Mark C Dales, MD

Mark C Dales, MD

Orthopedics, Fracture Program

On staff since June 2011

Children's Title: Chief, Fracture Clinic

Academic Title: Clinical Associate Professor

    • Kelly Seattle, WA 12.23.20

      I was diagnosed with Leg Calf Perthes Disease in 1992 when I was 11 years old. A quick surgery later and my hip is as good as new. I haven't had a single problem since. Thank you to Dr. Dales for all that you did to give me a normal life. I boxed in the amateurs; I run, bike, and am very active. Perthes has not held me back. For those of you with children who have been diagnosed with Perthes, know that it was a net positive in my life. It taught me to overcome adversity at a young age - which has proven tremendously valuable. I'm grateful for the experience. Thanks Dr. Dales!

    • Prasad Bothell, WA 07.16.20

      This week we were lucky to meet Dr. Mark Dales for my daughter’s surgery for osteomyelitis at Seattle Children’s. As parents we always wanted to avoid surgery at this young age, but Doctor spent few moments to explain the steps how he can cure the osteomyelitis completely from my daughter by giving step by step informed decisions. That few minutes were very beneficial and Dr. Dales took nice care. All the staff and other specialists who treated my daughter was also very wonderful.

    • Sierra Everett 10.24.16

      Dr. Dales is a wonderful doctor. My daughter Nyah was diagnosed with Hip Dyslpasia at 3 months. At 6 months Dr.Dales put on her Spica cast. Dr. Dales eased our nerves with his confidence and assurance that he would provide clear steps to fix it. As a mother the other thing that made me feel better was how much my daughter loved him. She smiled endlessly when he would talk to her. I am greatful to him and Seattle Children's. Although our journey isn't done yet I have to say I am so happy we got him as our daughter's doctor through this journey.

    • Ashley roy 01.05.12

      10 years ago Dr. Mark Dales did surgery on my leg which I was diagnosed with Leg Calf Perthesis Disease and I now ride horses and am a normal senior in High school. Thank you so much

    • Amy Bellevue, Washington 08.12.11

      Dr. Mark Dales is WONDERFUL! When my first son, Zachary, was born in March 1997, he had severe club FEET. The pediatrician recommended Dr. Dales and he was the best thing that happened to a new mom with a "sick" baby! Zach was put in cast at 5 days old and we saw Dr. Dales weekly to change them until his surgery in October. My son had to have another surgery just on his left foot at 4 and he is now playing High School Football. Thank you Dr. Dales! Children's is lucky to have you!

  • Award Name Award Description Awarded By Award Date
    SEATTLE MAGAZINE TOP DOCTOR - 2014 Seattle Magazine 2014
    Seattle Magazine Top Doctor - 2013 Seattle Magazine 2013
  • Published Abstracts

    • Kletter GB, Dales MC
      Schorrss Utility of FGG23Venus: "Sampling in a Child with Hypophosphatenic Rickets"
      Endo, 2011
    • McLaughlin JF Bjornsan KF, Hausr, Dales MC
      Effacacy of Selective Dorsal Rhizotany in CP: "Changes in Mobility After Twelve Months".
      AACPDM, 1996
    • McLaughlin JF Bjornsan KF, Hausr, Dales MC
      Effacacy of Selective Dorsal Rhizotany in CP: "Changes in Sarsticity and Neurology Signs After Twelve Months".
      AACPDM, September, 1996
    • Robins AJ, Stevens PM, Dales MC
      "Correction of Adolescent Idiopathic Genu Valgum with Physeal Stapling"
      Orthop Trans, 1992 : 16(3)654
    • Staheli LT, Chew DE, Dales MC, Hoffinger SA
      "Slotted Acetabular Augmentation in Childhood and
      Orthop Trans, 1992 : 16(3)655
    • Dales MC, West JD
      "Diagnostic Hip Arthrocentesis in Children the Significance of a Dry Tap"
      Orthop Trans, 1991 : 15(1)85
    • Dales MC, Johnston CE, Loder RT
      "Prognostic Factors in Infantile Tibia Vara".
      Orthop Trans, 1991 : 15(1)118
    • Hofmann AA, Dales MC, Wyatt RW
      . "High Tibial Osteotomy: Use of an Osteotomy Jig, Rigid Fixation, And Early Mobilization vs. Conventional Surgical Technique and Cast Immobilization"
      Orthop Trans, 1987 : 11(3)460
    • Newman AP, Anderson PR, Daniels AU, Dales MC
      "Mechanics of Meniscal Repair in a Canine Model"
      Trans Orthop Res Society, 1987 : 12469
    • Daniels AU, VanDampen CL, Dales MC
      "Comparison Of Degradable and Non-Degradable Underplates forAugmentation of Fracture Fixation"
      Trans 12th Annual Meeting, Society for Biomaterials, 1986 : 9202

