Archive · 31 Jul 2025
Experts Explain Why Knees May Not Straighten
Sometimes, people have trouble straightening their knees, making it hard to move around.
This can happen for a few reasons.
A piece of torn cartilage might get stuck, like a jammed door.
The kneecap can slip out of place, especially in active teens.
Inflammation in the joint cushions or conditions like arthritis can also cause problems.
It's important to see a doctor if you can't put weight on your leg or have severe pain, as it could be serious.
Inability to straighten knees can be caused by injuries, inflammation, or conditions like arthritis.
A locked knee can result from a meniscus tear, where cartilage gets wedged in the joint.
Knee dislocation occurs when the kneecap dislodges from its groove in the thigh bone.
Bursitis, inflammation of the joint's fluid-filled pads, can also restrict knee movement.
Arthritis, including osteoarthritis and rheumatoid arthritis, may cause pain and limited mobility.
- Who
- People experiencing knee issues.
- What
- Reasons for not being able to straighten one's knees.
- When
- Not specified.
- Where
- Not specified.
- Why
- Due to injury, inflammation, or underlying conditions affecting the knee joint.
Causes
Solutions
Injury vs. Mechanical Blockage
Causes
Injuries like a ligament tear or osteoarthritis.
Solutions
Meniscus tear where torn cartilage gets wedged.
- Conditions Mentioned
- Meniscus tear, Knee dislocation, Bursitis, Arthritis, Arthrofibrosis
- Emergency Care Needed
- If suspect fracture, extreme pain, or inability to bear weight on the leg.
- Knee Dislocation Frequency
- Common, especially in adolescents between 14-18
- Cause of Bursitis
- Repetitive motions, direct impact, underlying conditions