iBet uBet web content aggregator. Adding the entire web to your favor.
iBet uBet web content aggregator. Adding the entire web to your favor.



Link to original content: https://pubmed.ncbi.nlm.nih.gov/22560001/
Mechanisms of proximal hamstring rupture in a non-athlete healthy middle-aged female - PubMed Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2012 Sep;194(5):489-93.
doi: 10.1016/j.aanat.2012.02.016. Epub 2012 Apr 5.

Mechanisms of proximal hamstring rupture in a non-athlete healthy middle-aged female

Sebastian Cotofana  1 , Bernhard Tillman, Thomas Pufe, Selim Lehrer, Dorothee Watz, Monika Zangl, Harald Modlmayr, Ernest Knöckl, Hans-Joachim Mahn, Werner Wambach
Affiliations
Case Reports

Mechanisms of proximal hamstring rupture in a non-athlete healthy middle-aged female

Sebastian Cotofana et al. Ann Anat. 2012 Sep.

Abstract

Purpose: To present an explicatory pathophysiological model for the rare clinical case of a total proximal hamstring rupture for the first time in the literature.

Methods: A non-athletic healthy female (49 years) experienced a complete rupture of the right conjoint tendon of the biceps femoris (long head) and semitendinosus muscle while slipping down a lawn-covered slope (eccentric hip flexion and knee extension during stance phase of gait after heel-strike). A hamstring rupture was diagnosed by clinical examination and confirmed by magnet resonance imaging (MRI). Surgical reattachment of the conjoint tendon to the ischial tuberosity was performed. One year after surgery, she experienced no pain or functional impairment.

Results: Histological analysis and immune-histochemical staining (vascular endothelial growth factor - receptor 2) of a biopsy taken intra-operatively revealed signs of fibroblast proliferation and vasculoneogenesis with absence of inflammatory changes indicating that repairing mechanisms and tissue remodeling had been taking place.

Conclusion: This case report provides evidence for the hypothesis that micro-injuries induce repairing mechanisms and thus tissue remodeling which leads to consecutive tissue weakening and mechanical failure during a non-adequate trauma. Micro-injuries can occur during leisure activities and remain clinically invisible until rupture.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

Publication types

LinkOut - more resources