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Clinical outcomes of using contralateral side laterally bent intramedullary nails in atypical femur fractures with femoral bowing

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Abstract
Introduction This study aimed to evaluate the clinical outcomes of using contralateral-side laterally bent intramedullary
nails (IMNs) in bowed atypical femur fractures (AFFs).
Materials and methods We retrospectively reviewed bowed AFFs treated with contralateral-side laterally bent IMNs. In
total, 20 patients with 25 cases of AFFs were included. Surgical outcomes including bone union time, complications, femoral
bowing, and leg length discrepancy (LLD) were evaluated. We evaluated the surgical safety of performing contralateral-side
intramedullary nailing with its intraoperative and postoperative complications and compared the LLD.
Results The average age was 76.8 years (range 67?86 years), and all of patients were female. There were 10 cases of complete
AFFs and 15 cases of incomplete AFFs. Fourteen patients (70%) had a history of bisphosphonate (BP) use with an average
of 74.5 months of its use. In the complete AFF cases, reduction of the fractures was tried to restore the patients’ normal
anatomical geometry. The average lateral gap was 0.6 mm (0?1 mm), and the average medial gap was 1.6 mm (1?3 mm).
All cases achieved bone union without secondary intervention. There were no intraoperative fractures or postoperative
complications. The average bone union time was 22.0 weeks and 9.2 weeks in complete and incomplete AFFs, respectively.
The average preoperative femoral bowing seen in the coronal and sagittal planes was 10.1° and 16.1°, respectively, while the
average postoperative bowing was 6.6° and 11.3°, respectively. The average change of angle was 3.5° in the coronal plane
and 4.8° in the sagittal plane. The mean change of LLD was 5.7 mm.
Conclusion The use of contralateral-side laterally bent IMNs in treating bowed femurs showed excellent clinical outcomes
without complications. In severely bowed femurs, this technique can be safe and useful.
Author(s)
손욱진윤재연김지완
Issued Date
2021
Type
Article
Keyword
Bone surgeryClinical outcomesFracturesMedicineMedicine & Public HealthOrthopaedic SurgeryOrthopedicsSurgical outcomesTrauma
DOI
10.1007/s00402-020-03524-1
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8668
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2427293197&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Clinical%20outcomes%20of%20using%20contralateral%20side%20laterally%20bent%20intramedullary%20nails%20in%20atypical%20femur%20fractures%20with%20femoral%20bowing&offset=0&pcAvailability=true
Publisher
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
Location
독일
Language
한국어
ISSN
0936-8051
Citation Volume
141
Citation Number
8
Citation Start Page
1291
Citation End Page
1296
Appears in Collections:
Medicine > Medicine
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