    Other Publications

    • Stevens PM, Maguire M, Dales MC, Robins AJ
      "Physeal Stapling for Idiopathic Genu Valgum"
      Pediatric Ortho, 1999 : 19((5))645-649
    • Raizenne M, Dales R, Burnett R
      Air pollution exposures and children's health.
      9654792 Canadian journal of public health = Revue canadienne de sante publique, 1998 May : 89 Suppl 1S43-8, S47-53
    • Lieberman JR, Dales MC, Staheli LS
      "Tournequet Pressure on Pediatric Patients a Clinical Study".
      Orthopedics, 1997 : 20((12))1143-1147
    • Hoffinger SA, Henderson RC, Renner JB, Dales MC, Rab, GT
      "Magnetic Resonance Evaluation of Metaphyseal Cysts in Legg-Calve-Perthes Disease"
      J Pediatric Ortho, 1993 : 13((5))602-606
    • Dales MC, Johnston CE, Loder RT
      "Prognostic Factors in Infantile Tibia Vara"
      Orthop Trans, 1991 : 15(1)118
    • Newman AP, Anderson DR, Daniels AU, Dales MC
      "Mechanics of the Healed Meniscus in the Canine Model"
      Am J of Sports Med, 1989 : 17((2))764-775

  • Presentations Title Event Location Date
    Gait and Limp: Checking for Normal and Abnormal and When to Refer LT Staheli Pediatric Orthopedic Seminar Seattle Children's Hospital 2014
    Demystifying Physeal Fractures Orthopaedics and Sports Medicine Grand Rounds Genome Sciences Building, Foege Auditorium 2013
    "When a Sprain is Not a Sprain: Injury Mimics" 39th Annual Advances in Family Practice and Primary Care. Seattle, WA 2011
    "Evaluation of Hip Status Following Selective Dorsal Rhizotomy: Prospective Randomized Controlled Trial" American Academy of Cerebral Palsy and Developmental Medicine Philadelphia, PA 1996
    "Comparative Mechanical Testing of a Biodegradable Intramedullary Nail" International Symposium on Biodegradable Materials 1995
    . "Comparative Mech-anical Testing of a Biodegradable Intramedullary Nail" International Symposium on Biodegradable Materials Moscow, USSR 1995
    "Hip Flexor Strength Following Medial Approach Open Reduction (MAOR) for Developmental Dysplasia of the Hip" American Academy of Orthpedic Surgeons San Francisco, CA 1993
    "Septic Hip in Older Children and Adolescents" American Academy of Orthopedic Surgeons San Francisco, CA 1993
    "Prognostic Factors In Infantile Tibia Vara" American Academy of Orthopedic Surgeons New Orleans, LA 1990
    "Small Joint Arthodesis Utilizing Rigid Internal Fixation" American Society for Surgery of the Hand, 44th Annual Meeting Seattle, WA 1989
    "Small Joint Arthodesis Utilizing Rigid Internal Fixation" American Academy of Orthopedic Surgeons Atlanta, GA 1987
  • Grant Title Grantor Amount Award Date
    Supracondylar Patient Safety Checklist AEF 2013 - 2015
    Supracondylar Patient Safety Checklist Seattle Children's Academic Enrichment Fund 2013 - 2015


Board Certification(s)

Orthopaedic Surgery

Medical/Professional School

University of Nevada School of Medicine-Reno, Reno, NV


University of Utah School of Medicine, Salt Lake City, UT


Texas Scottish Rite Hospital for Children, Dallas, TX

Clinical Interests

Scoliosis; congenital and developmental abnormalities in the hip, lower extremity, and feet; leg length inequality and malalignment; fracture care; optimizing fracture management.