Doctor photo
Specialty :


  • Sport Medicine and Shoulder Joint Surgery




  • Certification of Observational Doctor in the Department of Orthopedics Surgery, AZ Monica hospital, Belgium


  • Certification of Clinical Fellow in the Department of Orthopedics Surgery, Tohoku University School of Medicine, Japan
  • Certification of Fellowship in Sports Department of Orthopedics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University


  • Residency Training in Department of Orthopedic of Medicine, Ramathibodi Hospital, Mahidol University


  • Graduated from Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
Special clinical trainings

  • Ambulatory surgery system
  • Medical engineer
Special clinical interests

  • General Orthopedic Surgery
  • Knee and shoulder arthroscopic surgery
  • Ambulatory surgery system
  • Development of Simulator Medical Device
Conditions treated

  • Joint replacement surgery
  • Reverse shoulder replacement surgery
  • Shoulder replacement revision
  • Revision of previous trauma surgery
  • Humerus fracture fixation
  • Clavicle fracture fixation

  • Superior capsule reconstruction
  • Tendon transfer
  • Shoulder ligament reconstruction
  • Rotator cuff surgery
  • Shoulder instability surgery
  • Shoulder arthroscopy
  • Joint replacement revision
  • Nonunion surgery
  • Latarjet procedure
  • Shoulder fracture fixation
  • Shoulder arthritis,
  • Acromioclavicular joint sprain
  • Golfer’s elbow
  • Biceps tendinitis
  • Proximal humerus fracture
  • Acromioclavicular joint arthritis
  • Post-traumatic arthritis
  • Broken collarbone
  • Separated shoulder
  • Rotator cuff injury
  • Meniscus repair
  • Meniscectomy
  • PCL injury
  • ACL injury
  • Patellar tendinitis
  • Knee pain
Research and publications


  • Predicting surgical factors for unplanned overnight admission in ambulatory arthroscopic surgery of the knee: a prospective cohort in one hundred and eighty four patients (May 2022, International Orthopaedics)

2021 – 2022

  • Cost-minimization Analysis of Outpatient vs. Inpatient Care for Arthroscopic Knee Surgery in Thailand


  • Differentiating Surgeons’ Expertise solely by Eye Movement Features (October 2021Conference: ICMI ’21: INTERNATIONAL CONFERENCE ON MULTIMODAL INTERACTION)
  • 2021 – States of Confusion: Eye and Head Tracking Reveal Surgeons’ Confusion during Arthroscopic Surgery (October 2021 Conference: ICMI ’21: INTERNATIONAL CONFERENCE ON MULTIMODAL INTERACTION)


  • The Role of Spatial Cognition in Surgical Navigation in Arthroscopic Surgery (May 2020Conference: Spatial Cognition XII Papers from 12th International Conference,At: Riga, Latvia)


  • Arthroscopic surgical skill evaluation and comparison of objective psychomotor skills between surgical residents and fellows using eye tracking device

2018 – 2020

  • The influence of Tourniquet time on unplanned admissions in ambulatory knee arthroscopic surgery
  • The feasible and cost-effective arthroscopic skills simulator for Resident training

2014 – 2017

  • Does radiological radial styloid malrotation correlate with functional outcome?
Show more research and publications
Professional memberships

  • The Royal College of Orthopaedic Surgeons of Thailand (R.C.O.S.T.)
  • Thai Orthopedic Society for Sports Medicine

Clinic Hours


Mr. Nyan, a sports lover had his meniscus and ACL injured on a football field 4 years ago. With continuous pain and discomfort, Mr. Nyan had to take a break from his favourite sports for years upon doctor’s advice. He then decided it’s time for him to receive treatment and get back to sports again. Out of multiple hospitals and doctors for him to choose in Thailand, Mr. Nyan along with a help of his father who is a doctor, made a decision to choose Vejthani Hospital and Dr. Ratthaphoom Watcharopas, sport medicine, knee & shoulder Arthroscopic surgeon to treat his prolonged condition.

Call us at
(+66)8-522 38888
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