A Biomechanical Study of an Alternative Internal Fixation Method for Transverse Patella Fractures

Orthopedics ◽  
2018 ◽  
Vol 41 (5) ◽  
pp. e643-e648
Author(s):  
Shuai Han ◽  
Dongdong Li ◽  
Peixun Zhang ◽  
Xiaofeng Yin ◽  
Yuhui Kou ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Biomechanical Study ◽  
Fixation Method ◽  
Patella Fractures

Functional Outcome of “Reconstruction Patellar Plate” in the treatment of patella fractures

2021 ◽  
Vol 15 (8) ◽  
pp. 1965-1968
Author(s):  
Abhishek Kumar Thakur ◽  
Khizer Ghalib ◽  
Muhammad Siddique Hamid ◽  
M. Junaid Amjad ◽  
Ali Hassan ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Functional Outcome ◽  
Open Reduction ◽  
Fixation Method ◽  
Patellar Fracture ◽  
Knee Score ◽  
Patella Fractures ◽  
Special Surgery ◽  
Patellar Plate ◽  
Hospital For Special Surgery

Background: The patellar fractures treatment has changed by enhancements in both an improved understanding of patellar function and fracture fixation techniques. The goals of operative fixation include repair of extensor mechanism, restoration of articular congruity, secure fixation and early movements. In this Study Reconstruction patellar plate was introduced in the management of patellar fracture. Aim: To determine the Functional outcome of fixation method of patella fractures by Open Reduction and Internal Fixation with Reconstruction Patellar Plate. Methods: This Prospective study was performed at Department of Orthopaedic Surgery at Lahore General Hospital for a period of 12 months after the approval Research Board of University of health Sciences, Lahore. Non probability purposive sampling method was used to induct 30 patients (who met the inclusive Criteria) underwent reconstruction patellar plate for the treatment of patella fracture. The patients were followed in outpatient department at 4 weeks and 16 weeks. Variables mentioned in Modified Hospital for Special Surgery Knee Score were recorded and Knee score was calculated and graded at 16 weeks. Results: In this study, overall mean age was 25.26 ± 5.02 years. There were 19 (63%) male and 11 (37%) female subjects. The mean of Modified Hospital for Special Surgery Knee Score (MHSSKS) was 84.90±8.87. In this study, there were 12(40%) patients with excellent functional outcome, 14 (46.67%) patients with good functional outcome and 4(13.34%) patients with fair functional outcome. There was no patient with poor functional outcome. Conclusion: Reconstruction Patellar Plate fixation method of patella fractures by Open Reduction and Internal Fixation produced good Functional outcome, which can be familiarized as an alternate to tension band method for the treatment of transverse patellar fracture. Keywords: fracture, patellar, reconstruction patellar plate, tension Band wiring

A Biomechanical Evaluation of Three Forms of Internal Fixation Used in Ankle Arthrodesis

1994 ◽  
Vol 15 (6) ◽  
pp. 297-300 ◽  
Author(s):  
Michael P. Dohm ◽  
James B. Benjamin ◽  
Jeffrey Harrison ◽  
John A. Szivek
Keyword(s):  
Internal Fixation ◽  
Plate Fixation ◽  
Ankle Arthrodesis ◽  
Biomechanical Study ◽  
The Other ◽  
Fixation Failure ◽  
Plate Group ◽  
Biomechanical Evaluation ◽  
The Stability ◽  
Fibular Strut

A biomechanical study was undertaken to evaluate the relative stability of three types of internal fixation used for ankle arthrodesis. Crossed screw fixation, RAF fibular strut fixation, and T-plate fixation were tested in 30 cadaver ankles using an MTS machine. T-plate fixation consistantly provided the stiffest construct when compared with the other types of fixation. Failure occurred by distraction of bony surfaces, posterior to the plane of fixation, in the crossed screw and RAF groups. In contrast, failure in the T-plate group occurred through compression of bone anterior to the midcoronal plane of the tibia. Although the stability of fixation is only one factor in determining the success or failure of ankle arthrodesis, the results of this study would support T-plate fixation over the other forms tested.

