• Labor Day
    Office Hours

    Tri Rivers will be closed Monday, Sept. 2, in observance
    of Labor Day. 
    Patients should submit their prescription refill
    requests accordingly 
    to allow adequate time for processing.

  • What is bi-level
    disc replacement?

    Bi-level disc replacement is a procedure used to treat bi-level disc herniations, or
    ruptures, in the neck. To find out more and learn if it is right for you, Dr. Scott Rainey, 
    a Tri Rivers fellowship-trained orthopedic back and neck surgeon, explains its benefits. 

    Read More
  • Dr. Muzzonigro to present
    on hip and knee surgery

    Thomas Muzzonigro, MD, a Tri Rivers hip and knee surgeon, will present
    "What's New in Hip and Knee Surgery" at 4:30 p.m. Sept. 25 at Butler Memorial Hospital.
    This is a free educational program, and refreshments will be provided. To learn more,
    please click below.

    Learn More
  • Dr. Pacek-Tri Rivers-Butler Radio

    Listen to Dr. Pacek
    on Butler Radio

    As high school football season gets underway, listen to
    Dr. Corey Pacek, Tri Rivers hand and upper extremity surgeon,
    explain his unique bond with the Knoch football team
    and the Butler community.

    Listen Now
  • When passion for sport meets
    passion for profession

    When a competitive handball player needed two shoulder replacement surgeries to get him
    back on the court, Dr. Robert Waltrip and Tri Rivers were there to help. Scroll down this page
    to read more.

Get to know our physicians and staff. Visit our events calendar.


Our clinical team — comprised of 13 orthopedic surgeons, two primary care sports medicine specialists, six physical medicine and rehabilitation specialists (physiatrists) and two rheumatologists — covers the broad spectrum of musculoskeletal care.

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When renaming our practice, much consideration was given to select a name that more accurately reflects the broad scope of services and specialties we offer, including: orthopedic surgery and sports medicine, physical medicine and rehabilitation, and rheumatology.

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Staff at Tri Rivers Musculoskeletal Centers cares for patients in six convenient locations in Allegheny and Butler counties, including two offices each in the Butler and Cranberry communities, and one each in North Hills, Saxonburg and Slippery Rock.

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