico Universitario de Valladolid, 47003 Valladolid (Spain).

Introduction: The aim of this study was to determine the feasibility of applying the MIPO technique with a helical-shaped plate in the treatment of humeral shaft fractures with proximal extension.

Patients And Methods: We present an observational prospective study of patients with a humeral shaft fracture involving the proximal humerus fixed with a long proximal humerus polyaxial locking plate with an anterior curvature and helical shape (ALPS® Zimmerbiomet, Warsaw, Indianapolis, USA), using a MIPO technique. Between January 2017 and July 2020, 15 patients were treated at our institution. Read More

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February 2021

Percutaneous Implantation of a Microcatheter-Port System for Hepatic Arterial Infusion Chemotherapy of Unresectable Liver Tumors: Technical Feasibility, Functionality, and Complications.

Diagnostics (Basel) 2021 Feb 26;11(3). Epub 2021 Feb 26.

Department of Vascular and Interventional Radiology, Image-Guided Therapy Center, François-Mitterrand University Hospital, 14 Rue Paul Gaffarel, BP 77908, 21079 Dijon, France.

To evaluate the feasibility and safety of percutaneously implanted arterial port catheter systems for hepatic arterial infusion of chemotherapy (HAI) in patients with unresectable liver malignancies. From October 2010 to August 2018, arterial port catheters for HAI were percutaneously implanted in 43 patients with unresectable liver malignancies. Three different catheter placement techniques were compared: a conventional end-hole catheter placed in the common hepatic artery (technique 1, = 16), a side-hole catheter with the tip fixed in the gastroduodenal artery (technique 2, = 18), and a long-tapered side-hole catheter with the tip inserted distally in a segmental hepatic artery (technique 3, = 6). Read More

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February 2021

[Comparison between navigated and conventional percutaneous screw fixation of non-displaced scaphoid fractures].

Handchir Mikrochir Plast Chir 2021 Feb 15;53(1):47-54. Epub 2021 Feb 15.

Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Jena, Friedrich-Schiller-Universität, Jena.

Background: Incorrect screw placement and penetration in screw fixation of scaphoid fractures are found in 5 to 30 %. Therefore, optimizing of screw placement is desirable, especially because an exact central position of the screw in the proximal fragment leads to a significant higher stability as a more peripheral position.

Patients Und Methods: 36 patients with an acute non-displaced scaphoid fracture were included in this randomized prospective study. Read More

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February 2021

A Rare Case of an Iliac Fracture at the Iliac Fossa Immediately after Salter Innominate Osteotomy.

Case Rep Orthop 2021 27;2021:6653726. Epub 2021 Jan 27.

Department of Orthopaedic Surgery, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi 409-3898, Japan.

This report presents the unusual case of a 5-year-old girl with iliac fracture just after Salter innominate osteotomy for developmental dysplasia of the hip. The iliac fracture was diagnosed two days after Salter innominate osteotomy, and computed tomography (CT) revealed that it was at the extremely thin portion of the iliac wing called the "iliac fossa." We were able to reduce the fracture by pulling the left leg distally, and after reducing the iliac bone, the ilium was fixed by Kirschner wire from the anteroinferior iliac spine and anterosuperior iliac spine. Read More

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January 2021

Different Interventions for Rehabilitation of the Edentulous Maxilla with Implant-Supported Prostheses: An Overview of Systematic Reviews.

Int J Prosthodont 2021 Suppl;34:s63-s84

Purpose: To synthesize evidence derived from systematic reviews (SRs) on different interventions for rehabilitation of the edentulous maxilla with implant-supported restorations.

Materials And Methods: A protocol-oriented search was established to address the PICO question: What is the current evidence regarding rehabilitation of the edentulous maxilla with different implant-supported prostheses in terms of implant and prosthesis survival? The primary outcomes were implant and prosthesis survival rates evaluated from SRs of clinical studies including adult patients with complete edentulism of the maxilla and comparing different implant-supported rehabilitation strategies. Methodologic quality of the SRs was assessed with the AMSTAR-2 tool. Read More

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February 2021

Distalization in Orthodontics: A Review and Case Series.

Case Rep Dent 2021 20;2021:8843959. Epub 2021 Jan 20.

Orthodontic Department, Faculty of Dentistry, King Abdulaziz University, P.O. Box 80209, Jeddah 21589, Saudi Arabia.