A novel crossed rod configuration incorporating translaminar screws for occipitocervical internal fixation: an in vitro biomechanical study

2011 ◽  
Vol 11 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Josue P. Gabriel ◽  
Aditya M. Muzumdar ◽  
Saif Khalil ◽  
Aditya Ingalhalikar
Keyword(s):  
Internal Fixation ◽  
Biomechanical Study ◽  
Translaminar Screws

A novel internal fixation method for open book injuries of the pubic symphysis— A biomechanical analysis

2020 ◽  
Vol 77 ◽  
pp. 105009 ◽  
Author(s):  
Tobias Fritz ◽  
Laura Mettelsiefen ◽  
Friedemann Strobel ◽  
Benedikt J. Braun ◽  
Steven C. Herath ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Pubic Symphysis ◽  
Biomechanical Analysis ◽  
Fixation Method ◽  
Open Book

Novel techniques demonstrate superior fixation of simple transverse patella fractures - A biomechanical study

Injury ◽  
2020 ◽  
Vol 51 (6) ◽  
pp. 1288-1293 ◽  
Author(s):  
Jonathan Lenihan ◽  
Sonia Ramos-Pascual ◽  
Pavlos Silvestros ◽  
Philip Beak ◽  
Anthony W Miles ◽  
...  
Keyword(s):  
Biomechanical Study ◽  
Patella Fractures

Canine Lumbar Spinal Internal Fixation Techniques A Comparative Biomechanical Study

1986 ◽  
Vol 15 (2) ◽  
pp. 191-198 ◽  
Author(s):  
MARY C. WALTER ◽  
GAIL K. SMITH ◽  
CHARLES D. NEWTON
Keyword(s):  
Internal Fixation ◽  
Biomechanical Study ◽  
Fixation Techniques ◽  
Lumbar Spinal

Comparison of Two Fixation Methods of Oblique Lesser Metatarsal Osteotomies: A Biomechanical Study

1995 ◽  
Vol 16 (7) ◽  
pp. 437-439 ◽  
Author(s):  
Mark P. Slovenkai ◽  
Daniel Linehan ◽  
Linda McGrady ◽  
Tae-Hong Lim ◽  
Gerald F. Harris ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Screw Fixation ◽  
Material Testing ◽  
Biomechanical Study ◽  
Testing System ◽  
Human Cadaver ◽  
Kirschner Wires ◽  
Fixation Methods ◽  
Single Screw ◽  
Fresh Frozen

Two methods of internal fixation of oblique lesser metatarsal osteotomies were compared biomechanically using fresh-frozen human cadaver bones. Osteotomies were made obliquely through the metatarsal shafts and fixed with either crossed Kirschner wires or a single AO screw using the lag technique. The specimens were then fixed at their proximal end and loaded to failure using an axial torsion material testing system (MTS, Minneapolis, MN). Load displacement curves were obtained and the stiffness of the constructs was determined. Single-screw fixation was found to be significantly stiffer than the crossed wire configuration ( P < .01). Single-screw fixation resulted in a stiffness of 211.2 ± 111.7 N/cm (mean ± SD), while stiffness of the crossed wire configuration averaged 56.9 ± 25.1 N/cm.

Ankle spanning external fixator with limited internal fixation for distal tibial extra-articular fractures

2017 ◽  
Vol 5 (10) ◽  
pp. 4355
Author(s):  
Siddharth Goel ◽  
Abhay Elhence
Keyword(s):  
Soft Tissue ◽  
Internal Fixation ◽  
External Fixation ◽  
External Fixator ◽  
Tibial Fractures ◽  
Fixation Method ◽  
Ankle Pain ◽  
Distal Tibial Fractures ◽  
Tract Infections

Background: Fractures of the distal tibia are among the most difficult fractures to treat. The short distal segment presents difficulty in choosing the appropriate fixation method. The greatest challenge lies in the relatively tight soft tissue around the ankle. As a result, it has been a recent interest in treating these fractures with external fixation and limited internal fixation. The external stable fixation methods used are tubular or ring fixators, with or without immobilising the ankle. This minimally invasive nature of the surgery can avoid catastrophic wound complications like dehiscence, implant exposure and infection.Methods: 18 patients with extra-articular distal tibial fractures (AO Type 43A) were treated with the technique of ankle spanning external fixation. Lag screws or K-wires were supplemented for limited internal fixation when required. Fibula was stabilised in all cases. Intra- articular and Compound fractures were excluded. In addition to union at fracture site, ankle pain and motion was noted in each follow-up.Results: The mean follow-up was 25 months. Of the 18 patients included all but one fractures united with an average healing time of 16 to 18 weeks. Ankle pain and motion was graded according to Mazur modified by Teeny and Wiss clinical scoring system. 15 of them had excellent or good results, 2 had fair results. One patient had poor result. Five pin tract infections occurred. 17 patients had no evidence of osteoarthritis after completing follow up of at least 2 years.Conclusions: Distal tibial fractures are complex injuries, not only regarding the bony component, but also in terms of the management of the soft tissue problem. Ankle Spanning External Fixator with Limited Internal fixation is a relatively simple and cost-effective method for treating these fractures, achieving union and also maintaining ankle function.

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