Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

26 March 2018 : Clinical Research  

Limited Dynamic Hip Screw for Treatment of Intertrochanteric Fractures: A Biomechanical Study

Chunlei ZhangABCFG, Bin ZhangBF, Qirong DongAG, Dawei GeBEF

DOI: 10.12659/MSM.906351

Med Sci Monit 2018; 24: CLR1769-1775


BACKGROUND: The aim of this article is to introduce a novel technique of limited dynamic hip screw (LDHS) in the treatment of intertrochanteric fractures and to evaluate its biomechanical effects.

MATERIAL AND METHODS: Based on the principle of providing both dynamic and static pressure to stabilize the fracture, we improved the dynamic hip screw (DHS) and designed the LDHS. Six fresh cadavers were collected and intertrochanteric fracture models were established, including Evan’s type I fracture (n=3) and type II (n=3). We used the left-to-right comparison in this study. LDHS technique was performed on the left femoral head of each cadaver (LDHS group: n=6), while DHS was performed on the right side (DHS group: n=6). After fixation by either LDHS or DHS, compressive strength, rigidity, shear stress and strain, torsional properties, and ultimate loads were measured and compared in both groups.

RESULTS: Under the 1200 N pressure, compressive strength, rigidity, shear stress and strain, and ultimate loads of LDHS were better than those of DHS in the 2 groups. All differences were statistically significant. Although LDHS enhanced the torsional properties, there was no significant difference.

CONCLUSIONS: Our study demonstrates that the biomechanical effects of LDHS are superior than those of DHS, and there was no screw failure after implantation. Armed with those better properties, LDHS, as a new internal fixation device, may be a good alternative option in the treatment of intertrochanteric fractures.

Keywords: Biomedical Research, Cadaver, Hip Fractures, Internal Fixators

Add Comment 0 Comments


01 April 2024 : Editorial  

Editorial: Forty Years of Waiting for Prevention and Cure of HIV Infection – Ongoing Challenges and Hopes for Vaccine Development and Overcoming Antiretroviral Drug Resistance

Dinah V. Parums

DOI: 10.12659/MSM.944600

Med Sci Monit 2024; 30:e944600


In Press

08 Mar 2024 : Clinical Research  

Evaluation of Foot Structure in Preschool Children Based on Body Mass

Med Sci Monit In Press; DOI: 10.12659/MSM.943765  


15 Apr 2024 : Laboratory Research  

The Role of Copper-Induced M2 Macrophage Polarization in Protecting Cartilage Matrix in Osteoarthritis

Med Sci Monit In Press; DOI: 10.12659/MSM.943738  


07 Mar 2024 : Clinical Research  

Knowledge of and Attitudes Toward Clinical Trials: A Questionnaire-Based Study of 179 Male Third- and Fourt...

Med Sci Monit In Press; DOI: 10.12659/MSM.943468  

08 Mar 2024 : Animal Research  

Modification of Experimental Model of Necrotizing Enterocolitis (NEC) in Rat Pups by Single Exposure to Hyp...

Med Sci Monit In Press; DOI: 10.12659/MSM.943443  

Most Viewed Current Articles

17 Jan 2024 : Review article  

Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron Variant

DOI :10.12659/MSM.942799

Med Sci Monit 2024; 30:e942799


14 Dec 2022 : Clinical Research  

Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase Levels

DOI :10.12659/MSM.937990

Med Sci Monit 2022; 28:e937990


16 May 2023 : Clinical Research  

Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...

DOI :10.12659/MSM.940387

Med Sci Monit 2023; 29:e940387


01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952


Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750