Centers & Services

Department of Orthopaedic Surgery

What is orthopaedic surgery?

Orthopaedic surgery covers the diseases and injury of cartilages, bones, muscles, ligaments, and nerves. The Department of Orthopaedic Surgery is in charge of elucidation of morbidity, development of therapies, and medical examination in these fields.

Our Physicians

Director, Orthopaedic Surgery Department

Toshifumi Ozaki, Professor
[Bone and soft tissue tumors and spinal surgery]


Keiichiro Nishida12 Associate professor [Rheumatic deseases / Upper limb surgery]
Takayuki Furumatsu1 Lecturer [Knee Joint Surgery]
Yasunori Shimamura1 Assistant professor [Upper limb surgery, upper limb sports medicine / pediatric congenital]
Hirosuke Endo1 Assistant professor [Hip surgery / pediatric orthopaedic surgery]
Shinichi Miyazawa1 Assistant professor [Knee Joint Surgery]
Haruo Misawa1 Assistant professor [Spinal surgery]
Tomoyuki Takigawa1 Assistant professor [Spinal surgery]
Tomonori Tetsunaga1 Assistant professor [Hip surgery / pediatric orthopaedic surgery]
Kenta Saiga1 Assistant professor [Foot and Ankle, Sports Medicine]
Yasuyuki Shiozaki1 Medical staff [Spinal surgery]
Taichi Saito1 Medical staff [Upper limb surgery]
Tomoko Tetsunaga1 Assistant professor [Spinal surgery / Pain Center]
Joe Hasei1 Medical staff [Bone and soft tissue tumors]
Ryo Nakamichi1 Medical staff [Upper limb surgery]

Division of Physical Medicine and Rehabilitation, Okayama University Hospital

Masuo Senda12 Professor [Rehabilitation / sports medicine]
Yoshimi Katayama2 Assistant professor [Rehabilitation / electrophysiology]

Department of Intelligent Orthopaedic Systems (Course endowed by Nakashima Medical)

Kazuo Fujiwara1 Associate professor [Hip surgery / rheumatic diseases]
Eiji Nakada1 Assistant professor [Bone and soft tissue tumors]

Department of Medical Materials for Musculoskeletal Reconstruction (Course endowed by Kyocera Medical)

Toshiyuki Kunisada12 Associate professor [Bone and soft tissue tumors / joint surgery]
Yoshihisa Nasu1 Assistant professor [Rheumatic diseases / upper limb surgery]

Department of musculoskealtal traumatology

Tomoyuki Noda1 Associate professor [Trauma / joint surgery]
Ryuichi Nakahara1 Assistant professor [Trauma / joint surgery]

Department of Emergency Health Care and Disaster Medicine

Yasuaki Yamakawa1 Assistant professor [Trauma surgery]

* Suffix to names denote the following: 1, Medical Specialist of Japanese Orthopaedic Association;
2, Medical Specialist of Japanese Association of Rehabilitation Medicine

*Specialty shown in [ ]

Clinical sections available by day of the week

Monday Tuesday Wednesday Thursday Friday
General outpatient
Special outpatient Bone and soft tissue tumors 1st・3rd・5th week
Joint surgery Hip joint surgery 2nd・4th week
Knee joint surgery
Foot surgery
Upper limb surgery
Rheumatic diseases 2nd・4th week
Spinal surgery
Pediatric orthopaedic surgery
Sports medicine
Bone infection
Pain center

Treatment system

The Department of Orthopaedic Surgery consists of many groups: bone and soft tissue tumors, joint surgery (hip joint, knee, upper limbs, and rheumatics), spinal surgery, pediatric orthopaedic surgery, sport orthopaedic surgery, upper limb surgery, rehabilitation, and trauma. Medical treatment are conducted by medical specialists in the respective fields.

Treatment policies

The Department of Orthopaedic Surgery offers broad and up-to-date therapies over the breadth of orthopaedic surgery fields. The outpatient departments have a special outpatient department by medical specialists in each field as well as a general outpatient department. Inpatients are taken care of using team health care by each special group. All operation cases undergo discussion and analysis by all the staff in conferences twice a week.


Lim-sparing surgery of bone and soft tissue malignant tumors (including artificial joints), artificial joint for hip, knees, and elbows (including minimally invasive surgery), spinal surgery (including minimally invasive surgery), surgery to treat pediatric orthopaedic diseases, anterior cruciate ligament reconstruction and meniscus surgery using arthroscopy, functional reconstructive surgery of hands, operations to treat upper limb sport disorders, fracture surgery (including surgery of pelvic ring fracture and acetabulum fracture and minimally invasive surgery), and infective pseudarthrosis surgery.

