Background: Intramedullary screw fixation is a common method of treating proximal metadiaphyseal fifth metatarsal (ie, Jones) fractures. Fatigue failure is a complication of this fixation. There are many screw designs available, including Jones fracture specific fixation, but the optimal choice of screw design is unknown. The purpose of this study was to compare the fatigue strength of Jones fracture specific screw designs as well as other commonly used screw designs. Our hypothesis was that there would be no difference in fatigue strength for Jones fracture specific screw designs at similar screw diameters.
Methods: A study was performed to determine the fatigue bending strength of 5 different screw designs including Jones fracture specific screw designs at 3 different screw diameters. Six screws of each size and design underwent cyclic fatigue testing, and a median fatigue limit (MFL) was determined for each screw design and size.
Results: The Stryker Asnis JFX solid 4.0-mm, 5.0-mm, and 6.0-mm screws had a higher MFL than all other screws with similar diameter tested (all P < .0001). Both Jones fracture specific screw designs (Stryker Asnis JFX solid screws and Charlotte Carolina Jones screws) had higher MFLs than the other screw designs tested.
Conclusion: This study provides comparative fatigue strength data on larger screw diameters, which have not been previously reported. There was a statistically significant difference in screw fatigue properties at the screw diameters tested.
Clinical Relevance: The clinical significance of this study is that it provides surgeons with fatigue strength data to aid in screw selection for Jones fracture fixation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1177/1071100717746121 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Press-Fit Bone-Anchored Prosthesis for Individuals with Transtibial Amputation.
JBJS Essent Surg Tech
May 2024
Radboud University Medical Center, Nijmegen, The Netherlands.
Background: This video article describes the use of bone-anchored prostheses for patients with transtibial amputations, most often resulting from trauma, infection, or dysvascular disease. Large studies have shown that about half of all patients with a socket-suspended artificial limb experience limited mobility and limited prosthesis use because of socket-related problems. These problems occur at the socket-residual limb interface as a result of a painful and unstable connection, leading to an asymmetrical gait and subsequent pelvic and back pain.
View Article and Find Full Text PDFUtility of minimally invasive percutaneous arthrodesis of the sacroiliac joint for the treatment of low back pain: systematic review of the literature.
Eur Spine J
January 2025
Departamento de Neurociencias, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Facultad de Medicina, Bogotá, Colombia.
Background: The surprising increase observed in recent years in the use of minimally invasive sacroiliac joint arthrodesis techniques as a treatment for low back pain justifies an objective review of this results.
Purpose: carry out a systematic review of the literature to evaluate the clinical results of patients with low back pain treated with percutaneous arthrodesis of the SIJ.
Study Design: Systematic review.
Trochanteric hip fractures treated surgically-outcome in a ten-year cohort of 46,121 patients from the Swedish National Hip Fracture Registry.
OTA Int
March 2025
Department of Orthopedic Surgery, Orebro University Hospital & School of Medical Sciences, Orebro University, Orebro, Sweden.
Objectives: To compare postoperative mortality regarding 2 techniques in the treatment of trochanteric hip fractures (THFs).
Design: Retrospective cohort study.
Setting: National databases.
Can monolithic zirconia frameworks in implant-supported cross-arch prostheses deliver reliable long-term outcomes?
Evid Based Dent
January 2025
Eastman Dental Institute, London, UK.
Design: A retrospective cohort study assessing the mid-to-long-term outcomes and risk factors affecting the prosthetic success and survival of implant-supported cross-arch fixed dental prostheses (IFCDPs) with monolithic zirconia frameworks.
Cohort Selection: Forty-seven patients received a total of 51 cross-arch prostheses (27 maxillary and 24 mandibular prostheses), supported by 302 implants. Comprehensive clinical and radiographic records were available over a follow-up period ranging from 5 to 13 years.
Surveillance of Dual-Mobility Hip Systems: Damage Mode and Clinical Data Analysis.
J Arthroplasty
January 2025
Oakland University William Beaumont School of Medicine, Rochester, MI; Department of Orthopedic Surgery, Corewell Health William Beaumont University Hospital, Royal Oak, MI. Electronic address:
Background: Hip instability following total hip arthroplasty (THA) is among the most common indications for revision surgery. The implantation of dual-mobility (DM) systems, designed to improve stability, continues to rise, and thus, characterizing in vivo implant damage modes is paramount.
Methods: Under an implant retrieval protocol, 51 DM THA systems were analyzed.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!