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Stress fractures of the femoral neck in adults: an observational study on epidemiology, treatment, and reoperations from the Swedish Fracture Register
Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Ortopedi.ORCID-id: 0000-0003-4615-7276
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2022 (Engelska)Ingår i: Acta Orthopaedica, ISSN 1745-3674, E-ISSN 1745-3682, Vol. 93, s. 413-416Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

BACKGROUND AND PURPOSE: Stress fractures of the femoral neck (sFNFs) are uncommon injuries. Studies on sFNFs are rare. We describe the demographics, classification, treatment, reoperation rates, and mortality in a cohort of sFNF patients from the Swedish Fracture Register (SFR).

PATIENTS AND METHODS: We included 146 patients ≥ 18 years of age with an sFNF registered in the SFR between 2011 and 2020. The cohort was linked with the Swedish Arthroplasty Register and reviewed using medical records and radiographs. We assessed the presence of disorders of bone remodeling, duration of symptoms, fracture classification, treatment, reoperations, and mortality.

RESULTS: The mean age was 58 years (21-96), 75% were women and the median duration of symptoms was 23 days (1-266). 40% of patients had disorders of bone remodeling. 54% were undisplaced (uFNF), 30% displaced (dFNF), and 16% basicervical (bFNF). 14% of patients < 60 years were treated nonoperatively, by internal fixation (IF) in 77% and by arthroplasty in 10%. Patients ≥ 60 years were treated nonoperatively in 10%, IF in 40%, and arthroplasty in 49%. Nonoperative treatment was reserved for uFNFs or bFNFs, resulting in 35% receiving late surgery. The overall secondary or late surgery rate was 19%. Mortality was 2% at 90 days and increased to 3% at 1 year.

INTERPRETATION: sFNF has a biphasic age distribution. One-third of patients presented with a displaced FNF and those managed nonoperatively for an undisplaced sFNF were at risk of late surgery. The mortality rates for patients with these injuries was low.

Ort, förlag, år, upplaga, sidor
Medical Journals Sweden , 2022. Vol. 93, s. 413-416
Nyckelord [en]
Arthroplasty, Femoral Neck Fracture, Fractures, Hip, Stress fracture
Nationell ämneskategori
Ortopedi
Identifikatorer
URN: urn:nbn:se:umu:diva-193840DOI: 10.2340/17453674.2022.2460ISI: 000790823500062PubMedID: 35417029Scopus ID: 2-s2.0-85128114910OAI: oai:DiVA.org:umu-193840DiVA, id: diva2:1652042
Forskningsfinansiär
Region VästerbottenRegion SkåneTillgänglig från: 2022-04-14 Skapad: 2022-04-14 Senast uppdaterad: 2023-09-05Bibliografiskt granskad

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Sundkvist, JonasMukka, Sebastian

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