Wally Krengel, MD

Wally Krengel, MD

Orthopedics, Spine

On staff since December 1990

Children's Title: Chief, Spine

Research Center: Center for Clinical and Translational Research

"I was the fix-it man at home growing up. I loved to take apart (and put back together) every old device I could clocks, radios, engines, and put together models, kits, blocks, and erector sets. If there was anything broken or malfunctioning, mom or dad expected me to fix it. I found pediatric spinal deformity to be the ultimate clinical application of technological advancement in orthopedic surgery. Particularly because of the critical and sensitive spinal cord laying within!! Many of the procedures used routinely today for pediatric spine problems were not even considered possible 25 years ago when I was in medical school or residency. I guess one might think of it as being able to use the ultimate erector set to rebuild childrens spinal columns around the spinal cord. WOW! I couldnt have imagined when I started medical school being able to do the things I do now on a daily basis. On top of that - I just love taking care of children."

Walter (Wally) Franklin Krengel III, M.D. (Wally): Orthopedic Surgeon; Chief of Spine Surgery at Seattle Childrens Hospital. His specialty interests include; pediatric spinal deformity, pediatric cervical spine instability; congenital deformity as well as general pediatric orthopedic trauma. Dr. Krengel is a member of the American Academy of Orthopedic Surgeons, the Scoliosis Research Society and the North American Spine Society. He has been on staff at Seattle Childrens Hospital for 25 years.

Dr. Krengel is a clinical associate professor in the Department of Orthopaedics and Sport Medicine, University of Washington School of Medicine. He completed his undergraduate degree and his M.D. at Stanford University. His internship in general surgery and residency in orthopedics were completed at the University of Washington. He also completed a fellowship in spine surgery at the University of Washington. Dr Krengel has a great love of the outdoors and when not in surgery can be found fly fishing, skiing, golfing, chopping wood, or even digging holes, as long as it is outside he is there!


  • Beth Kirkland, WA 04.03.15

    If you have a child with Scoliosis you could not be in better hands than with Dr. Krengel! I use to work for him a few years ago and know this for a fact. He was the first doctor to tell me I had scoliosis! I was seeing him for a painful hip and I had no idea I had adult Scoliosis! Unfortunately for me, Dr. Krengel does not treat adult scoliosis any longer. But take it from me, you will be getting one of the best doctors ever to treat your child and like I said I know firsthand as I worked with him and saw how he was with everyone. I would totally put my trust in him to treat myself or my kids, no questions asked!

  • Kimberly Edmonds, Washington 10.28.14

    Our son needed surgery for his severe spinal curve due to Scoliosis and Dr. Krengel performed a miracle. Dr, Krengel, along with the staff at Seattle Children's, took such amazing care of our son before, during and after surgery. It is apparent to us that Dr. Krengel thoroughly enjoys working with children and we couldn't have been more pleased with him or his talents as a surgeon. Thank you Dr. Krengel!

  • Renee Mount Vernon, WA 01.01.14

    Dr. Krengel is a ROCK STAR! After our son was injured in a rugby game last Spring, he was thought to just have a neck strain. But when symptoms persisted, our pediatrician sent his X-ray down to Children's for a look....and thank goodness she did! Zach had been walking around for a week with a broken neck! Dr. Krengel's team did an amazing job of first - calming the very stressed-out mother down! - then explaining the surgical procedure step by step, getting him stabilized and comfortable, and were able to perform the surgery using the least invasive procedure. He has made a full and rapid recovery and we have Dr. Krengel to thank! Not only is he an amazing surgeon, but his compassion, knowledge, and open communication style are top notch! Thank you Dr. Krengel & Children's!!

  • cole woodinville WA 11.09.12

    i would rate Dr.Krengel a six out of five stars!!!!!!:) i had scfe on my hip, and he did an awesome job!!!!!!!!!!!!!!:):):) thanks Dr.Krengel! -cole

  • Amy Kent,WA 10.01.12

    My daughter was diagnosed with mild scoliosis which then progressed to severe scoliosis in a matter of months. Her only option was surgery. Dr. Krengel came highly recommended and we were not disappointed. He did an amazing job. Both he and his wonderful staff took great care of us and my daughter. Neither myself or my ex-husband have a medical background; Dr, Krengel took his time explaining everything in a manner in which we could understand. He has a strong and reassuring presence which is very helpful when you are in a situation that is beyond your control. Two years after surgery, my daughter is back to normal. People are always surprised when they find out she has had spinal fusion surgery. If we had to do this over again, I would choose Dr. Krengel without hesitation to take care of my baby.

