2 doctors weighed in:

Why does my knee go out on me when I walk sometimes?

2 doctors weighed in
Dr. Thomas Deberardino
Orthopedic Surgery

In brief: Pain or instability

Knees can "go out" for a myriad of reasons.
In general, two types of giving out can occur: due to pain and aberrant muscle firing causing "buckling", or ligamentous injury causing mechanical giving way due to the lack of ligamentous constraint. A thorough history and examination by your orthopaedic surgeon will uncover the answer and allow for appropriate treatment.

In brief: Pain or instability

Knees can "go out" for a myriad of reasons.
In general, two types of giving out can occur: due to pain and aberrant muscle firing causing "buckling", or ligamentous injury causing mechanical giving way due to the lack of ligamentous constraint. A thorough history and examination by your orthopaedic surgeon will uncover the answer and allow for appropriate treatment.
Dr. Thomas Deberardino
Dr. Thomas Deberardino
Thank
Dr. Bruce Rothschild
Internal Medicine - Rheumatology

In brief: Instability?pain?

Instability can cause this.
Also pain can cause this, as can a nerve problem. Check with a rheumatologist.

In brief: Instability?pain?

Instability can cause this.
Also pain can cause this, as can a nerve problem. Check with a rheumatologist.
Dr. Bruce Rothschild
Dr. Bruce Rothschild
Thank
Get help from a real doctor now
Dr. Warren Strudwick
Board Certified, Sports Medicine
26 years in practice
490K people helped
Continue
108,000 doctors available
Read more answers from doctors