Glossary
Ligament rupture
Quick answer
A ligament rupture is a complete tear in which the ligament's fibres are separated through their full thickness, so it no longer holds the bones together. Whether it needs surgery depends on which ligament ruptured and how you use your knee, says Doha knee surgeon Dr. Pablo Gelber at Aman Hospital.
What the report is telling you
Radiologists may write rupture, complete tear, full-thickness tear or discontinuity. All mean the same thing: the ligament is torn right through. A partial tear, by contrast, leaves some fibres intact.
The report usually names the ligament, such as the ACL, PCL, MCL or LCL, and may mention related findings such as bone bruising, meniscus tears or a Segond fracture.
Does every rupture need surgery?
No. The MCL has a good blood supply and many complete MCL ruptures heal in a brace with physiotherapy. The ACL rarely heals back to its original strength once ruptured, so active people who twist and pivot, such as padel and football players, are often advised to consider reconstruction.
Some people with a ruptured ACL do well with rehabilitation alone if they avoid pivoting sport and the knee does not give way. Several ruptured ligaments together, as after a knee dislocation, usually need surgery.
What happens next
The MRI is read alongside an examination, because how loose the knee feels matters as much as the picture. The decision then weighs your age, sport, work and any meniscus or cartilage damage.
Frequently asked questions
Can a ruptured ligament heal by itself?
Some can, particularly the MCL. A ruptured ACL usually does not regain its original strength, although some people manage well without surgery if they avoid twisting sports.
Is a rupture an emergency?
Usually not, but get seen promptly. Urgent review is needed if the knee looks deformed, the foot is cold or numb, or several ligaments are injured.
Related
