Patellofemoral Joint Pain

Patellofemoral joint pain, also known as anterior knee pain, is a prevalent disorder affecting the front of the knee as well as the part that surrounds the patella (kneecap). This pain normally occurs due to irritation between the kneecap and the femur (thighbone) at the patellofemoral joint. Common causes of this condition involve activities that put pressure on the knee, like running, climbing stairs, squatting or sitting for long periods.

Symptoms

• Aching or sharp pain felt at the front of the knee or the back of the kneecap.
• Discomfort that worsens with activities involving knee bending like climbing stairs, squatting, or prolonged sitting (often referred to as the “theatre sign”).
• A sensation of tightness or trouble moving the knee, particularly after long periods of inactivity.
• A grinding or cracking feeling during the knee movement.

Causes and Risk Factors

Factors that can contribute to patellofemoral joint pain include:

• Overuse: Activities such as jumping, running, and squatting that put a lot of strain on the knee joint over time can cause pain and irritation.
• Muscle imbalance: Pain can result from changes in the patella’s tracking caused by weakness or stiffness in the hamstrings, quadriceps, or hip muscles.
• Poor alignment: Pain can result from uneven stress on the joint caused by the patella’s misalignment in the femoral groove.
• Trauma or injury: Inflammation and subsequent patellofemoral joint discomfort may result from direct trauma to the patella or nearby structures.
• Biomechanical problems: Unusual gait patterns, flat feet, or inappropriate footwear can all lead to more strain on the knee joint.

Diagnosis

At The Joint Pain Clinic, we provide diagnostic ultrasound scans to precisely assess patellofemoral joint pain. This non-invasive imaging technique allows us to examine the knee joint as well as visualize the femur, patella, and nearby structures to detect signs of inflammation, injury, or abnormalities.

Ultrasound are used to identify conditions like tendonitis, cartilage damage, or misalignment. This ensures an accurate diagnosis and helps in developing a tailored treatment plan.

Treating and Managing Patellofemoral Joint Pain

Patellofemoral joint pain treatment aims to relieve pain, improve functionality, and address underlying causes so as to avoid recurrence. Depending on severity, treatment ranges from nonsurgical options to more advanced strategies. They include:

Activity adjustment:

Cutting back or adjusting activities that worsen symptoms—like squatting, running or stair climbing—is usually the first approach. Low-impact workouts such as swimming or cycling are helpful in maintaining fitness while minimizing knee strain.

Physiotherapy & strengthening exercises:

A tailored rehabilitation program guided by a physiotherapist is important for recovery. Crucial focus areas involve:

• Quadriceps strengthening: Aims to strengthen the quadriceps, mainly the vastus medialis obliquus (VMO), to enhance kneecap tracking and stability.
• Hip strengthening: Strengthen the hip abductors and exterior rotators to improve alignment and reduce excess strain on the patellofemoral joint.
• Stretching: Regularly stretching tight muscles—including the hamstrings, quadriceps, and iliotibial band—to enhance flexibility and lessen pressure on the patella.

Biomechanical correction:

It’s important to address biomechanical problems such as flat feet or improper footwear. Orthotics or supportive shoe pads can help correct foot alignment, reducing unnecessary tension on the knee joint.

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