Distalization is a conservative method that is utilized in orthodontics to gain space by moving posterior teeth distally. It may be combined with other space gaining strategies, such as expansion, or can be used alone. Many methods have been used for distalization. Read More

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January 2021

Arthroscopic Proximal Subpectoral Tenodesis of the Long Head of the Biceps.

Arthrosc Tech 2021 Jan 19;10(1):e1-e7. Epub 2020 Dec 19.

Sechenov First Moscow State Medical University, Moscow, Russia.

Biceps tenodesis is a common treatment method for biceps pathology. When tenodesis is located in intra-articular or suprapectoral areas, the biceps is fixed proximally to the zone of degeneration and inflammation, which can cause residual pain as a possible postsurgical complication. The main advantage of this method is that this technique is comparatively easy and can be performed arthroscopically. Read More

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January 2021

Ultrasonography-Guided Minimally Invasive Surgery for Achilles Sleeve Avulsions.

Foot Ankle Int 2021 May 17;42(5):544-553. Epub 2021 Jan 17.

Department of Orthopedic Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.

Background: Achilles sleeve avulsion, a relatively rare disorder, is characterized by sleeve-shaped injury extending from the calcaneus, located near the tendon insertion site. Unlike midsubstance tears of the Achilles tendon, end-to-end repair is difficult because less soft tissue is preserved distally. Open repair with transosseous sutures or suture anchors is currently favored. Read More

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A comparative finite element simulation of locking compression plate materials for tibial fracture treatment.

Comput Methods Biomech Biomed Engin 2021 Jan 4:1-9. Epub 2021 Jan 4.

Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL, USA.

The locking compression plate (LCP) system has several advantages in fracture fixation combining angular stability with the use of locking screws with traditional fixation techniques. However, the system is complex and requiring careful attention to biomechanical principles and good surgical technique. Due to the set of complicate stresses and strains in the LCP system after implantation, the material, which is being used here, is deemed important. Read More

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January 2021

Mechanical environment for lower canine T-loop retraction compared to en-masse space closure with a power-arm attached to either the canine bracket or the archwire.

Angle Orthod 2020 11;90(6):801-810

Objectives: To assess the mechanical environment for three fixed appliances designed to retract the lower anterior segment.

Materials And Methods: A cone-beam computed tomography scan provided three-dimensional morphology to construct finite element models for three common methods of lower anterior retraction into first premolar extraction spaces: (1) canine retraction with a T-loop, (2) en-masse space closure with the power-arm on the canine bracket (PAB), and (3) power-arm directly attached to the archwire mesial to the canine (PAW). Half of the symmetric mandibular arch was modeled as a linear, isotropic composite material containing five teeth: central incisors (L1), lateral incisor (L2), canine (L3), second premolar (L4), and first molar (L5). Read More

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November 2020

Arthroscopic Fixation Technique for Avulsion Fracture of the Posterior Cruciate Ligament From the Tibia.

Arthrosc Tech 2020 Nov 23;9(11):e1819-e1824. Epub 2020 Oct 23.

Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.

This study describes an arthroscopic pullout fixation technique for small and comminuted avulsion fractures of the posterior cruciate ligament from the tibia. Intra-articular surgery required 3 arthroscopic portals, the anterolateral, anteromedial, and posteromedial portals. To simplify surgery, the posterolateral portal was omitted. Read More

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November 2020

The management of Vancouver B1 and C periprosthetic fractures: radiographic and clinic outcomes of a monocentric consecutive series.

Hip Int 2020 Dec;30(2_suppl):94-100

Orthopaedic and Trauma Unit, Department of Surgery, "S. Croce e Carle" Hospital, Cuneo, Italy.

Introduction: Periprosthetic fractures (PFs) are a main complication after total hip arthroplasty (THA), with rising incidence. The optimal treatment of PFs is still being debated in the literature. Historically, high failure and reoperation rates are reported, although the introduction of locking plates has led to improved results. Read More

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December 2020

New Species of Rhabdosynochus Mizelle and Blatz 1941 (Monogenoidea: Diplectanidae) From the Gills of the Cultured Centropomus viridis (Perciformes) in the Mexican Eastern Tropical Pacific.

Acta Parasitol 2021 Jun 8;66(2):487-492. Epub 2020 Nov 8.

