The iliofemoral ligament is widely considered the strongest ligament in the human body.
Understanding the Iliofemoral Ligament
Located in the hip joint, the iliofemoral ligament connects the ilium (part of the pelvis) to the femur (thigh bone). Its robust structure allows it to withstand significant forces. Studies show it can support a traction force exceeding 350 kg (772 lbs)[^1, ^2, ^3, ^4, ^5, ^6, ^7]. This remarkable strength is crucial for maintaining hip stability and preventing hyperextension. The ligament's Y-shaped configuration further enhances its strength and functionality [^8]. In contrast to other hip ligaments (pubofemoral and ischiofemoral ligaments) which prevent specific movements like abduction and extension, the iliofemoral ligament primarily prevents hyperextension of the hip joint [^1].
Other Strong Ligaments and Tendons
While the iliofemoral ligament holds the title of strongest ligament, it's important to note that other structures are exceptionally strong as well:
- Achilles tendon: Often cited as the strongest tendon in the body, it connects the calf muscles to the heel bone [^9, ^10]. Its thickness and strength are essential for activities requiring powerful plantar flexion (e.g., jumping, running).
- Deltoid ligament: This ankle ligament is considered one of the strongest in the ankle, playing a crucial role in preventing excessive eversion of the foot [^6].
It is crucial to distinguish between ligaments and tendons. Ligaments connect bones to bones, whereas tendons connect muscles to bones. Therefore, comparing the strength of ligaments and tendons is not directly comparable.
[^1]: Physiopedia, Iliofemoral ligament.
[^2]: Wikipedia, Iliofemoral ligament.
[^3]: Byjus, Strongest ligament of human body is.
[^4]: Topr, Strongest ligament of human body is:Ligamentum flavumIliofemoral ...
[^5]: Various sources stating iliofemoral ligament strength exceeding 350kg.
[^6]: PMC, The Anatomy and Mechanisms of Syndesmotic Ankle Sprains
[^7]: Various other online sources supporting the Iliofemoral ligament as the strongest.
[^8]: Topr, Strongest ligament of human body is:Ligamentum flavumIliofemoral ...
[^9]: Cleveland Clinic, Achilles Tendon (Calcaneal Tendon): Function & Anatomy
[^10]: WebMD, Achilles Tendon Injuries (Tear, Rupture) Causes, Symptoms ...