Scope of Target diseases

  • Bone and soft tissue tumors: primary benign/malignant bone and soft tissue tumors, etc.
  • Joint surgery: osteoarthritis, rheumatoid arthritis, necrosis of femoral heads, acetabular dysplasia, etc.
  • Spinal surgery: spinal osteoarthritis, disc herniation, spinal stenosis, scoliosis, ligament ossification, osteoporosis, spinal cord tumors, spinal cord injuries, etc.
  • Pediatric orthopaedics: congenital hip dislocation, clubfoot, torticollis, systemic bone diseases, etc.
  • Sport orthopaedic surgery: sport injuries of shoulders, elbows, knees, and feet, ligament rupture, etc.
  • Upper limb surgery: congenital anomaly of hands, entrapment peripheral neuropathy, disorder by rheumatoid arthritis, tendon rupture in shoulders and hands, etc.
  • Trauma: fracture of upper limbs, lower limbs, and pelvis, dislocation, rupture of ligaments and tendons, pseudarthrosis, osteomyelitis, etc.

Description of medical care

Orthopaedic surgery

  • Bone and Soft Tissue tumors
    Primary benign/malignant tumors and metastatic tumors of bones and soft tissues, etc.
  • Arthropathy
    The osteoarthritis, rheumatoid arthritis, necrosis of the femoral head, various artificial joints (shoulders, elbows, hip, and knees), etc.
  • Spinal Surgery
    Spinal osteoarthritis, disc herniation, spinal stenosis, scoliosis, ligament ossification, osteoporosis, etc.
  • Pediatric Orthopaedic Surgery
    Congenital hip dislocation, clubfoot, torticollis, systemic bone diseases, elongation of leg, etc.
  • Sport Medicine
    Arthroscopic surgery of shoulders, elbows, knees, and foot, ligament rupture, athletic rehabilitation, etc.
  • Upper Limb Surgery
    Congenital anomalies of hands, entrapment peripheral neuropathy, disorder by rheumatics, endoscopic surgery of shoulders and hands, etc.
  • Trauma
    Fracture of upper limbs and lower limbs, joint dislocation, rupture of ligaments and tendons, pseudarthrosis, osteomyelitis, etc.
    Foot and Ankle
    Hallux valgus
    Osteoarthritis of the ankle joint
    Chronic ankle instability
    Osteochondral lesion of the talus
  • Rehabilitation
    Functional recovery in diseases, such as motor disorder, respiratory diseases, cardiovascular diseases, and neurosurgical diseases.

The Department of Orthopaedic Surgery offers broad and up-to-date therapies over the whole orthopaedic surgery region aside from these. The outpatient departments have a special outpatient department by medical specialists in each field as well as a general outpatient department, as shown in the following table.

For Outpatient Visit

Doctors’ office hours are in the morning on Mondays, Tuesdays, and Thursdays as a rule. First visit patients are advised to register at the General Outpatient Reception by 11:00 (as early as possible) to consult the orthopaedic surgery. Revisiting patients are advised to make an appointment as a rule.

Highly advanced /special medical treatment

Techniques covered by health insurance programs

  • Ultrasound bone fracture therapy (limited to cases when invasive surgery is executed for the open fracture or comminuted fracture of arms and legs)
  • Ultrasound therapy for intractable bone fracture

Techniques designated as highly advanced medical treatments

  • Endoscopic subacromial decompression
  • Ultrasound bone fracture therapy (except for cases in which invasive surgery is executed for an open fracture or comminuted fracture of arms and legs)

Techniques performed as clinical research

  • Navigation surgery (artificial hip joints, artificial knee joints, spines, trauma)
  • Clinical evaluation of artificial hip joint system (C-system)
  • Sit-to-stand support system using artificial muscles and gripping operation support system
  • Calorie consumption analysis using TENS
  • Endoscopic spinal surgery

Main methods for testing and explanation

  • Computed Tomography [CT] (simple, imaging) / three-dimensional inspection of bones
  • Magnetic Resonance Imaging [MRI] (simple, imaging) / inspection of soft tissues or nerves
  • Bone scintigraphy / assessment of the degree of osteogenesis
  • Thallium scintigraphy / distinction of benignancy and malignancy of tumors and test for effectiveness of therapy
  • Myelography / inspection of the degree of spinal cord compression
  • Electromyography and nerve conduction velocity / assessment of nerve and muscle function

Characteristic and Unique Therapies in the Okayama University Hospital

Bone and soft tissue tumors

Malignant bone and soft tissue tumors are rare, but life-threatening diseases. Amputation has been the major treatment with a survival rate of about 20% until 30 years ago. Today, the development of therapies allows the Okayama University Hospital to avoid amputation and then leads to limb-sparing surgeries in almost all patients. Moreover, the prognosis has been improved marvelously, so that 70?80% of patients result in disease-free. The type of surgery such as resection and reconstruction is usually employed after sufficient discussion with a patient and the patient’s family. We are now providing best treatments incorporating various surgical methods according to the patient age, occupation, and lifestyle, and execute operations.

