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Knee Pain

Knee Pain

What Is Knee Pain?

Knee pain is a common complaint that affects people of all ages, lifestyles, and activity levels. It refers to discomfort, soreness, or pain in or around the knee joint, which can result from a variety of causes, including acute injuries, chronic conditions, and degenerative diseases.

The knee is a complex joint responsible for supporting body weight and enabling activities like walking, running, jumping, and bending, making it particularly susceptible to strain and injury. As knee pain can significantly impact mobility and quality of life, timely medical attention is key for proper diagnosis and treatment.

Common Accompanying Symptoms of Knee Pain

Knee pain often presents with other symptoms. These may include:

  • Swelling and Stiffness: Inflammation is a typical response to knee injuries or conditions, leading to swelling and restricted movement.
  • Redness and Warmth: Infection or inflammation within the knee joint may cause localized redness and warmth.
  • Weakness or Instability: A weakened knee may feel like it could "give way" during physical activity.
  • Popping or Crunching Sounds: Mechanical knee issues, such as cartilage damage or joint instability, can produce audible noises during movement.
  • Inability to Fully Straighten the Knee: Limited range of motion is often associated with severe injury or arthritis.
  • Locking or Catching Sensation: Conditions like meniscus tears can cause the knee to become temporarily immobile.

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What Causes Knee Pain?

Knee pain can arise from several causes, broadly categorized as acute injuries, chronic overuse conditions, and degenerative or medical conditions. Common ones include:

  1. Acute Injuries
    • Ligament Injuries: Torn anterior cruciate ligament (ACL), medial collateral ligament (MCL), or posterior cruciate ligament (PCL) often occur during sports or high-impact activities.
    • Meniscus Tears: These are caused by forceful twisting motions and often occur alongside ligament injuries.
    • Fractures: Trauma from falls or accidents can cause fractures in the patella or other knee bones.
    • Dislocations: The kneecap or joint may become displaced due to trauma.
  2. Chronic Overuse Conditions
    • Patellar Tendinitis: Also known as jumper's knee, it arises from repetitive stress on the knee tendon.
    • Iliotibial Band Syndrome: Overuse in activities like running can irritate the band of tissue running from the hip to the shin.
    • Bursitis: Inflammation of the fluid-filled sacs (bursae) around the knee joint.
  3. Degenerative and Medical Conditions
    • Osteoarthritis: This is a wear-and-tear condition that results in cartilage degradation.
    • Rheumatoid Arthritis: This is an autoimmune disease that inflames the knee joint lining.

How Is Knee Pain Diagnosed?

A thorough diagnosis of knee pain involves a combination of clinical evaluation, imaging studies, and sometimes laboratory tests. The process typically includes:

  1. Medical History : Your knee doctor will ask about the nature of your pain, how it began, and any associated symptoms or prior injuries.
  2. Physical Examination : Assessments may include palpation, joint stability tests, range-of-motion evaluations, and observation of gait.
  3. Imaging Studies :
    • X-rays reveal bone abnormalities such as fractures or osteoarthritis.
    • MRI scans provide detailed images of soft tissue, such as ligaments, cartilage, and tendons.
    • Ultrasounds are used to evaluate fluid buildup or soft tissue injuries.
  4. Laboratory Tests : If an infection or inflammatory condition is suspected, blood tests or joint fluid analysis may be conducted.

How Is Knee Pain Treated?

Treatment for knee pain varies depending on its cause and severity. It generally falls into two categories: non-surgical and surgical interventions.

Non-Surgical Treatments:

  1. Rest and Activity Modification : Reducing activities that exacerbate pain can allow healing. Using a brace or crutches may be recommended.
  2. Physiotherapy : Tailored exercise programmes can strengthen surrounding muscles, improve range of motion, and enhance joint stability.
  3. Medications :
    • Over-the-counter pain relievers or prescription anti-inflammatory drugs for chronic conditions or severe inflammation.
  4. Injections :
    • Corticosteroid Injections: Reduces inflammation in arthritic or inflamed knees.
    • Hyaluronic Acid Injections: Lubricates the joint in cases of osteoarthritis.
    • Platelet-Rich Plasma (PRP): May promote tissue healing.
  5. Weight Management : For individuals with osteoarthritis, weight loss can significantly reduce knee strain and discomfort.
  6. Assistive Devices : Orthotic shoe inserts, braces, or compression sleeves may alleviate stress on the knee joint.

Surgical Treatments:

  1. Arthroscopy: A minimally invasive procedure used to repair ligaments, remove damaged cartilage, or flush out debris.
  2. Partial Knee Replacement: For localised arthritis or damage, only the affected section of the knee is replaced.
  3. Total Knee Replacement: The entire knee joint is replaced with an artificial one in cases of severe arthritis or damage.
  4. Ligament Reconstruction: Torn ligaments, such as the ACL, can be reconstructed using grafts.
  5. Osteotomy: Reshaping bones to relieve pressure on specific areas of the knee joint.

Tips for Preventing Knee Pain

Preventative measures can help reduce your risk of knee pain or re-injury:

  1. Warm-Up and Cool Down: Start your workouts with a warm-up and end with stretches to prepare and relax muscles.
  2. Strengthen Supporting Muscles: Incorporate exercises that build strength in the quadriceps, hamstrings, and calves.
  3. Practice Good Technique: Learn proper form for sports and activities to avoid unnecessary strain on your knees.
  4. Wear the Right Gear: Use well-fitted footwear and protective equipment appropriate to your sport or activity.
  5. Maintain Healthy Weight: Reducing excess weight minimizes undue stress on the knees.
  6. Avoid Overuse: Incorporate rest days and diversify your activities to avoid repetitive strain injuries.
  7. Listen to Your Body: Stop activities that cause discomfort and seek advice from a healthcare professional if symptoms persist.

Whether you are managing a minor injury or recovering from surgery, our team of specialists is here to provide comprehensive care tailored to your individual needs.

Frequently Asked Questions

  • When should I see a doctor for knee pain?

    If your knee pain is severe, persistent, or accompanied by swelling, instability, inability to bear weight, or a popping sensation, you should seek medical attention promptly.

  • How do I know if my knee pain is due to arthritis or an injury?

    Arthritis-related knee pain is usually gradual and worsens over time and is often accompanied by stiffness. Injury-related pain, on the other hand, tends to occur suddenly after physical activity or trauma and may involve swelling, bruising, or difficulty moving the knee.

  • Can knee pain be a sign of a more serious condition?

    Yes, knee pain can sometimes indicate conditions like infections, gout, or even referred pain from hip or spine problems. A proper evaluation is necessary to determine the underlying cause.

  • Is surgery always required for knee pain?

    Not always. Many mild knee conditions can be managed with non-surgical treatments like physiotherapy, medication, or injections. Surgery is usually considered for severe cases, structural damage, or when conservative treatments fail.

  • How does weight affect knee pain?

    Excess weight increases stress on the knee joints, accelerating wear and tear, particularly in conditions like osteoarthritis. Losing even a small amount of weight can significantly reduce knee pain and improve mobility.

  • Why does my knee hurt more at night or after resting?

    Knee pain that worsens at night or after prolonged rest may be due to arthritis, inflammation, or poor circulation. Stiffness upon waking or after sitting for long periods is common in conditions like osteoarthritis.

Experiencing Knee Pain from an ACL Injury?

By absorbing lots of weight and shock on a daily basis, the knee is prone to injury, with a common one being an ACL injury. Aside from medications and physiotherapy, the international Orthopaedic Clinic offers ACL surgery to repair damaged tissues and restore strength and mobility back to the knee.

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