scholarly journals Thread Delamination in 4.5 mm AO Cannulated Screws

2022 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Christopher D. Murawski ◽  
Rajiv P. Reddy ◽  
Robert T. Tisherman ◽  
Patrick P. Bosch ◽  
Jan S. Grudziak ◽  
...  
Keyword(s):  
Cannulated Screws

Holding Power of Orthopaedic Screws in Bovine Femoral Heads

1993 ◽  
Vol 06 (03) ◽  
pp. 160-162 ◽  
Author(s):  
M. J. Ulm ◽  
D. G. Wilson
Keyword(s):  
Femoral Head ◽  
Cannulated Screws ◽  
Cancellous Screw ◽  
Holding Power ◽  
Cortical Screw ◽  
Femoral Heads ◽  
Cancellous Screws ◽  
Physeal Fractures

SummaryFemoral capital physeal fractures have been successfully repaired using 7.0 mm cannulated screws. The holding power of 7.0 mm cannulated screws was compared to the holding power of 5.5 mm cortical screws and 6.5 mm cancellous screws using paired bovine femoral heads. The 7.0 mm cannulated screw’s holding power was superior to the 6.5 mm cancellous screw and similar to that of the 5.5 mm cortical screw.When placed in the bovine femoral head, 7.0 mm cannulated screws have holding power greater than 6.5 mm cancellous screws and similar to 5.5 mm cortical screws.

Complications Following Tension-Band Fixation of Patellar Fractures with Cannulated Screws Compared with Kirschner Wires

2013 ◽  
Vol 95 (7) ◽  
pp. 653-659 ◽  
Author(s):  
C. Max Hoshino ◽  
Wesley Tran ◽  
John V. Tiberi ◽  
Mary Helen Black ◽  
Bonnie H. Li ◽  
...  
Keyword(s):  
Tension Band ◽  
Cannulated Screws ◽  
Kirschner Wires ◽  
Patellar Fractures

Minimally Invasive Reduction of Intraarticular Calcaneal Fractures With Percutaneous Fixation Using Cannulated Screws Versus Kirschner Wires: A Retrospective Comparative Study

2021 ◽  
pp. 193864002098775
Author(s):  
Ahmed Shams ◽  
Osama Gamal ◽  
Mohamed Kamal Mesregah
Keyword(s):  
Patient Satisfaction ◽  
Minimally Invasive ◽  
Comparative Study ◽  
Operative Time ◽  
Cannulated Screws ◽  
Kirschner Wires ◽  
Calcaneal Fractures ◽  
K Wires ◽  
Retrospective Comparative Study ◽  
Minimally Invasive Reduction

Background Several minimally invasive techniques were developed for management of intraarticular calcaneal fractures. This study aimed to compare the functional and radiological outcomes of 2 minimally invasive reduction and fixation techniques using cannulated screws or Kirschner wires (K-wires) for fixation. Methods This study was a retrospective comparative review of patients with displaced intraarticular calcaneal fractures, who were treated with cannulated screws or K-wires techniques. Clinical and radiological data were collected and compared between both groups. Functional outcomes and patient satisfaction using the Maryland Foot Score (MFS) and the visual analogue scale (VAS) of pain, in addition to the complications, were compared between both groups. Results In total, 70 patients were included in the study: 34 in the cannulated screws group, with a mean age of 35.2 ± 4 years, and 36 in the K-wires groups, with a mean age of 33.4 ± 3 years. The operative time was shorter in the K-wires group (40.5 ± 5.6 minutes) compared to the cannulated screw group (49.5 ± 4.5 minutes), P < .001. There were no statistically significant differences between both groups regarding the radiological parameters, including Bohler’s angle, angle of Gissane, calcaneal width, height, or length. The mean MFS, mean VAS, and complications were not different between the 2 groups. Conclusion Treatment of displaced intraarticular calcaneal fractures with minimally invasive reduction and fixation using either cannulated screws or K-wires can achieve similar excellent functional and radiological outcomes, with high patient satisfaction. The use of K-wires has the advantage of reduced operative time than cannulated screws. Levels of Evidence: Level III: Retrospective comparative study

A comparison of intramedullary cannulated screws versus miniplates for fixation of unstable metacarpal diaphyseal fractures

2021 ◽  
pp. 175319342110215
Author(s):  
Birkan Kibar ◽  
Ali Cavit ◽  
Abdullah Örs
Keyword(s):  
Plate Fixation ◽  
Randomized Study ◽  
Good Alternative ◽  
Active Movement ◽  
Cannulated Screws ◽  
Level Of Evidence ◽  
Visual Analogue Pain ◽  
Plate Group ◽  
Significant Difference ◽  
Diaphyseal Fractures

We carried out a prospective randomized study to compare the clinical and radiological results of metacarpal diaphyseal fractures treated with retrograde intramedullary headless cannulated screws (IHCS) and plates. Fractures were fixed with IHCS in 34 patients (37 metacarpals) and locked miniplates in 35 patients (40 metacarpals). The mean age was 33 years (range 18–61) in the IHCS group and 32 years (range 17–68) in plate group. All patients were followed up for 1 year. All fractures in the IHCS group united but there was one nonunion in the plate group. At final follow-up, there was no significant difference between the groups in total active movement, visual analogue pain score, Disabilities of the Arm, Shoulder, and Hand score and grip strength, although the study was not sufficiently powered to exclude differences with certainty. IHCS is a safe and fast technique that is a good alternative to plate fixation in metacarpal diaphyseal fractures. Level of evidence: I