Joint surgery

The Okayama University Hospital has performed over 2,000 cases of artificial joint surgeries since 1972. Minimally invasive surgery (MIS) total hip replacement and total knee replacement were performed for the first time in Okayama in 2003. Actually, MIS puts less of a burden on the patient’s body and drastically speeds recovery compared with ordinally methods. For that reason, MIS can shorten the postoperative duration of hospitalization to within 2?3 weeks.
Furthermore, a computer navigation system was introduced into 2004 for better operational precision. As of May, 2007, we are the only hospital that executes operations using the navigation system in Okayama Prefecture in the field of artificial joints.
We actively conduct surgery that preserves hip joints for young patients in their 40s or younger using their own bones.
We are striving also for prevention from reliance on artificial joints.

Spinal surgery

We use minimally invasive surgery in lumbar disc herniation or posterior spinal fusion, which lessens the influence on a patient's body by making a small wound using microscopy or endoscopy. Such procedures enable patients' early ambulation, and early social rehabilitation. An implant is installed using navigation to fix a spine in the event of fusion in cervical vertebrae or scoliosis. Thereby an implant dramatically improves precision compared with conventional methods. Surgery has become possible gradually with a smaller wound, even in such cases using implants.

Pediatric orthopaedic surgery

The Okayama University Hospital is conducting treatment for children using their healing ability to the utmost and lessening invasion to the greatest degree possible. We select surgery as the last measure: only when there is no available alternative. The extensive approach to intractable congenital hip dislocation, one operative procedure developed at Okayama University, is such an effective method that medical specialists in pediatric orthopaedic surgery visit from all over Japan for observation. Moreover, elongation of legs using an external fixator improves the quality of life of patients with dwarfism caused by systemic bone diseases.

Sport medicine

The Okayama University Hospital provides support to overall sporting activities for top athletes (of teams such as Tenmaya, Fagiano Okayama, and Yunogo Belle), national and international level competitors, and sport enthusiasts throughout Okayama Prefecture, in cooperation with the Okayama Wide Area Sports Center and the Interactive Sport Education Center of Okayama University. Specifically, we are conducting sport consultation and athletics training in sport activities for health and competitive sport activities. We execute surgery with small wounds using endoscopy and arthroscopy for patients with athletic injuries, so that they can resume participation in sport activities safely and quickly.

Rheumatology and Joint Surgery

Diagnosis, pharmacological and surgical treatment for patients with rheumatoid arthritis has been important theme since the establishment of our department. We are tying early diagnosis of the disease using ultrasonography or MRand provide appropriate and aggressive medication using conventional or biological DMARDs for outpatients. Beginning with the development of Kodama-Yamamoto knee prosthesis, we have been engaged in the developmentand clinical application of our original prosthesis to late stage hip, knee, and elbow joints with favorable long-term clinical results. In addition, our team provide all joint and soft tissue surgery for damaged rheumatoid extremities, including total shoulder and finger arthroplasty, soft tissue reconstruction or small joint arthrodesis for finger deformities, partial or total wrist arthrodesis with/without tendon reconstructions, arthroscopic synovectomy for largjoints, resection or shortening osteotomy for forefoot deformity, ankle arthrodesis, and surgery for peripheral nerve.


We were some of the first practitioners in Japan in 2000 to introduce minimally invasive plate osteosynthesis (MIPO), in which a plate is inserted and fixed percutaneously through small skin incisions without extension of bone fracture. This procedure yields excellent treatment results. Minimally invasive surgery(MIS) bone fracture sections, skins, and soft tissues compared with conventional methods support quick postoperative functional recovery and are advantageous for bone union and infection. Moreover, we conduct surgical therapy actively for pelvic ring fracture and acetabulum fracture, in cases which have undergone conservative treatment and for which treatments have often caused post-traumatic osteoarthritis. Our efforts have demonstrated improving treatment results. We have attained good results for infective pseudarthrosis using various methods such as VAC therapy and external skeletal fixation.