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  • Orthopaedic Trauma, Orthopedic Spine Surgery, Orthopedic Surgery
  • Accepting new patients
  • 46 years of experience
  • Pacific Spine Specialists 19260 SW 65th Ave Ste 270, Tualatin, OR 97062
  • (503) 885-9391

Brief Intro

Dr. Keenen is a board certified and fellowship trained orthopedic spine surgeon in Portland, OR treating neck and low back surgical conditions. Dr. Keenen’s office, Pacific Spine Specialists, is a top spine surgeon practice located in the Portland Oregon area. Dr. Keenen is highly experienced with minimally invasive spine procedures, motion preservation surgeries (cervical and lumbar artificial discs), micro-discectomy, cervical fusion, and lumbar fusion. After 20 years’ experience as a deformity surgeon, performing thousands of simple to highly complex spine surgeries, along with teaching 8 years on the faculty at Oregon Health Sciences University, he is committed to ensuring patients receive the proper diagnosis and the most effective surgery to achieve optimal function and pain relief. He performs spine surgery at Providence and Legacy Hospitals, and the South Portland Outpatient Surgical Center. Dr. Keenen is proud to have successfully implemented the first JCAH-certified spine center in Oregon. After studying with national experts, the advanced technique he now uses and teaches brings maximal protection and preservation of the essential supporting multifidus muscle of the lumbar spine. Applying these innovative techniques that have advanced MIS, and using state-of-the-art spine instrumentation, he is now able to perform these surgeries through one small incision with minimal soft tissue injury. As a result, patients are experiencing success with shorter and easier recovery times after fusions, discectomies, or decompressions. Dr. Keenen is a national level instructor for the next generation state of the art minimally invasive IMERGENT decompression fusion surgical procedure (DePuy Synthes). In 2014, while in Portland, Cirque de Solei chose Dr. Keenen as their operating spine surgeon for their injured performers. Dr. Keenen is devoted to his two children. He enjoys playing his classical guitar.

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Education Background

RESIDENCY

Uc Davis Medical Center

MEDICAL SCHOOL

St Louis University School Of Medicine - 1979

Languages Spoken

  • English

Location & Hours

  • Pacific Spine Specialists
  • 19260 SW 65th Ave Ste 270, Tualatin, OR 97062
  • Mon:8:30 am - 4:30 pm
    Tue:8:30 am - 4:30 pm
    Wed:8:30 am - 4:30 pm
    Thu:8:30 am - 4:30 pm
    Fri:8:30 am - 3:00 pm
    Sat:Closed
    Sun:Closed

Specialties Treated

  • Orthopedic Spine Surgery
  • Orthopedic Surgery
  • Orthopaedic Trauma

Conditions Addressed

  • Intervertebral Disc Degeneration

Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Medicare
  • Providence Health Plans
  • Cancer 11
  • Cardiology, Heart & Vascular Surgery 10
  • Orthopedics 22
  • Neurology & Neurosurgery 15
  • Gastroenterology & GI Surgery 19
  • Pulmonology & Lung Surgery 18
  • Diabetes & Endocrinology 4
  • Children's Hospital 3
  • Urology 17
  • Psychiatry 12
  • Geriatrics 20
  • Rehabilitation 6
  • Obsterics & Gynecology 1
  • Ophthalmology 1
  • Ear, Nose & Throat 1
  • Long Term Care 1
  • Maternity Care (Uncomplicated Pregnancy) 7