11,385 results match your criteria fixation pins


Effect of Bidirectional Insertion of External Skeletal Fixation Pins on Axial Pullout Strength in Canine Cadaveric Bone.

Vet Comp Orthop Traumatol 2021 Sep 21. Epub 2021 Sep 21.

Rocky Vista University, Parker, Colorado, United States.

Objective:  The aim of this study was to evaluate the effect of bidirectional insertion on axial pullout strength of tapered run out (TRO), traditional negative profile (TNP) and positive profile (PP) pins.

Study Design:  Cadaveric adult canine tibiae were harvested. Tapered run out pins (Group 1) were inserted unidirectionally to the desired position; bidirectionally past the desired position, then withdrawn to the desired position (Group 2); and bidirectionally as described for Group 2, repeated twice (Group 3). Read More

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September 2021

Treatment of B1 Distal Periprosthetic Femur Fractures.

Orthop Clin North Am 2021 Oct 29;52(4):335-346. Epub 2021 Jul 29.

Department of Orthopaedics, University of British Columbia, Vancouver, British Columbia, Canada.

The burden of periprosthetic distal femoral fractures is projected to increase accordingly with the increase in total knee arthroplasties (TKAs) performed globally in the future. Less invasive plating and intramedullary (IM) nailing techniques still seem to provide similar outcomes based on current literature. Double-plating and combination techniques may prove to be beneficial in the future pending further large-scale studies but currently have not demonstrated superiority over single plating and IM nailing based on current evidence. Read More

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October 2021

Use of an Intramedullary Locking Nail for the Treatment of Patella Fractures.

Acta Chir Orthop Traumatol Cech 2021 ;88(4):260-265

ATORG - Aschaffenburg Trauma and Orthopaedic Research Group, Center of Trauma & Orthopaedic Surgery, Sports Medicine, Aschaffenburg-Alzenau, Aschaffenburg, Germany.

PURPOSE OF THE STUDY Treatment of patella fractures has always been difficult; especially in older patients. The aim of this study was to investigate the XS nail in the treatment of patella fractures. MATERIAL AND METHODS 49 fractures could be registered and reevaluated with a standardized questionnaire. Read More

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September 2021

Use of a Motorized Intramedullary Bone Transport Nail for Trauma: Tips, Tricks, Corticotomy Techniques, and Rate and Rhythm.

J Orthop Trauma 2021 Oct;35(Suppl 4):S31-S38

Department of Orthopaedic Surgery, Jackson Memorial Hospital, University of Miami Miller School of Medicine, Miami, FL.

Summary: The introduction of internal magnetic nails (IMNs) for bone lengthening and bone transport has given us exciting new tools with which to treat segmental bone loss. Distraction osteogenesis has a long record of success in recreating even large segments of bone, but the availability of IMNs now offers the possibility of performing distraction osteogenesis without the drawbacks of external fixation. However, there are aspects of treatment with IMNs that are critical to understand to achieve success and minimize complications. Read More

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October 2021

Segmental Bone Defects and the History of Bone Transport.

J Orthop Trauma 2021 Oct;35(Suppl 4):S1-S7

The Royal Children's Hospital Melbourne, The University of Melbourne, Melbourne, Australia.

Summary: This article describes the etiology of segmental bone defects and reviews the options of care, past and present. A brief description of distraction osteogenesis and how the Ilizarov method was used to treat bone defects with circular external fixation leading to the latest method of transport with motorized internal lengthening nails is presented. Read More

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October 2021

Epidemiology, classification, treatment, and mortality of adult femoral neck and basicervical fractures: an observational study of 40,049 fractures from the Swedish Fracture Register.

J Orthop Surg Res 2021 Sep 15;16(1):561. Epub 2021 Sep 15.

Department of Surgical and Perioperative Sciences, Orthopaedics, Umeå University, Umeå, Sweden.