Use of small cannulated screws for fixation in foot surgery

2000 ◽  
Vol 90 (5) ◽  
pp. 240-246 ◽  
Author(s):  
AE Burns
Keyword(s):  
Effective Means ◽  
Bone Screws ◽  
Cannulated Screws ◽  
Implant Fixation ◽  
Foot Surgery ◽  
Fixation Failure ◽  
Untoward Event ◽  
Patient Noncompliance

Use of cannulated bone screws, as compared with use of traditional bone screws, has been reported to decrease surgical time, allow for more precise screw placement, and reduce sources of error. Cannulation of the smaller-size screws that are routinely used in foot surgery has not been available until the last few years. This article reports on the use of the small cannulated screws manufactured by Alphatec Manufacturing, Inc (Palm Desert, California). The screw sizes available in the Mini Lag Screw System are 2.7, 3.5, and 4.0 mm. A long-term clinical and radiographic prospective evaluation of 70 procedures performed on 49 patients was conducted. The follow-up time for all patients was 2 years. None of the 70 implants fractured, and seven procedures (in seven patients) resulted in some type of implant-fixation failure. All of the fixation failures, however, appeared to be related to an untoward event or patient noncompliance. These smaller cannulated screws proved to be a reliable and effective means of fixation in foot surgery.

216 Fix or Replace: Is Internal Fixation Still A Viable Option in The Elderly with Un-Displaced Intracapsular Femoral Neck Fractures?

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
R Morris ◽  
A Krishna ◽  
H Hamid ◽  
M Chawda ◽  
H Mumtaz
Keyword(s):  
Femoral Neck ◽  
Internal Fixation ◽  
Revision Surgery ◽  
Retrospective Review ◽  
The Elderly ◽  
Femoral Neck Fractures ◽  
Type I ◽  
Cannulated Screws ◽  
Viable Option ◽  
Displaced Femoral Neck Fractures

Abstract Aim The treatment of impacted or un-displaced femoral neck fractures in the elderly osteoporotic patient is still largely debated, with arthroplasty versus internal fixation two surgical options1. Our aim was to retrospectively review patients over the age of 80 with un-displaced intracapsular hip fractures who had undergone internal fixation and assess their rate of mortality and revision surgery. Method We conducted a retrospective review of all patients with femoral neck fractures over a 4-year period between January 2015 to December 2018. We refined this to only patients over the age of 80 with un-displaced intracapsular femoral neck fractures fixed with cannulated screws. We noted their mental and mobility status, their follow-up attendance over 3 years, their mortality and rate of revision surgery. Results There were a total of 1232 femoral neck fractures in a 4-year period. Of these, 37 were &gt;80 with un-displaced intracapsular femoral neck fractures, with 23 fixed with cannulated screws and 14 with a Dynamic Hip Screw. Mean age – 85, M:F (1:4.75). All patients were either Garden Classification Type I or II. 4% had cognitive impairment. All patients were independently mobile. 83% were followed up for 3 years, with 1 patient (4%) undergoing revision surgery 3 years following cannulated screw fixation. The 30-day mortality rate was 5%. Conclusions The treatment choice for un-displaced intracapsular femoral neck fractures in the elderly remains debateable. Our retrospective review shows that the rate of re-operation is low in patients who have undergone fixation with cannulated screws and so this remains a viable option.

Recent Methods of Neck Femur Fixation A Systematic review and meta-analysis

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Ahmed Salem Eid ◽  
Ahmed Mohamed Mohasseb ◽  
Ramy Mohamed Mohamed El-Bahnasy
Keyword(s):  
Systematic Review ◽  
Femoral Head ◽  
Femoral Neck ◽  
High Energy ◽  
Femoral Neck Fractures ◽  
Final Outcome ◽  
Cannulated Screws ◽  
Fixed Angle ◽  
Femur Fractures ◽  
Femoral Head Osteonecrosis

Abstract Background Femoral neck fractures in adults younger than age 50 years are uncommon and often the result of high energy trauma. They account for only 2-3% of all femoral neck fractures. Femoral neck fractures are associated with aging and osteoporosis and can occur after relatively trivial trauma in elderly patients. femoral neck fractures are associated with higher incidences of femoral head osteonecrosis and nonunion. Fixation options include cannulated screws, non parallel cannulated screws, medial augmentation plate, and fixed angle femoral neck fixation implants. A systematic review of literature done to evaluate which technique is better. Methods After literature search thirteen articles were found and were reviewed to evaluate final outcome of fixation of neck femur fractures by cannulated screws, non parallel cannulated screws, medial augmentation plate, and fixed angle femoral neck fixation implants. Results After evaluation of all studies the incidence of nonunion, osteonecrosis of femoral head, implant failure & revesion surgery is lower in comparing Targon plate with multiple cannulated screws while we need further studies for application of non parallel screws and medial plate. Conclusion Targon plate recorded low incidence of complications in the final outcome in comparison with multiple cannulated screw while we need further studies for application of Non parallel screws and medial plate.

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