Lapiplasty FAQs

Lapiplasty is an advanced surgical technique specifically designed for the correction of hallux valgus (bunion) deformities. Unlike traditional bunion surgeries, which primarily address the bony bump or realign the bones in one or two dimensions, Lapiplasty provides a comprehensive, three-dimensional correction. This procedure aims to correct the underlying deformity by addressing the joint’s rotation, angulation, and translation, offering a more lasting solution and improving overall foot function.

Functional Anatomy

The hallux valgus deformity involves an abnormal angling of the big toe, causing it to shift towards the second toe, while the first metatarsal bone moves outward. This results in the characteristic bunion bump on the side of the foot. The condition is caused by a combination of abnormal bone structure, soft tissue imbalances, and joint instability. Traditional bunion surgery typically addresses only one aspect of this deformity, such as shaving off the bony prominence or correcting angulation. However, Lapiplasty aims to realign the entire joint in all three planes: rotation, angulation, and translation.

Biomechanics or Physiology

The big toe joint (first metatarsophalangeal joint) is critical for pushing off during walking and running. A bunion deformity disrupts the natural alignment of this joint, leading to poor weight distribution, increased pressure, pain, and decreased function. The Lapiplasty procedure corrects the deformity in three dimensions, restoring the joint’s normal alignment and improving function by enhancing stability and balance during movement.

Common Variants and Anomalies

Hallux valgus can range from mild to severe. Mild cases may only involve a slight deviation of the big toe, while more severe cases may result in significant deformity, leading to difficulty walking, wearing shoes, and performing daily activities. In severe cases, the bunion can cause additional issues like hammer toes, calluses, or joint degeneration, which can complicate treatment. Lapiplasty is most beneficial in moderate to severe cases, particularly when traditional surgery has failed or when a more permanent correction is desired.

Clinical Relevance

Lapiplasty addresses the root cause of the bunion deformity by correcting it in all three planes, offering a more permanent solution compared to traditional procedures. Traditional surgeries, such as osteotomies, often result in bunion recurrence, especially in severe cases. By stabilizing the joint and realigning the bones in rotation, angulation, and translation, Lapiplasty reduces the likelihood of recurrence and improves long-term foot function, allowing patients to return to normal activities with less pain.

Imaging Overview

Preoperative imaging is essential for planning the Lapiplasty procedure. X-rays are typically used to assess the degree of bunion deformity, joint alignment, and the presence of any associated conditions, such as sesamoiditis or arthritis in the first metatarsophalangeal joint. A CT scan may be used in some cases to assess the exact 3D alignment of the bones before surgery. Postoperative imaging helps to verify the correction of the deformity and monitor the healing process.

Associated Conditions

Bunions are often associated with other foot deformities or conditions, including:

  • Hammer toes and claw toes
  • Flatfoot or pes planus, which can exacerbate bunion formation
  • Arthritis in the metatarsophalangeal joint
  • Hypermobile foot structures, especially in patients with conditions such as Down syndrome or Ehlers-Danlos syndrome

Lapiplasty is particularly effective in complex cases where multiple deformities or soft tissue imbalances are present.

Surgical or Diagnostic Applications

Lapiplasty involves a specialized approach to bunion correction, which includes:

  1. Making small incisions near the affected joint.
  2. Realigning the bones of the big toe joint in all three planes using advanced surgical instruments.
  3. Fixing the bones into their corrected position using screws and plates.
    This comprehensive approach ensures that the joint is not only realigned but also stabilized, reducing the risk of recurrence and improving long-term function.

Prevention and Maintenance

After surgery, maintaining proper foot care and rehabilitation is key to ensuring a successful outcome. This includes:

  • Wearing protective footwear to support the corrected joint.
  • Using orthotics to maintain proper alignment and prevent strain on the foot.
  • Physical therapy to strengthen the foot muscles and improve flexibility.
  • Avoiding high-impact activities that may strain the foot before full recovery.

Research Spotlight

A recent study described the successful use of a modified Lapiplasty (three-dimensional correction surgery) for a young woman with Down syndrome, congenital heart disease, and severe hallux valgus (bunion) deformity. The authors emphasized that patients with Down syndrome often experience ligamentous laxity and flatfoot, making traditional bunion surgeries less effective.

By fusing the first tarsometatarsal joint and correcting the deformity in all three planes — rotation, angulation, and translation — surgeons achieved stable alignment and pain relief. The patient recovered well, regaining her mobility without recurrence. The study concluded that triplanar correction via modified Lapidus arthrodesis provides durable correction and is especially beneficial in complex cases involving hypermobility and flatfoot deformities.

This case reinforces the clinical advantages of Lapiplasty, as outlined above: its ability to correct the bunion deformity comprehensively and reduce recurrence by stabilizing the root joint structure. (“Study on 3D bunion correction in a patient with Down syndrome – see PubMed.“)

Summary and Key Takeaways

  • Lapiplasty offers a comprehensive, three-dimensional correction for bunions, improving long-term outcomes by addressing the underlying joint deformity.
  • It provides a permanent solution to bunions by stabilizing the joint and reducing the risk of recurrence.
  • The procedure has been associated with rapid recoveryless pain, and improved foot function.
  • It is particularly beneficial for patients with severe bunion deformitieshypermobile feet, or complex foot conditions.
  • Postoperative care and rehabilitation are critical to ensuring the success of Lapiplasty and minimizing complications.

Do you have more questions?

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foot-and-ankle Treatments

Dr Mo Athar md

A seasoned orthopedic surgeon and foot and ankle specialist, Dr. Mohammad Athar welcomes patients at the offices of Complete Orthopedics in Queens / Long Island. Fellowship trained in both hip and knee reconstruction, Dr. Athar has extensive expertise in both total hip replacements and total knee replacements for arthritis of the hip and knee, respectively. As an orthopedic surgeon, he also performs surgery to treat meniscal tears, cartilage injuries, and fractures. He is certified for robotics assisted hip and knee replacements, and well versed in cutting-edge cartilage replacement techniques.

 

In addition, Dr. Athar is a fellowship-trained foot and ankle specialist, which has allowed him to accrue a vast experience in foot and ankle surgery, including ankle replacement, new cartilage replacement techniques, and minimally invasive foot surgery. In this role, he performs surgery to treat ankle arthritis, foot deformity, bunions, diabetic foot complications, toe deformity, and fractures of the lower extremities. Dr. Athar is adept at non-surgical treatment of musculoskeletal conditions in the upper and lower extremities such as braces, medication, orthotics, or injections to treat the above-mentioned conditions.
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