Background: Although femoral neck fractures (FNFs) are common in orthopedic departments, optimal treatment methods remain in dispute. There are few large nationwide studies, including basicervical FNFs (bFNFs), on epidemiology, treatment, and mortality. This nationwide study aims to describe the epidemiology, fracture classification, current treatment regimens, and mortality of undisplaced and minimally displaced (Garden I-II, uFNF), displaced (Garden III-IV, dFNF) and bFNFs in adults. Read More

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September 2021

[Morphological analysis of coronal femoral intertrochanteric fracture and its effect on reduction and internal fixation].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Sep;35(9):1093-1099

Department of Orthopedics, Luodian Hospital, Baoshan District, Shanghai, 201908, P.R.China.

Objective: To investigate the morphology of coronal femoral intertrochanteric fracture and its effect on reduction and internal fixation.

Methods: The clinical and imaging data of 46 patients with femoral intertrochanteric fracture who met the selection criteria between August 2017 and October 2018 were reviewed. There were 15 males and 31 females; the age ranged from 62 to 91 years, with an average of 72. Read More

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September 2021

[Research on the classification criteria of femoral intertrochanteric fractures based on irreducibility or not].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Sep;35(9):1086-1092

Department of Traumatic Orthopedics, Affiliated Hospital of Jining Medical University, Jining Shandong, 272029, P.R.China.

Objective: To formulate the classification criteria of femoral intertrochanteric fractures based on irreducibility or not in order to predict the difficulty of fracture recovery.

Methods: A clinical data of 244 patients with closed femoral intertrochanteric fractures admitted between January 2017 and March 2020 was retrospectively analyzed. There were 116 males and 128 females with an average age of 77. Read More

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September 2021

Numerical evaluation of the mechanical properties of a novel expandable intramedullary nailing: A new alternative to standard interlocking nailing.

Injury 2021 Aug 27. Epub 2021 Aug 27.

Department of Mechanical Engineering, TOBB University of Economics and Technology, 06560 Ankara, Turkey.

Introduction: There has been a great effort in preventing the disadvantages of distal locking in intramedullary nailing to date. From this scope, a novel expandable nail fixation eliminating distal locking screws has been designed. The primary aim of this numerical parametric study is to investigate mechanical behavior of expandable nail fixation on the fractured femur model under different contact parameters which are effective in maintaining the nail position and to specify the appropriate values of these contact parameters for a safe fixation. Read More

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Locking Compression Plate as an External Fixator for the Treatment of Tibia Infected Bone Defects.

Z Orthop Unfall 2021 Sep 8. Epub 2021 Sep 8.

Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China.

Purpose: This study was designed to observe the medium-term efficacy of an induced membrane technique combined with a locking compression plate as an external fixator for the treatment of tibia infected bone defects.

Methods: Patients with a tibial infection were admitted to our department between January 2013 and November 2014. All patients were treated with the induced membrane technique. Read More

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September 2021

The Bisaccia and Meccariello technique in pediatric femoral shaft fractures with intramedullary titanium nail osteosynthesis linked external-fixator (IOLE): validity and reliability.

Acta Biomed 2021 09 2;92(4):e2021249. Epub 2021 Sep 2.

7 Department of Orthopedics and Traumatology, AORN San Pio Hospital, Benevento, Italy.

Background: Over the last 20 years, the incidence of pediatric femoral shaft fractures was increased, due to changes in the children's daily activities. The healing times are different according to the chosen treatment and to other factors such as age, type of fracture, the involvement of the soft tissues, and concomitance with other injuries. The Bisaccia and Meccariello technique ( Intramedullary titanium nail Osteosynthesis Linked External-fixator -IOLE) was born to prevent rotationally and lengthening malunion or nonunion in the treatment of pediatric femoral shaft fractures. Read More

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September 2021

International recognition of the Ilizarov bone reconstruction techniques: Current practice and research (dedicated to 100 birthday of G. A. Ilizarov).

World J Orthop 2021 Aug 18;12(8):515-533. Epub 2021 Aug 18.

Department of Traumatology and Orthopedics, Ural State Medical University, Ekaterinburg 620109, Russia.

The Ilizarov method is one of the current methods used in bone reconstruction. It originated in the middle of the past century and comprises a number of bone reconstruction techniques executed with a ring external fixator developed by Ilizarov GA. Its main merits are viable new bone formation through distraction osteogenesis, high union rates and functional use of the limb throughout the course of treatment. Read More

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[Complex extraction of Küntscher nails. Trephines and other surgical strategies].

