Expertly reviewed by Oren I. Feder, MD, Board Certified Orthopaedic Surgeon, Adult Hip and Knee Reconstruction Specialist at Somers Orthopaedic Surgery and Sports Medicine Group (Somers)
Many people describe an unsettling feeling like “My knee keeps giving out.” That feeling can change how you move through the day. It can make stairs feel harder, walking feel less steady, and activities you enjoy feel out of reach.
A knee that feels unstable does not always mean surgery is needed. In some cases, symptoms improve with time or non-surgical care. If the feeling keeps coming back, it may point to an issue inside the joint, such as arthritis or changes in the cartilage. Learn some common reasons a knee may feel unstable, symptoms to watch for, and when it may be helpful to have the knee evaluated.
When a knee gives out, it may feel like the joint cannot support your weight. Some people notice it suddenly. Others feel a gradual loss of confidence over weeks or months. Knee instability is a symptom, not a diagnosis and the goal is to understand what is causing it.
In adults over 45, knee instability is often linked to degenerative joint disease, including osteoarthritis. As cartilage wears down, the knee may become painful, stiff, or swollen. These changes can affect how the joint moves and how stable it feels.
Meniscus problems are common, especially with age and everyday wear and tear. Many people think a meniscus tear means surgery, but many tears can be treated without urgent surgery. The right next step depends on symptoms, function, and overall joint health.
A prior knee injury can affect stability years later. Ligaments may stretch or weaken over time, which can change how the knee responds during movement.
Muscle weakness or coordination issues around the hip and knee can also contribute to buckling. An exam can help connect what you feel to what the joint is doing.
It is common to notice more than one symptom at a time, such as:
If symptoms keep returning, they may be related to progressive arthritis or ongoing joint changes.
Many people believe that an MRI is always the first step. In many cases, an X ray is a practical starting point when arthritis is suspected. X rays can show joint space changes and alignment patterns that help guide the conversation.
Some people search for “knee MRI scan centers with same day appointments nearby” because they want fast answers. Quick imaging can feel reassuring, but the most useful test is the one that matches the symptoms and exam findings. An orthopaedic provider should help assess which imaging is most appropriate for you based on your symptoms.
No. Many patients can begin with non operative options such as physical therapy, activity changes, bracing, or injections, depending on the cause and goals.
Surgery may be considered when arthritis is advanced and conservative options are no longer providing meaningful relief. For some patients, that discussion includes knee replacement surgery, but it is typically part of a larger decision making process.
Knee instability may be worth evaluating when it keeps happening, especially if there is swelling, persistent pain, or concern about balance and safety.
An orthopaedic visit typically includes a focused exam and imaging such as X rays when appropriate. Many patients find it helpful to review the images together. Seeing what is happening inside the knee can make the plan feel clearer and more collaborative.
Meniscus tears can cause pain, swelling, clicking in the knee, or a feeling of instability. Many meniscus tears can be managed without surgery, depending on symptoms and overall joint health.
Progressive arthritis can worsen gradually. People may notice more stiffness, swelling, and limits with walking or stairs over time.
Not always. Imaging choices depend on symptoms and exam findings. X rays are commonly used when arthritis is suspected, while MRI may be used in specific situations.
After a major injury, urgent evaluation may be needed for severe pain, sudden swelling, inability to bear weight, or a joint that looks misshapen. A focused evaluation can help identify whether symptoms are related to arthritis, a meniscus issue, or another cause, and then talk through options that fit your goals.
Dr. Oren I. Feder is a board-certified orthopaedic surgeon at Somers Orthopaedics specializing in adult hip and knee care, including joint replacement and non-surgical treatment options. He focuses on helping patients understand their condition and choose care that fits their symptoms, goals, and stage of arthritis. He sees patients at our locations in Danbury, Connecticut, and Newburgh, New York.
To learn more or request an appointment with Dr. Feder, call us at 845-278-8400, or request an appointment.
