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Patellar Instability Treatment Options

Patellar instability is a challenging condition that can significantly impact an individual’s ability to perform daily activities and participate in sports. It occurs when the patella, or kneecap, does not stay properly aligned within the trochlear groove of the femur, leading to subluxation (partial dislocation) or full dislocation. As an orthopedic sports medicine specialist in New England, Dr. Connor Ziegler provides expert care for individuals dealing with this condition, offering both non-surgical and surgical treatment options tailored to each patient’s needs.

Non-surgical treatments are often the first line of management for patients with mild to moderate patellar instability and for those recovering from an initial dislocation. These treatments focus on pain relief, restoring stability, and preventing further episodes of instability.

  • Activity modification and rest – Patients are advised to avoid activities that place excessive strain on the knee joint, particularly those involving repetitive knee bending or twisting motions. Resting the knee allows inflamed tissues to heal and reduces the risk of recurrent instability.
  • Physical therapy – Physical therapy is a cornerstone of nonsurgical treatment. A customized rehabilitation program strengthens the quadriceps, hamstrings, and hip muscles, which play a crucial role in stabilizing the patella. Particular attention is given to the vastus medialis obliquus (VMO), a muscle that helps guide the patella into proper alignment during knee movement. In addition to strength training, physical therapy often incorporates:
    • Flexibility exercises to reduce tightness in the surrounding tissues.
    • Proprioception training to improve the knee’s stability and prevent misalignment during physical activity.
  • Bracing and Taping – A patellar stabilizing brace or kinesiology taping may be used to provide additional support to the knee during movement. These aids help guide the patella within the trochlear groove and reduce the likelihood of dislocation or subluxation.
  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) – To manage pain and inflammation, NSAIDs such as ibuprofen or naproxen can be prescribed. These medications are particularly helpful during the acute phase following a patellar dislocation.

When non-surgical options fail to provide relief, and in cases of recurrent dislocations, significant structural abnormalities, or associated cartilage damage, surgical intervention may be necessary. Dr. Ziegler uses advanced techniques to correct the underlying causes of patellar instability while minimizing downtime for recovery.

Medial Patellofemoral Ligament (MPFL) Reconstruction

The MPFL is a critical ligament that stabilizes the patella and prevents lateral dislocation. In cases where the MPFL is damaged or insufficient, reconstruction may be required. This procedure involves using a graft (commonly from the patient’s hamstring tendon) to reconstruct the ligament and restore stability. MPFL reconstruction has a high success rate and is often recommended for patients with recurrent dislocations.

Trochleoplasty

Treatment for patients with a shallow or abnormally shaped trochlear groove, can be very challenging. Trochleoplasty may be performed to prevent recurrent dislocations and to improve knee stability, and to permit patients to return to sports and activities. This procedure reshapes the trochlear groove to better accommodate the patella, reducing the risk of dislocation. Trochleoplasty is an advanced procedure that is reserved for the most severe cases of patellar instability. While this surgery is less common, it is highly effective for addressing specific anatomical abnormalities.

Tibial Tubercle Osteotomy (TTO)

In patients with malalignment of the patella, a tibial tubercle osteotomy may be necessary. This procedure involves realigning the tibial tubercle (where the patellar tendon attaches) to improve the patella’s alignment and tracking and improve pain. It is used to treat patients with chronic knee pain.

Arthroscopic Lateral Release

Lateral release is a surgical procedure to realign the kneecap by cutting the tight connective tissues that pull the patella out of alignment. This procedure involves allows the patella to track more naturally within the trochlear groove. Lateral release is often combined with other procedures, such as MPFL reconstruction, for optimal results.

Cartilage Restoration Procedures

In cases where recurrent instability has caused significant damage to the articular cartilage of the patella or trochlea, cartilage restoration procedures may be performed. Options include microfracture, osteochondral grafting, or autologous chondrocyte implantation (ACI). These procedures aim to repair or regenerate damaged cartilage, preserving joint function and reducing the risk of arthritis.

The recovery process following patellar instability treatment varies depending on the severity of the condition and the type of intervention performed. Dr. Ziegler emphasizes a comprehensive rehabilitation program to ensure optimal outcomes, whether the treatment is surgical or non-surgical.

  • Post-Surgical Recovery: Patients undergoing surgery typically require a period of immobilization followed by gradual rehabilitation to restore strength, range of motion, and stability. Full recovery may take several months, depending on the complexity of the procedure.
  • Physical Therapy: As with nonsurgical treatment, physical therapy is integral to recovery. Specific exercises focus on improving muscle balance, proprioception, and knee control.
  • Return to Activity: Most patients can return to sports or other physical activities after completing their rehabilitation program. Dr. Ziegler works closely with each patient to determine the appropriate timeline for resuming activities, ensuring the knee is fully stable and functional.

Every case of patellar instability is unique, requiring a personalized approach to treatment. Dr. Connor Ziegler is dedicated to providing individualized care, combining his expertise in sports medicine with the latest advancements in orthopedic techniques. Whether through non-surgical methods or surgical intervention, his goal is to help patients regain stability, reduce pain, and return to their active lifestyles with confidence.

If you’re experiencing symptoms of patellar instability, contact Dr. Ziegler’s office today to schedule a consultation and begin your journey to recovery.


References

  • Tan SSH, Law GW, Kim SS, Sethi E, Lim AKS, Hui JHP. Trochleoplasty Provides Good Outcomes for Recurrent Patellofemoral Dislocations with No Clear Superiority across Different Techniques. J Clin Med. 2024 May 20;13(10):3009. doi: 10.3390/jcm13103009. PMID: 38792556; PMCID: PMC11122057.
  • https://www.sportsmed.org/membership/sports-medicine-update/summer-2023/tibial-tubercle-osteotomy-continues-to-evolve
  • https://www.sciencedirect.com/topics/medicine-and-dentistry/lateral-release#:~:text=Lateral%20release%20is%20a%20procedure,compared%20with%20MPFL%20repaired%20knees.
At a Glance

Dr. Connor Ziegler

  • Board-certified, fellowship-trained
  • Author of numerous publications
  • Recipient of Excellence in Research Award
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