Knee conditions

Knee Pain

Knee Pain can reflect several different structures and mechanisms. The location and quality of symptoms help organize the evaluation, but they do not establish one diagnosis or treatment path.

Knee joint structures and genicular nerve pathways shown as distinct clinical targets.
Clinical illustration.

Quick orientation

What to know first

The symptom region is a starting point, not a diagnosis.

History and examination determine which anatomy and tests matter.

Urgent, neurologic, infectious, vascular, traumatic, and systemic causes stay visible until reasonably excluded.

What we may consider next

How we may treat this

Treatments that may be considered after an evaluation. Which option, if any, fits depends on the cause of your pain, your examination, prior treatment and your health history; your physician will explain the benefits, limits and risks.

Establish first

Diagnostic or prognostic steps help clarify the pain generator or whether a later option fits.

Diagnostic / prognostic step

Genicular Nerve Block

Diagnostic block for selected chronic knee arthritis pain; a good response does not guarantee RFA success

Options that may be considered

These are options, not required steps. Selection depends on the diagnosis and individual review.

Treatment option

Knee Joint Injection

For selected knee arthritis or joint inflammation; steroid relief is usually temporary

Treatment option

Platelet-Rich Plasma (PRP)

May be considered for selected knee arthritis; results and preparation vary, guidelines disagree, and PRP is not shown to regrow cartilage

May come later

A later procedure is considered only when evaluation and the response to earlier steps support it.

Later treatment option

Genicular Radiofrequency Ablation

For selected chronic knee arthritis pain after a positive diagnostic block; supported by randomized trials, but results vary and insurance coverage differs

Choose the guide that matches your question

Explore the specific guides.

Use these links to learn about related symptoms, conditions, and treatments. An individual evaluation is still needed to determine a diagnosis or whether a treatment may be appropriate.

Clinical guide

Knee Osteoarthritis

Knee osteoarthritis symptoms, evaluation, conservative care, injections, and appropriate procedure pathways.

Open this guide

Symptom guide

Leg Pain

Broad leg-pain orientation across spinal, joint, vascular, muscular, and peripheral-nerve causes.

Open this guide

Symptoms are clues, not a diagnosis

What knee pain can feel like

Symptoms help define a syndrome, but they do not confirm which structure is responsible. Distribution, timing, aggravating factors, neurologic findings, function, and important alternatives all shape the evaluation.

Location, radiation, timing, quality, sensory change, weakness, stiffness, swelling, activity, position, sleep, and function help define the pattern.

Similar symptoms may arise from a joint, tendon, muscle, spine, peripheral nerve, circulation, or systemic condition.

Imaging and test abnormalities require clinical correlation and may not identify the symptom source.

Relevant anatomy

What causes knee pain

The region includes joints, muscles, tendons, nerves, blood vessels, and possible referral pathways. Their symptom territories overlap, so the examination and selective testing must answer a defined clinical question.

History and examination first

How knee pain is diagnosed

Evaluation begins with the patient question, safety screen, history, and focused examination. Testing is selected only when it can clarify a competing diagnosis, guide treatment, or change referral urgency.

Major peripheral nerve pathways of the lower limb from pelvis to foot.
Clinical illustration.

Keep the differential open

Conditions that can feel like knee pain

Keep common and serious alternatives open until the evidence supports a narrower conclusion.

Local joint, tendon, muscle, ligament, bursa, bone, or soft-tissue disorders

Spinal referral, nerve-root, plexus, or peripheral-nerve disorders

Traumatic, infectious, inflammatory, vascular, metabolic, medication-related, or oncologic causes

Core care

Non-surgical care for knee pain

Procedure discussions belong inside a broader plan that protects neurologic function and daily activity.

Education, pacing, sleep and activity strategies matched to the diagnosis

Rehabilitation focused on mobility, strength, tolerance, and function when safe

Medication and comorbidity review with the appropriate clinician

Reassessment when symptoms, neurologic findings, function, or response changes

Evidence at a glance

Evidence at a glance

Evidence strength, comparator, follow-up, and selection affect interpretation.

Guidelines support question-specific imaging rather than routine testing for every presentation.

Clinical correlation is required because structural findings may be present without being the symptom source.

Treatment evidence applies to defined diagnoses and cannot be generalized to undifferentiated regional pain.

Decision quality matters

Evidence, limits, and who it may fit

A listed option does not establish candidacy. Diagnosis, anatomy, prior care, risk, alternatives, goals, and evidence must align.

Referral and urgent signs

When knee pain needs urgent care

These findings can change the timing or destination of care.

A visibly deformed joint, major trauma, inability to bear weight or use the limb, or rapidly increasing swelling

A hot red joint, fever, spreading redness, open wound, or concern for infection

New limb weakness, loss of sensation, a cold or pale limb, marked calf swelling, chest symptoms, or another vascular or neurologic emergency

The visit

Your first visit for knee pain

The visit should narrow the diagnosis, identify safety and referral needs, review imaging and prior care in context, and choose the next useful decision. The clinician should explain uncertainty and what a treatment is expected to add before it is performed.

Define the location, timing, triggers, sensory features, functional effect, prior injury, and prior care

Examine the relevant joint, spine, muscles, nerves, circulation, gait, strength, sensation, and reflexes as appropriate

Use imaging, electrodiagnostic testing, laboratory work, or referral only when it answers a clinical question

Choose education, rehabilitation, medical care, further diagnostic work, a selected procedure discussion, or referral based on the working diagnosis

Common questions

Knee Pain FAQ

These answers are educational and cannot determine an individual diagnosis or treatment plan.

When should knee pain be checked by a specialist?

When pain lasts for weeks, keeps returning, limits walking or stairs, or has not improved with exercise therapy and medicines. Seek emergency care for a hot, swollen joint with fever, inability to bear weight after a significant injury, or new calf swelling with chest pain or shortness of breath. New, unexplained calf swelling also needs prompt medical assessment.

What are common causes of knee pain in adults?

Osteoarthritis, tendon problems, meniscus or ligament injuries and kneecap (patellofemoral) pain are common. Pain can also be referred from the hip or lower back, which is why the examination looks beyond the knee.

Are there options besides knee surgery?

Exercise therapy, weight management and medicines can help many patients. For selected patients, a knee joint injection, a genicular nerve block or genicular radiofrequency ablation may be discussed after an evaluation.

Where can I be seen for knee pain?

New-patient visits are available at the Allen office, Monday to Friday, and at the Wylie office on Tuesdays. Ultrasound-guided knee joint injections and genicular nerve blocks are available at both offices; genicular radiofrequency ablation is performed in Allen.

Diagnosis before procedure

See a pain specialist for knee pain in Allen, TX

A focused evaluation can clarify the diagnosis, important alternatives, and the next step that fits the clinical picture.