Yuan-Pei Cheng1, Xiao-Kang Cheng2, Yong-Bo Li1, Qian-Ru Zhang3, Hao Feng1, Yi-Han Zhong1, Yan-Bo Zhang4, Han Wu5. 1. Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Jilin, 130033, China. 2. Department of Orthopaedics, Affiliated Hospital of Chengde Medical University, Hebei, 067000, China. 3. Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. 4. Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Jilin, 130033, China. zhangyb2012@jlu.edu.cn. 5. Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Jilin, 130033, China. wu_han@jlu.edu.cn.
Abstract
BACKGROUND: Modular prosthesis fracture, especially distal femoral fracture, is a rare complication of total hip arthroplasty (THA). However, it is catastrophic, and may have a serious impact on the patients. A distal femoral prosthesis fracture in a patient with developmental dysplasia of the hip (DDH) with nonunion at the subtrochanteric osteotomy site has not yet been reported in any literature. This report presents the first such case, with a purpose of analyzing the causes of modular prosthesis fractures and nonunion of the osteotomy area, so as to provide orthopedic surgeons with experience and lessons. CASE PRESENTATION: We report the case of a 52-year-old woman with the distal femoral prosthesis fracture after THA and subtrochanteric osteotomy for Crowe type IV DDH. The patient had severe pain in the left thigh and her activities were limited. Plain radiographs revealed fracture of the left distal femoral prosthesis and nonunion in the subtrochanteric osteotomy region of the left femur. After a revision of the THA, the patient's symptoms were resolved. CONCLUSIONS: A prosthesis fracture combined with nonunion at the subtrochanteric osteotomy site is a rare complication. Modular THA combined with a subtrochanteric osteotomy in the treatment of Crowe type IV DDH should reduce the damage to blood supply and avoid further nonunion of the osteotomy area, which may otherwise lead to modular prosthesis fractures. A detailed preoperative plan and suitable rehabilitation program may help minimize the occurrence of subtrochanteric osteotomy nonunion and reduce complications, including femoral prosthesis fractures, in patients with DDH.
BACKGROUND: Modular prosthesis fracture, especially distal femoral fracture, is a rare complication of total hip arthroplasty (THA). However, it is catastrophic, and may have a serious impact on the patients. A distal femoral prosthesis fracture in a patient with developmental dysplasia of the hip (DDH) with nonunion at the subtrochanteric osteotomy site has not yet been reported in any literature. This report presents the first such case, with a purpose of analyzing the causes of modular prosthesis fractures and nonunion of the osteotomy area, so as to provide orthopedic surgeons with experience and lessons. CASE PRESENTATION: We report the case of a 52-year-old woman with the distal femoral prosthesis fracture after THA and subtrochanteric osteotomy for Crowe type IV DDH. The patient had severe pain in the left thigh and her activities were limited. Plain radiographs revealed fracture of the left distal femoral prosthesis and nonunion in the subtrochanteric osteotomy region of the left femur. After a revision of the THA, the patient's symptoms were resolved. CONCLUSIONS: A prosthesis fracture combined with nonunion at the subtrochanteric osteotomy site is a rare complication. Modular THA combined with a subtrochanteric osteotomy in the treatment of Crowe type IV DDH should reduce the damage to blood supply and avoid further nonunion of the osteotomy area, which may otherwise lead to modular prosthesis fractures. A detailed preoperative plan and suitable rehabilitation program may help minimize the occurrence of subtrochanteric osteotomy nonunion and reduce complications, including femoral prosthesis fractures, in patients with DDH.
Entities:
Keywords:
Case report; Developmental dysplasia of the hip; Nonunion; Prosthesis fracture; Total hip arthroplasty
Authors: Hakan Sofu; Vedat S Ahin; Sarper Gürsu; Timur Yildirim; Ahmet Issin; Nizamettin Koçkara Journal: Hip Int Date: 2013-06-28 Impact factor: 2.135