Dirección General Adjunta de Investigación en Acuacultura, Instituto Nacional de Pesca Y Acuacultura (INAPESCA), Av. México No. 190, Colonia Del Carmen, C.P. 04100, Mexico City, Mexico.

Purpose: There are currently nine monogenoidean species of Rhabdosynochus infecting the gill lamellae of wild and cultured centropomid fishes from tropical and subtropical waters of the western Atlantic and eastern Pacific Oceans. The purpose of the present study was to describe the morphological distinctiveness of two new species of Rhabdosynochus found on the cultured Centropomus viridis collected from floating cages from the Mexican eastern Tropical Pacific in 2018.

Methods: monogenoideans were fixed with 4-5% formalin solution, observed and measured as temporary or permanent mounts stained with Gomori's trichrome, and mounted in Canada balsam. Read More

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The Role of Stem Modularity in the Failure of Internal Fixation in Geriatric Patients With Distally Fixed Hemiarthroplasty.

Orthopedics 2021 Jan 22;44(1):e119-e124. Epub 2020 Oct 22.

The aim of this study was to compare the radiological and clinical outcomes of the same make of modular and monoblock tapered fluted stems in patients with failure of internal fixation following osteoporotic intertrochanteric fracture. This retrospective, comparative study included patients older than 65 years who underwent hemiarthroplasty with a modular or monoblock distally fixed fluted stem and had failed treatment with proximal femoral nailing between 2012 and 2017, with at least a 2-year follow-up period. Radiographic and clinical evaluations of the groups were compared. Read More

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January 2021

Distally based peroneal artery perforator-plus fasciocutaneous flap in the reconstruction of soft tissue defects over the distal forefoot: a retrospectively analyzed clinical trial.

J Orthop Surg Res 2020 Oct 21;15(1):487. Epub 2020 Oct 21.

Department of Orthopaedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, People's Republic of China.

Background: Distally based peroneal artery perforator-plus fasciocutaneous (DPAPF) flaps are widely used for reconstructing soft-tissue defects of the lower extremity. However, reports on the reconstruction of the defects over the distal forefoot using the DPAPF flaps are scarce. Herein, we describe our experience on the reconstruction of these defects using DPAPF flaps in a considerable sample size. Read More

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October 2020

Intertrochanteric fracture with distal extension: When is the short proximal femoral nail antirotation too short?

Injury 2021 Apr 14;52(4):926-932. Epub 2020 Oct 14.

Department of Orthopaedic Surgery, Annex 1 Level 2, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore.

Introduction: The lesser trochanter (LT) fragment in the multifragmentary intertrochanteric femur fracture (AO 31A2.2) may extend distally. If the fragment extends too distally, fixation with a short proximal femoral nail antirotation (PFNA-II) device may not be sufficient. Read More

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Distally-fixed non-modular monoblock fluted long-stem hemiarthroplasty versus proximal femoral nailing for elderly patients with an osteoporotic intertrochanteric fracture: a retrospective comparative study.

Hip Int 2020 Oct 6:1120700020963529. Epub 2020 Oct 6.

Department of Physical and Rehabilitation Medicine, Türkmenbaşı Medical Centre, Adana, Turkey.

Background: The treatment of Intertrochanteric fractures in the elderly osteoporotic patient is still controversial. The aim of this study was to compare the outcomes of proximal femoral nailing (PFN) and a distally-fixed non-modular monoblock fluted long-stem hemiarthroplasty (HA) in elderly patients with an osteoporotic intertrochanteric fracture.

Methods: This retrospective study included patients who had undergone surgery for an unstable intertrochanteric fracture. Read More

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October 2020

Trochanteric Flip (Ganz) Anterior Hip Dislocation for Fixation of Pipkin Fracture-Dislocations.

JBJS Essent Surg Tech 2020 Jul-Sep;10(3). Epub 2020 Jul 24.

Rela Institute of Orthopaedics, Dr. Rela Institute & Medical Centre, Chennai, India.

Safe surgical dislocation with a trochanteric flip osteotomy has been shown to be a reliable technique that provides excellent exposure for treating femoral-head fractures with minimal complications. This technique also allows associated labral injuries and acetabular fractures to be treated through the same approach.

Description: The procedure is performed with use of a conventional Kocher-Langenbeck exposure with the patient in the lateral position. Read More

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Femoral stem fractures after primary and revision hip replacements: A single-center experience.