Acta Ortop Mex 2021 Jan-Feb;35(1):75-79

Hospital Universitario del Tajo. Aranjuez. España.

Introduction: Removing an intact or broken intramedullary nail can be a real surgical challenge. In clinical cases many methods have been described, and there are many tools to allow their extraction. In this article, the experience in one of them is presented: the use of trephines. Read More

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September 2021

Indigenous Proximal Femoral Nails and Their Novel Complications.

Cureus 2021 Jul 29;13(7):e16729. Epub 2021 Jul 29.

Orthopaedics, Post Graduate Institute of Medical Education & Research, Chandigarh, IND.

Pertrochanteric fractures are one of the commonest fractures in the geriatric age group. Management of these fractures has been revolutionized by the use of proximal femoral nails (PFN), with a screw or a helical blade for fixation in the femoral head. Multiple complications like Z-effect, screw cut out, head penetration, varus collapse, and so on are known with poor technique in proximal femoral nails antirotation (PFNA). Read More

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Combined Microwave Ablation and Osteosynthesis for Long Bone Metastases.

Medicina (Kaunas) 2021 Aug 16;57(8). Epub 2021 Aug 16.

Department of Radiology, Policlinico Universitario, 09121 Cagliari, Italy.

The purpose of this study was to evaluate the feasibility, safety and efficacy of microwave ablation (MWA) in combination with open surgery nail positioning for the treatment of fractures or impending fractures of long bone metastases. Eleven patients (four men, seven women) with painful bone metastases of the humerus, femur or tibia with non-displaced fractures (one case) or impending fractures (10 cases) underwent open MWA in combination with osteosynthesis by locked nail positioning. Pain intensity was measured using a VAS score before and after treatment. Read More

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Treatment of Intertrochanteric Femur Fractures with Hip Arthroplasty in Older Patients: A Narrative Review of Indications and Outcomes.

Medicina (Kaunas) 2021 Jul 27;57(8). Epub 2021 Jul 27.

Department of Orthopaedics and Traumatology, University of Basel, Petersgraben 4, 4031 Basel, Switzerland.

Intertrochanteric femur fractures are common in older patients and often have a significant impact on disability. The treatment aims to achieve a rapid return to the prior functional level with a low rate of complications and mortality. Surgical management by internal fixation is the mainstay of treatment for most of these fractures. Read More

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A novel dynamic electromagnetic tracking navigation system for distal locking of intramedullary nails.

Comput Methods Programs Biomed 2021 Sep 11;209:106326. Epub 2021 Aug 11.

School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China; Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai, China. Electronic address:

Background: The accurate distal locking of intramedullary (IM) nails is a clinical challenge for surgeons. Although many navigation systems have been developed, a real-time guide method with free radiation exposure, better user convenience, and high cost performance has not been proposed.

Methods: This paper aims to develop an electromagnetic navigation system named TianXuan-MDTS that provides surgeons with a proven surgical solution. Read More

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September 2021

[Clinical study of modified one stage posterior approach total en block spondylectomy and spinal reconstruction in the treatment of invasive thoracic vascular tumor].

Zhongguo Gu Shang 2021 Aug;34(8):759-63

The Second Department of Orthopaedics, Gansu Provincial People's Hospital, Lanzhou 730000, Gansu, China.

Objective: To explore the surgical method and safety of modified one stage posterior approach total en block spondylectomy combined with pedicle screw fixation and titanium mesh reconstruction for the treatment of invasive thoracic vascular tumor.

Methods: The clinical data of 12 patients with invasive thoracic vasculay tumor from December 2012 to May 2015 was retrospectively analyzed. There were 8 males and 4 females, aged from 40 to 62 years with an average of 51. Read More

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[Analysis of risk factors of perioperative blood transfusion in the treatment of femoral intertrochanteric fracture with proximal femoral nail antirotation].

