Opening early 2027

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Conditions · Nassau County, NY

Post-surgical
pain.

At a glance

Post-surgical pain is pain that persists beyond expected recovery after an operation, sometimes involving nerves, muscles, joints or the surgical region. Institute of Function starts with diagnosis and rehabilitation, considering the least invasive effective option and procedures only when examination supports them. Dr. Benjamin (Ben) Klyachman, D.O., board-certified in pain medicine and physical medicine and rehabilitation, leads care at Institute of Function in Nassau County, NY, which welcomes patients from across Long Island, New York City and beyond.

Pain after an operation can reflect normal recovery, a persisting original problem or a new contributor that needs investigation. Persistent pain is not automatically evidence that surgery failed. Institute of Function opens in Nassau County in early 2027. Planned assessment will review the operation, recovery course and current function, coordinating with the surgeon before choosing further care.

Medically reviewed by Dr. Ben Klyachman, D.O. · Updated October 21, 2026

Common causes

  • Local nerve irritation or injury associated with the operation or recovery.
  • Muscle weakness, stiffness or altered loading during rehabilitation.
  • A persisting joint, spine or soft-tissue pain source.
  • Scar sensitivity or heightened pain sensitivity after healing.
  • Infection, a structural complication or another problem requiring surgeon assessment.

How we evaluate

Evaluation begins with the surgical records, expected healing timeline, prior symptoms and any new swelling, sensory change or weakness. Examination assesses the surgical region, nearby joints, strength, sensation and movement, while respecting postoperative precautions. Existing imaging is reviewed before additional studies are considered. Selected ultrasound or EMG and nerve conduction studies may clarify a focused soft-tissue or nerve question. Findings suggesting infection, a structural complication or worsening neurological function call for prompt surgeon coordination rather than routine pain treatment.

Treatment options
we may discuss.

  • Performance Health / rehabilitation

    Rehabilitation may address strength, mobility, desensitization and gradual return to daily tasks within the surgeon's precautions. Loading is adapted to the healing tissue, not progressed simply because pain decreases. Coordination with physical or occupational therapists keeps the operation, recovery stage and goals aligned. A surgical opinion is sought when a complication or structural problem truly requires it, rather than treating another operation as the default response to persistent pain.

  • Regenerative & Cell-Based Medicine

    Regenerative options may be discussed only for a separate, clearly diagnosed tendon, ligament or joint problem when evidence and tissue safety support them. They are not established treatments for every surgical scar or damaged nerve, and are not proposed to correct hardware problems or infection. Cell-based options require separate evidence and regulatory review. Surgeon coordination and rehabilitation remain the foundation of any plan.

  • Targeted Pain Management

    Medication review and selected nerve-focused procedures may be considered when examination identifies a suitable target. An image-guided injection is not a substitute for investigating a surgical complication. Procedures are image-guided, using ultrasound or X-ray guidance depending on the target. A corticosteroid is considered only when it is needed and compatible with the recovery plan; risks, timing and alternatives are discussed with attention to the surgical history.

Common
questions.

When to seek
care urgently.

Seek emergency care for chest pain, breathing difficulty, new bladder or bowel dysfunction or rapidly worsening weakness. Contact the surgeon promptly for fever, spreading wound redness, drainage or increasing postoperative swelling and pain.

This page is general information, not medical advice. Individual results vary. Medical Disclaimer

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