期刊
OSTEOPOROSIS INTERNATIONAL
卷 -, 期 -, 页码 -出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00198-022-06581-x
关键词
Acetabular protrusion; Autofusion; Ectopic calcification; IFITM5; Type V osteogenesis imperfecta
资金
- Shenzhen Key Medical Discipline Construction Fund [SZXK077]
- Guangdong Basic and Applied Basic Research Fund [2022A1515010987]
- Hong Kong Health and Medical Research Fund [07181676]
Type V osteogenesis imperfecta is characterized by radial head dislocation, calcification of interosseous membrane, and hyperplastic callus. This study characterized the clinical features of 28 type V OI patients and discussed possible surgical solutions.
A Summary Type V osteogenesis imperfecta (OI) is a form of OI characterized by radial head dislocation (RHD), calcification of interosseous membrane (CIM), and hyperplastic callus (HPC). In this study, we characterized the clinical features of 28 type V OI patients. We presented that dysfunctions of elbow, hip joint, and abnormal epiphyseal growth plate were associated with ectopic calcification and summarized the history of HPC progression and treatment.Introduction The current study aims to systematically characterize the skeletal phenotypes of patients with type V OI and suggested possible surgical solutions.Methods A total of 28 patients were admitted for inpatient care at The Hong Kong University-Shenzhen Hospital diagnosed with type V OI (either clinically diagnosed or genetically confirmed with the IFITM5 c.-14C > T mutation).Results Prevalence of type V radiological features was comparable to previous literatures (RHD, 100%; CIM, 100%; HPC, 44%; and scoliosis, 50%). Novel skeletal phenotypes were presented including extension of coronoid process, acetabular labrum, acetabular protrusion, spontaneous autofusion of the hip, bulbous epiphysis, and popcorn calcification. Significant increase in BMD was observed in patients with bisphosphonate treatment. Twenty-five percent (3/12) of patients with preoperative use of indomethacin developed HPC postoperatively, and HPCs were absorbed in 2 young patients 2 years later.Conclusion This retrospective study summarized the clinical features and highlighted the abnormalities in elbow, hip joint, and growth plate in type V OI patients. Our study contributed to a more comprehensive clinical spectrum of type V OI. We also characterized the natural progression of HPC formation and resorption in patients in different ages. The use of bisphosphonate treatment is effective in improving bone mineral density in type V OI patients, and whether indomethacin can reduce incidence of HPC formation deserves further investigation.
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