1 in 4 patients experience medial knee pain due to symptomatic neuromas after knee replacement¹

What is a Neuroma?

The standard approach for a total knee replacement (TKA) procedure requires dissecting through soft tissue around the knee, which may divide some of the small surrounding nerves that provide sensation to the area. The small nerves typically heal on their own, but sometimes their regrowth can become disorganized. This can create a neuroma, a small bundle of nerve tissue that is often very sensitive and painful.2

For patients, a symptomatic neuroma may feel like sharp, burning pain or pinpoint tenderness that radiates from the injured area.

Introducing a New Solution

The allay™ Hydrogel Cap is built on hydrogel technology that has been safely used in more than 5 million patients worldwide³, and is now designed specifically to support nerve healing.

allay™ Hydrogel Cap is fully absorbable and gently forms a cover around the injured nerve. This supports nerve recovery and reduces the risk of neuroma formation.

allay™ Hydrogel Cap remains in place for 8 months, protecting the nerve throughout the critical period of neuroma formation.⁴,

Find Surgeons Near You

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Dr. Dzi-Viet Nguyen

Dzi-Viet Nguyen, DO

Florida Orthopedic Institute
Dr. Dzi-Viet Nguyen is a board-certified orthopedic surgeon with advanced fellowship training in hand and microsurgery. With deep expertise in nerve and tendon injuries, Dr. Nguyen is dedicated to helping patients understand their options and achieve the best possible outcomes.
Schedule a consult: (727) 369-4994

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  1. Suresh R, Buddhiraju A, Suresh V, Dellon AL, Hegde V, Tuffaha SH, Elhelali A. Neuromas and Persistent Postoperative Pain Following Total Knee Arthroplasty. Ann Plast Surg. 2025 Jun 27. doi: 10.1097/SAP.0000000000004426. Epub ahead of print. PMID: 40600805.
  2. Yang H, Dong Y, Wang Z, Lai J, Yao C, Zhou H, Alhaskawi A, Hasan Abdullah Ezzi S, Kota VG, Hasan Abdulla Hasan Abdulla M, Lu H. Traumatic neuromas of peripheral nerves: Diagnosis, management and future perspectives. Front Neurol. 2023 Jan 11;13:1039529. doi: 10.3389/fneur.2022.1039529. PMID: 36712443; PMCID: PMC9875025.
  3. Based on product volumes from four hydrogel companies across multiple specialties, developed by Incept LLC.
  4. Data on File at Tulavi Therapeutics
  5. Oliveira KMC, et al. Time course of traumatic neuroma development. PLoS One. 2018 Jul 16;13(7):e0200548.

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