  • Victor Seattle, WA 12.01.11

    I was suffering from severe spondylolysthesis. Dr. Krengel took the time to explain the problem, and the options available to me, and was genuinely concerned for my well being, and if not for his work, I wouldn't be walking today. Dr. Krengel is a great surgeon and recommend him highly.

  • Kim Olympia, WA 06.06.11

    My daughter had a 4 level spinal fusion for scoliosis in Dec of last year. She had it done at Seattle Childrens Hospital by Dr. Krengel. She has had abolutely no issues at all. I would highly recommend Dr. Krengel. He did an amazing job. She is a dancer and gymnist and is already back to dancing and doing cartwheels and roundoffs, 6 months post surgery. He is a very humble and caring Physician with years of experience and was recommended to me by other Physicians. If you have a child with a spinal issue there is no one better!

  • Jennifer Tacoma WA 04.04.11

    My daughter recently found out that she had a broken neck. Dr Krengel was very thorough and decided that she needed surgery as soon as possible. He was pleasant and well informed about the whole process. I have never had a doctor call me to check on my child before and afterwards Dr. Krengel did his normal rounds but when we went home after surgery He and his staff called several times to see how my daughter was doing. I would recommend him fully if you have a problem with the spine.


Board Certification(s)

Orthopedic Surgery

Medical/Professional School

Stanford University School of Medicine, Stanford


Orthopedic Surgery, University of Washington School of Medicine, Seattle


Orthopedic Surgery, University of Washington School of Medicine, Seattle

Research Focus Area

Translational Research

Awards and Honors

Award Name Award Description Awarded By Award Date
 Trauma Paper Competition - American College of Surgeons American College of Surgeons Jan. 1, 1990
“With Distinction”, Department of Biology, Stanford University Stanford university Jan. 1, 1981
Delta Kappa Epsilon Scholarship Stanford University Jan. 1, 1980


  • Gebhart S | Alton TB | Bompadre V | Krengel WF
    Do anchor density or pedicle screw density correlate with short-term outcome measures in adolescent idiopathic scoliosis surgery?
    Spine , 2014 Jan. 15 - 2014 Jan. 15 : 39(2)E104-10
  • Pace JL, Wiater B, Schmale G, Jinguji T, Bompadre V, Krengel W 3rd
    Baumann angle and radial-ulnar overlap: a radiographic study to control for the angle of the x-ray beam.
    22706461 Journal of pediatric orthopedics , 2012 July : 32(5)467-72
  • Krengel WF 3rd, Wiater BP, Pace JL, Jinguji TM, Bompadre V, Stults JK, Schmale GA
    Does using the medial or lateral humeral line improve reliability of Baumann angle measurement on plain x-ray? The effect of humeral length visualized on the x-ray.
    22584838 Journal of pediatric orthopedics , 2012 June : 32(4)373-7
  • 11) Karandikar, Mirza, Song, Jain, Krengel WF3rd, Spratt, Avellino
    SPINE11-650: Complex Pediatric Cervical Spine Surgery Using Small- Non-spinal Screws and Plates and Intra-operative CT Imaging
    Journal of Neurosurgery: Spine , 2012 June : 9(6)594-601
  • Krengel WF 3rd | Wiater BP | Pace JL | Jinguji TM | Bompadre V | Stults JK | Schmale GA
    Does using the medial or lateral humeral line improve reliability of Baumann angle measurement on plain x-ray? The effect of humeral length visualized on the x-ray.
    Journal of pediatric orthopedics , 2012 June - 2012 June : 32(4)373-7
  • Wally Krengel, MD, Reinhold M, Bellabarba C, Bransford J, Chapman J, Krengel WF3rd, Lee M, Wagner T
    Radiographic analysis of type II odontoid fractures in a geriatric patient population: description and pathomechanism of the “Geier” deformity
    Eur Spine , 2011 July 28
  • Shank CF, Wiater BP, Pace JL, Jinguji TM, Schmale GA, Bittner RC, Bompadre V, Stults JK, Krengel WF 3rd
    The lateral capitellohumeral angle in normal children: mean, variation, and reliability in comparison to Baumann's angle.
    21415685 Journal of pediatric orthopedics , 2011 Apr, : 31(3)266-71
  • Wally Krengel, MD, Dinulos JG, Darmstadt GL, WilsonCB, Krengel WF3rd, Burns JL
    Nocardia asteroids septic arthritis in a healthy child
    Pediatr Infect Dis J , 1999 Mar. : 308-10
  • Wally Krengel, MD, 2) Mirza SK, Krengel WF3rd, Chapman JR, Anderson PA, Bailey JC, Grady MS, Yuan
    Early versus delayed surgery for acute cervical spinal cord injury
    Clin Orthop Relat Res , 1999 Feb. : 104 - 14
  • Mirza SK | Krengel WF 3rd | Chapman JR | Anderson PA | Bailey JC | Grady MS | Yuan HA
    Early versus delayed surgery for acute cervical spinal cord injury.
    Clinical orthopaedics and related research , 1999 Feb. - 1999 Feb. : (359)104-14
  • Wally Krengel, MD, Krengel WF3rd, King HA
    Scoliosis: Office Diagnosis, Therapeutic Choices
    Journal of Muscle Medicine , 1995 : 54
  • Wally Krengel, MD, Krengel WF3rd, King HA:
    Scoliosis: Office Diagnosis, Therapeutic Choices
    J. Musc Med , 1995 : 54
  • Wally Krengel, MD, Powell ET 4th, Krengel WF3rd, King HA, LaGrone MO
    Comparison of same-day sequential anterior and posterior spinal fusion with delayed two-stage anterior and posterior spinal fusion
    Spine , 1994 June : 1256-9
  • Wally Krengel, MD, Krengel WF3rd
    Early stabilization and decompression for incomplete paraplegia due to a thoracic-level spinal cord injury
    Spine , 1993 Oct. : 2080 - 7
  • Wally Krengel, MD, Krengel WF3rd, Robinson LR, Schneider VA
    Combined effects of compression and hypotension on nerve root function. A clinical case. Spine
    Spine , 1993 Feb. : 306 - 9
  • Wally Krengel, MD, Krengel WF3rd, Staheli LT
    Tibial Rotational Osteotomies for idiopathic torsion. A comparison of the proximal and distal osteotomy levels
    Clin Orthop Relat Res , 1992 Oct. : 285 - 9
  • Wally Krengel, MD, Krengel WF3rd
    Overlap: A Radiographic Study to Control for the Angle of the X-Ray Beam
    Journal of Pediatric Orthopaedics