Jt Dis Relat Surg 2020 ;31(3):557-563

İstanbul Metin Sabancı Baltalimanı Kemik Hastalıkları Eğitim ve Araştırma Hastanesi Ortopedi ve Travmatoloji Kliniği, 34335 Beşiktaş, İstanbul, Türkiye.

Objectives: This study aims to present our experience in the management of fractured femoral stems after primary and revision hip replacements by evaluating the clinical and radiographic characteristics and determining the effectiveness of the extraction methods.

Patients And Methods: A total of 15 patients (5 males, 10 females; mean age 65.9 years; range, 49 to 87 years) who underwent revision hip replacement due to a fractured femoral stem between January 2005 and December 2019 were included in this retrospective study. Read More

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February 2021

Reverse augmentation technique in hip revision arthroplasty: a new strategy for the management of acetabular reconstruction.

J Orthop Surg Res 2020 Sep 10;15(1):396. Epub 2020 Sep 10.

Clinic for Orthopedics, Auguste-Viktoria Clinic, Ruhr University Bochum, Am Kokturkanal 2, 32545, Bad Oeynhausen, Germany.

Background: The principle of acetabular total hip revision (THR) is based on acetabular reconstruction and restoration of the center of rotation. The use of augmentation in high cranial acetabular defects combined with a cementless revision shell was studied sufficiently. This study aimed to report a case with the use of an augment inside a cementless revision shell as a reverse augmentation technique. Read More

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September 2020

Clinical guidelines for rehabilitation of the severely atrophic maxilla using extended-length subcrestal angulated implants and modified trans-sinus nasal protocol: A case report.

Int J Oral Implantol (Berl) 2020 ;13(3):291-298

Aims: Immediate fixed full-arch implant-supported prosthetic rehabilitation of the severely atrophic maxilla is a challenging treatment modality with favourable patient interest. The delivery of the treatment is challenging due to the difficulty in providing adequate posterior implant positioning with high primary stability in the absence of alveolar bone distal to the maxillary lateral incisors. Current trends in posterior implant placement and immediate loading include the placement of zygomatic implants or distally tilted implants placed anterior to the sinus cavity. Read More

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September 2020

Teeth angulations after class II treatment with the Jones Jig followed by fixed appliances: A retrospective panoramic analysis.

Int Orthod 2020 Sep 1;18(3):436-442. Epub 2020 Aug 1.

Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil.

Objective: The purpose of this study was to compare the maxillary mesiodistal dental angulations of Class II malocclusion patients treated with the Jones Jig, followed by fixed appliances, with normal values of a historical control group, on panoramic radiographs.

Material And Methods: The sample comprised 80 panoramic radiographs of 40 patients divided into two groups. Eligibility criteria included patients with predominantly dental Class II malocclusion; the presence of all teeth up to the second molars and no previous orthodontic treatment. Read More

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September 2020

Mandibular implant-supported fixed complete dental prostheses on implants with ultrashort and standard length: A pilot treatment.

J Prosthet Dent 2020 Jul 28. Epub 2020 Jul 28.

Full Professor, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.

Edentulous patients may be restored with complete-arch implant-supported fixed complete dental prostheses (IFCDPs) on angled distal implants or on parallel implants distributed equally across the mandible to increase the area of support. A treatment is presented to introduce the clinical concept of providing edentulous patients with an implant-supported fixed complete dental prosthesison parallel tissue-level implants in the mandible with standard length implants interforaminally and ultrashort implants distally. A structured prosthetic approach was used for the tooth arrangement with a modified workflow as per the Biofunctional Prosthetic System adapted for static computer-aided implant surgery (s-CAIS) and computer-aided design and computer-aided manufacturing (CAD-CAM) of the screw-retained implant-supported fixed complete dental prosthesis. Read More

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Comparative Finite Element Analysis of Short Implants with Different Treatment Approaches in the Atrophic Mandible.

Int J Oral Maxillofac Implants 2020 Jul/Aug;35(4):e69-e76

Purpose: This three-dimensional finite element analysis study aimed to compare the stresses transmitted to short, tilted, and vertical implants used in different configurations and to the surrounding peri-implant bone in the atrophic mandible.

Materials And Methods: A three-dimensional model of an atrophic mandible was made using customized computer software. Four models including short, tilted, and vertical implants were constructed with and without cantilever extension. Read More

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