Zhongguo Gu Shang 2021 Aug;34(8):755-8

Department of Traumatology and Orthopaedics, Yi jishan Hospital, Wannan Medical College, Wuhu 241000, Anhui, China.

Objective: To explore the influencing factors of perioperative blood transfusion in the treatment of elderly femoral intertrochanteric fractures with proximal femoral nail antirotation(PFNA).

Methods: The clinical data of 109 elderly patients with intertrochanteric fractures who received PFNA treatment from July 2018 to January 2020 were retrospectively analyzed. Both pelvic hip X-rays and CT plain scans were performed before surgery. Read More

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Humerus Lengthening: A Comparison of the Internal Lengthening Nail to External Fixation.

HSS J 2021 Jul 4;17(2):207-212. Epub 2021 Mar 4.

Limb Lengthening and Complex Reconstruction Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA.

: Magnetic internal lengthening nails (MILNs) have been used for humeral lengthening to avoid complications associated with external fixation. : We compared the 1-year Disabilities of the Arm, Shoulder and Hand (DASH) score, adjacent joint range of motion (ROM), bone healing index (BHI), length achieved, distraction rate, and complications when lengthening the humerus using MILN vs using external fixation. : We conducted a retrospective cohort study of 18 patients (22 humeri) from January 2001 to March 2020 divided into 2 groups, the MILN group (7 patients, 7 humeri) and the mono-lateral fixator group (11 patients, 15 humeri). Read More

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Casting versus flexible intramedullary nailing in displaced forearm shaft fractures in children aged 7-12 years: a study protocol for a randomised controlled trial.

BMJ Open 2021 08 20;11(8):e048248. Epub 2021 Aug 20.

Department of Orthopedics and Traumatology, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland.

Introduction: The forearm is the most common fracture location in children, with an increasing incidence. Displaced forearm shaft fractures have traditionally been treated with closed reduction and cast immobilisation. Diaphyseal fractures in children have poor remodelling capacity. Read More

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The Effect of Reducing the Bone to Cast Distance in an Equine Transfixation Pin Cast: An Ex Vivo Biomechanical Study.

Vet Comp Orthop Traumatol 2021 Aug 20. Epub 2021 Aug 20.

Equine Department, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.

Objective:  The aim of this study was to evaluate the effect of reducing the bone to cast distance on the resistance of the pin to cyclic loading in equine transfixation pin casts.

Study Design:  Eleven pairs of cadaveric equine third metacarpal bones were prepared and one 6.3/8. Read More

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Radiographs of 366 removed limb lengthening nails reveal differences in bone abnormalities between different nail types.

Bone Joint J 2021 Aug 20:1-5. Epub 2021 Aug 20.

Aalborg University Hospital, Aalborg, Denmark.

Aims: Limb lengthening nails have largely replaced external fixation in limb lengthening and reconstructive surgery. However, the adverse events and high prevalence of radiological changes recently noted with the STRYDE lengthening nail have raised concerns about the use of internal lengthening nails. The aim of this study was to compare the prevalence of radiological bone abnormalities between STRYDE, PRECICE, and FITBONE nails prior to nail removal. Read More

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Management of Salter-Harris II distal femur fractures - what is the state of practice? A survey of Pediatric Orthopaedic Society of North America membership.

J Pediatr Orthop B 2021 Aug 17. Epub 2021 Aug 17.

Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA Department of Orthopaedic Surgery, The Chaim Sheba Medical Center at Tel Hashomer Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Appropriate treatment of Salter-Harris (SH) II distal femoral physeal fractures is crucial due to risks of growth arrest and angular deformity. Low incidence renders sufficiently powered, prospective research difficult. This study aimed to assess the current state of management of these fractures on the basis of the Pediatric Orthopaedic Society of North America (POSNA) membership experience. Read More

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Interlocking Fixation in Fassier-Duval Rods: Performance and Success Factors.

J Pediatr Orthop 2021 Sep;41(8):525-529

Department of Orthopaedics, Johns Hopkins University Hospital, Baltimore, MD.