Presentations Title Event Location Date
An updated algorithm for radiographic screening of upper cervical instability in patients with Down syndrome European Pediatric Orthopaedic Society Annual Meeting Marseille, France April 15, 2015
Effectiveness of the "Spine At Risk" Safety Program Pediatric Orthopaedic Society of North America Annual Meeting Hollywood, CA April 30, 2014 - May 3, 2014
Radiation Exposure during Posterior Instrumented Fusion for Idiopathic Scoliosis American Academy of Orthopedic Surgeons Annual Meeting New Orleans, LA March 11, 2014 - March 15, 2014
Utility of Flexion, Extension, AP and Open Mouth Views in Down Syndrome Cervical Spine Screening Pediatric Orthopaedic Society of North America (POSNA) E-Poster #22 Toronto, Canada May 1, 2013
Utility of Flexion, Extension, AP and Open Mouth Views in Down Syndrome Cervical Spine Screening Cervical Spine Research Society Annual Meeting Chicago, IL Dec. 15, 2012
Standardization in Pediatric Spinal Deformity Surgery 2012 ACS NSQIP National Conference Salt Lake City, UT July 1, 2012

Research Funding

Grant Title Grantor Amount Award Date
Site Investigator – Accrual for Genetics of Spinal Deformity Conditions Axial Biotech $7,500.00 Aug. 1, 2009
Scoliosis: Retrospective Clinical Registry Seattle Children’s Hospital Department of Pediatrics May 1, 2009
Syringomyelia-associated scoliosis: Radiological characteristics and disease progression Seattle Children’s Hospital Department of Pediatrics April 2, 2009
Linkage Analysis and Gene Mapping of Familial Spinal Disorders, Scoliosis, Scheuermann’s Kyphosis, Spondylolsthesis, Lumbar Disc Disease, Osteoporosis Axial Biotech Inc Jan. 22, 2009
1) FDA phase 3 Trial, Safety and Efficacy of Titanium Surgical Mesh and Moss-Miami Pedicle Instrumentation for Spinal Fusion FDA 2001 - 2008