title: Extraction of well-fixed extended porous-coated cementless stems using a femoral longitudinal split procedure.
abstract: We present a technique of posterior femoral longitudinal split (FLS) osteotomy. This technique allows the expansion of the metaphyseal-diaphyseal region of the proximal femur facilitating extraction of well-fixed extended porous-coated stems. The extractions were performed using extended transfemoral osteotomy (ETO) and FLS osteotomy between June 2002 and March 2014. The study group, which comprised patients with well-fixed extended porous-coated stems, consisted of two men and ten women with an average age of 63.2 years. The stem was successfully removed using the FLS procedure in 8 of the 10 hips. Reimplantation surgery was performed in 6 of the 12 hips with ARMD, periprosthetic infection, or metallosis. This FLS technique may allow the easy removal of well-fixed extended porous-coated stems and become an alternative method for the removal of all stems.
authors.affiliation: Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Sapporo, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nagoya
authors.affiliation: Department of Orthopedic Surgery, Sapporo Medical University, South 1 West 16, Chuo-Ku Sapporo, 060-8543 Japan.
authors.forename: Mikito
authors.initials: M
authors.lastname: Sasaki
authors.affiliation: Department of Orthopedic Surgery, Sapporo Medical University, South 1 West 16, Chuo-Ku Sapporo, 060-8543 Japan.
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Kaya
authors.affiliation: Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Sapporo, Japan.
authors.forename: Shunichiro
authors.initials: S
authors.lastname: Okazaki
authors.affiliation: Department of Orthopedic Surgery, Sapporo Medical University, South 1 West 16, Chuo-Ku Sapporo, 060-8543 Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Tateda
authors.affiliation: Department of Orthopedic Surgery, Sapporo Medical University, South 1 West 16, Chuo-Ku Sapporo, 060-8543 Japan.
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Yamashita
keywords: Extended porous coated; Extraction of femoral stem; Hip joints; Removal of stem; Split osteotomy; Total hip arthroplasty