Introduction: Pediatric patients with osteogenesis imperfecta (OI) can be treated with intramedullary Fassier-Duval rod (FDR) systems for limb deformity or recurrent fractures. Single-interlocking pins can improve epiphyseal fixation, but there is a paucity of literature examining incidence of rod migration or pin backout long-term. The purpose of this study is to quantify rates of rod migration and pin backout in OI patients treated with single-interlocking FDRs. Read More

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September 2021

Description of and complications associated with reinforced, free-form external skeletal fixation for treatment of appendicular fractures in cats: 46 cases (2010-2019).

J Am Vet Med Assoc 2021 Sep;259(5):510-517

Objective: To describe a modified technique for reinforced, free-form external skeletal fixation (rFF-ESF) of appendicular fractures in cats and identify factors associated with development of complications.

Animals: 46 cats with fractures repaired with rFF-ESF at Angell Animal Medical Center between 2010 and 2019.

Procedures: Medical records were reviewed for information on signalment, affected bone, fracture location and orientation, degree of comminution, severity (open vs closed), fixator type, number of fixation pins, use of an intramedullary pin (yes vs no), surgeon experience (staff surgeon vs surgical resident), anesthesia time, surgery time, perioperative antimicrobial administration, concurrent surgical procedures, intraoperative complications, postoperative alignment, whether fixator destabilization was performed, and time to complete fixator removal. Read More

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September 2021

Fixation of Transparent Bone Pins with Photocuring Biocomposites.

ACS Biomater Sci Eng 2021 09 13;7(9):4463-4473. Epub 2021 Aug 13.

School of Materials Science and Engineering (MSE), Nanyang Technological University (NTU), 639798 Singapore.

Bone fractures are in need of rapid fixation methods, but the current strategies are limited to metal pins and screws, which necessitate secondary surgeries upon removal. New techniques are sought to avoid surgical revisions, while maintaining or improving the fixation speed. Herein, a method of bone fixation is proposed with transparent biopolymers anchored in place via light-activated biocomposites based on expanding CaproGlu bioadhesives. Read More

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September 2021

[Effectiveness of proximal femoral nail anti-rotation and cerclage fixation for complicated femoral subtrochanteric fractures].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Aug;35(8):956-960

Department of Orthopedic Surgery, the Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou Sichuan, 646000, P.R.China.

Objective: To investigate the effectiveness of proximal femoral nail anti-rotation (PFNA) and cerclage fixation for complicated femoral subtrochanteric fractures.

Methods: A clinical data of 74 patients with complicated femoral subtrochanteric fractures, who were admitted between March 2016 and March 2019 and met the criteria, was retrospectively analyzed. Among them, 39 patients were treated with limited open reduction and PFNA combined with cerclage fixation (observation group) and 35 patients were treated with closed reduction and PFNA fixation (control group). Read More

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[Reasons of the guide pin eccentricity of helical blade during proximal femoral nail anti-rotation internal fixation for femoral intertrochanteric fractures].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Aug;35(8):950-955

Department of Orthopedics, Tongji Hospital of Tongji University, Shanghai, 200065, P.R.China.

Objective: To analyze the reasons and the influence of internal fixation about the guide pin eccentricity of helical blade during proximal femoral nail anti-rotation (PFNA) internal fixation for femoral intertrochanteric fractures.

Methods: A retrospective analysis of the intraoperative imaging data of 175 patients with femoral intertrochanteric fractures, who underwent closed reduction and PFNA internal fixation between January 2018 and January 2020, was performed. There were 76 males and 99 females with an average age of 79. Read More

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New Linked-Wire-Type External Fixator (the Ichi-Fixator System) for Metacarpal Fractures: Case Series and Literature Review.

J Hand Surg Asian Pac Vol 2021 Sep;26(3):403-409

Department of Orthopedics Surgery, Juntendo University Nerima Hospital, Tokyo, Japan.

External fixator is an effective treatment option in the comminuted or unstable metacarpal fractures. The new linked-wire type of external fixator (the Ichi-Fixator System) developed for hand and wrist fractures enables fine adjustment of the fixation under fluoroscopic inspection through small screws inside the fixator fitted externally. This technique is designed to reinforce the stability and rigidity of conventional percutaneous Kirchner wire fixation. Read More

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September 2021