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Division of Bone and Joint Trauma
  Nonunion of bone fracture

  Nonunion of bone fracture, also called bone unhealing, refers to the termination of bone fracture healing in some conditions. Pseudoarthrosis occurs at the fracture, or the fracture becomes absorbed and dystrophic, resulting in an increased fracture gap. Radiographs show that the fracture end marrow cavity becomes closed, bone terminals become hypertrophied, or the fracture gap becomes widened.The failure of further treatment will cause the unhealing fracture. Nonunion is a common fracture

  complication that most frequently involves, femoral neck, femoral shaft, tibia, and ankle joint.

  Arthroscopic bone grafting

  In the case of nonunion, the fractured site has a poor blood supply whilst the conventional large incision results in extensive dissection of soft tissues and periostea and further interrupts the blood supply to the fracture. Minimally invasive bone grafting allows the accurate intraoperative positioning, in which prepared bone graft can be implanted into the fracture under the arthroscopic monitoring,with an appropriate compression. The surgical field only involves the fracture, which avoids extensivedissection of muscles, ligaments, and periostea and maximizes the protection of fracture blood supply.

  Surgical indications:

  1. Bone unhealing present for over 6 months;

  2. Ineffective previous internal or external fixation;

  3. Patients complicated with diabetes mellitus or other metabolic and nutritional disorders;

  4. Patients with an unhealing incision due to the concurrent peripheral nerve injury.

  Division of Plastics and Orthopaedics

  1) Genu varum and genu valgum correction

  Genu varum and genu valgum not only disrupt the normal configuration but also, more importantly destruct the normal biomechanics of knee joint. The biomechanical stress increases on one side of the joint whilst it decreases on the other side relatively. The relatively high weightbearing on one side of the joint will result in secondary osteoarthritis and articular instability. To avoid the above outcomes, correction must be given prior to the occurrence of knee symptom to restore the normal weight-bearing line and return the healthy configuration.Preoperative appearance Postoperative appearance Postoperative radiograph

  2) Hip joint replacement

  The clinical efficacy of artificial hip joint replacement has been documented in the recent half century as a definite and reliable therapeutic modality. The primary purpose of artificial joint replacement is to attenuate joint pain, correct malformation, and restore or improve joint motility.It was previously thought that 60 to 75 was the optimal age for whole hip or knee joint replacement.However, in the recent decade, the indication of joint replacement has been extended to older and

  younger patients.

  Surgical indications:

  1. Osteoarthritis

  2. Femoral head necrosis

  3. Femoral neck fracture

  4. Rheumatoid arthritis

  5. Traumatic arthritis

  6. Benign or malignant bone tumors

  7. Ankylosing spondylitis

  3) Knee joint replacement

  Knee joint replacement is a promising modality for the treatment of serious knee joint disorders,which can relieve patients of long-time sufferings. With the assistance of advanced instruments and technologies, the Division has successfully performed artificial knee joint replacements on patients with serious arthritis and rheumatoid arthritis. The replacement can relieve patients of pain, improvetheir mobility, correct joint malformation, and improve the quality of life.

  Surgical indications:

  1. Knee osteoarthritis; 2. Rheumatoid arthritis; 3. Traumatic arthritis

  4. Knee malformation or instability; 5. Peri-articular tumors

  4) Minimally invasive lysis of gluteal muscle contractures

  Patients with gluteal muscle contractures usually exhibit`frog-foot¨sign, `sharp buttock¨sign,snapping hip, who can neither alice his/her legs nor crouch with his/her knees side by side. In serious cases, patients suffer from asymmetric lower limbs complicated with pelvic malformation.Conventional procedure requires an approximately 10-cm incision. In contrast, the Division has successfully performed arthroscopic lysis of gluteal muscle contractures, which requires only two 0.5cm incisions.

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