title: Surgical treatment for fibrous dysplasia of femoral neck with mild but prolonged symptoms: a case series.
abstract: BACKGROUND
  The proximal femur is one of the most common sites involved by fibrous dysplasia. In cases with mild deformity that does not require corrective surgery, occasional patients suffer sustained pain because of repeated microfractures. This study aimed to clarify the outcomes of surgery with autogenous fibular cortical strut grafting and compression hip screw fixation.
  
  
  METHODS
  Since 2002, eight consecutive patients (nine hips) with femoral neck fibrous dysplasia without severe deformity were prospectively treated with autogenous fibular strut grafting and compression hip screw fixation.
  
  
  RESULTS
  Mean age of patients was 35 years. Mean follow-up of patients after surgery was 75 months. Most of the patients could walk with full weight-bearing 2 weeks after surgery. Functional score of lower extremity was significantly improved from 65 % to 95 % (P = 0.001). Femoral neck angle was increased from 127 to 130. Donor site of strut cortical fibula showed good regeneration with β-tricalcium phosphate.
  
  
  CONCLUSIONS
  Autogenous fibular cortical strut grafting and compression hip screw fixation achieved good post-operative function and provided an early return to work for adult patients with fibrous dysplasia of the femoral neck with mild but prolonged symptoms. Morbidity in the donor site of fibula strut is minimal with the use of β-tricalcium phosphate.
authors.affiliation: Department of Orthopaedic Surgery, Nagoya University Graduate School and School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi, 466-8550, Japan. ynishida@med.nagoya-u.ac.jp.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Nishida
authors.affiliation: Department of Orthopaedic Surgery, Nagoya University Graduate School and School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi, 466-8550, Japan. s-tsuku@med.nagoya-u.ac.jp.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Tsukushi
authors.affiliation: Orthopaedic Surgery, Aichi Cancer Center Aichi Hospital, 18 Kuriyado, Kake-machi, Okazaki City, Aichi, Japan. kozohosono@msn.coml.
authors.forename: Kozo
authors.initials: K
authors.lastname: Hosono
authors.affiliation: Orthopaedic Surgery, Aichi Cancer Center Aichi Hospital, 18 Kuriyado, Kake-machi, Okazaki City, Aichi, Japan. nakashima-hiroatsu@tajimi-hospital.jp.|Present address: Orthopaedic Surgery, Gifu Prefectural Tajimi Hospital, 5-161, Maehata, Tajimi, Gifu, Japan. nakashima-hiroatsu@tajimi-hospital.jp.
authors.forename: Hiroatsu
authors.initials: H
authors.lastname: Nakashima
authors.affiliation: Orthopaedic Surgery, Nagoya Memorial Hospital, 4-305 Hirabari, Tenpaku-ku, Nagoya, Japan. yya@hospy.or.jp.
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Yamada
authors.affiliation: Department of Orthopaedic Surgery, Nagoya University Graduate School and School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi, 466-8550, Japan. urakawa@med.nagoya-u.ac.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Urakawa
authors.affiliation: Department of Orthopaedic Surgery, Nagoya University Graduate School and School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi, 466-8550, Japan. n-ishi@med.nagoya-u.ac.jp.
authors.forename: Naoki
authors.initials: N
authors.lastname: Ishiguro
mesh_terms: D000328:Adult; D000368:Aged; D001861:Bone Regeneration / Q000187:drug effects*; D001863:Bone Screws; D002130:Calcium Phosphates / Q000494:pharmacology / Q000627:therapeutic use*; D005260:Female; D005272:Femur Neck / Q000601:surgery*; D005357:Fibrous Dysplasia of Bone / Q000601:surgery*; D005360:Fibula / Q000637:transplantation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control; D011446:Prospective Studies; D055815:Young Adult
chemical_list: D002130:Calcium Phosphates; C485817:beta-tricalcium phosphate