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The relationship between femoral neck fracture in adult and avascular necrosis and nonunion: A retrospective study.

ABSTRACT: Background:One of the most serious sequelae of femoral neck fractures (FNFs) is avascular necrosis (AVN), and this complication translates to significant morbidity and mortality. This study was conducted to determine the relationship between the etiologies and management of FNFs at our institution and the development of AVN or nonunion. Materials and methods:This study was a retrospective medical chart review of all adult patients admitted and managed for FNF. Results:There were a total of 69 FNF patients reviewed. FNF was caused by a fall in 37 patients (53.6%), a road traffic accident in 16 (23.2%), motorcycle and motorbike accidents in 8 (11.6%), and heavy exercise in 8 (11.6%). Twenty-four patients (34.8%) had fixation within 24?h of injury, and 45 (65.2%) went more than 24?h before fixation. The mean RUSH score at 6 months was 21.4?±?5.1. There were 4 patients (5.8%) with a collapsed FNF and 4 patients (5.8%) had a nonunion FNF. AVN was documented in 12 patients (17.4%). Of the 12 patients who had AVN, 8 (66.7%) received fixation within 24?h from the time of the injury, whereas only 4 (33.3%) received fixation more than 24?h after the injury. There was a significant negative correlation between the time of fixation and AVN. Conclusion:We report a 17.4% incidence of AVN over 10 years in patients managed with FNF. AVN was found to be significantly correlated with the mode of injury (fall and RTA among younger male patients).

SUBMITTER: Koaban S

PROVIDER: S-EPMC6357682 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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The relationship between femoral neck fracture in adult and avascular necrosis and nonunion: A retrospective study.

Koaban Saeed S Alatassi Raheef R Alharbi Salman S Alshehri Mansour M Alghamdi Khalid K

Annals of medicine and surgery (2012) 20190126

<h4>Background</h4>One of the most serious sequelae of femoral neck fractures (FNFs) is avascular necrosis (AVN), and this complication translates to significant morbidity and mortality. This study was conducted to determine the relationship between the etiologies and management of FNFs at our institution and the development of AVN or nonunion.<h4>Materials and methods</h4>This study was a retrospective medical chart review of all adult patients admitted and managed for FNF.<h4>Results</h4>There ...[more]

PMID: 30733863

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Project description:ObjectiveTo investigate associations between femoral head necrosis (FHN) and injury to the retinaculum of Weitbrecht in patients with femoral neck fractures who had undergone initial trials of either closed reduction or direct open reduction.MethodsThis prospective observational study included 110 patients with displaced femoral neck fractures admitted to the Sixth People's Hospital Affiliated to Shanghai Jiaotong University and Shanghai Tongji Hospital between January 2008 and May 2017. Among these, 25 patients underwent initial closed reductions, and 85 patients underwent an open reduction directly. Watson-Jones anterolateral approach was used during the surgery for injury to the retinaculum of Weitbrecht, and FHN was assessed as a surgical outcome. The severity of injury to the retinaculum of Weitbrecht was evaluated using a scoring system developed by our surgical team. Follow-up was at least 24 months.ResultsThe initial closed reduction treatment group had significantly higher total scores of injury to the retinaculum of Weitbrecht (6.24 ± 2.20 vs 4.62 ± 2.12, p = 0.009) compared to the open reduction group. High total scores were significantly associated with initial trials of closed reduction treatment, especially for the broken and released injury to the superior and anterior retinacula (both p = 0.01). Twenty-six patients experienced FHN postoperatively, with mean onset time of 19.42 ± 3.87 months. FHN was significantly associated with the severity of injury to the retinaculum of Weitbrecht (p < 0.001) at the superior, anterior, and inferior retinacula. FHN was significantly associated with injury to the retinaculum of Weitbrecht in females.ConclusionsFemoral neck displacement in patients treated initially with closed reduction is associated with subsequent injury to the retinaculum of Weibrecht, which may lead to FHN. Severity of injury to the retinaculum of Weibrecht may be used as a biomarker to evaluate bone necrosis in patients with femoral neck fractures.

Project description:ObjectiveFemoral neck fracture (FNF) is a common clinical trauma with high mortality and disability rates. Furthermore, its incidence increases exponentially with increasing age. Existing classifications have some disadvantages. Thus, this study aimed to establish a novel typing system for FNF.MethodsWe retrospectively analyzed all adult patients with FNF admitted to our hospital between December 2015 and November 2017 for cannulated screw internal fixation. The study population was divided into the femoral varus offset group (VAR) and the valgus offset group (VAL). The data collected included sex, age, affected side, injury mode, body mass index, complications, pelvic incidence (PI), hip deflection angle (HDA), combined deflection angle (CDA), and neck shaft angle. Statistical analysis was conducted to determine the correlation between complications and deviation angles. A novel typing system was developed and compared with the Garden classification to detect its superiority.ResultsA total of 108 patients were recruited, with 59 patients in the VAR and 49 patients in the VAL groups. The incidence of complications in the VAR group was significantly higher than that in the VAL group (P < 0.05). Moreover, there were more male participants in the VAR group. Compared with the VAL group, the VAR group had significantly higher PI, HDA, and CDA (P < 0.05). The CDA classification (CDAC) was defined, with CDA as the main criterion and HDA as the supplementary criterion. Furthermore, there was a hierarchical correlation between the actual incidence of complications and the typing level, which was increased in CDAC but not in the Garden classification. This showed that CDAC was more accurate.ConclusionA novel typing system, CDAC, for FNF was established, which was more accurate than the Garden classification. We suggest combining CDAC and Garden classifications for the preoperative diagnosis, treatment selection, and prognostic evaluation for patients with FNF.

Dataset Information

The relationship between femoral neck fracture in adult and avascular necrosis and nonunion: A retrospective study.

Publications

The relationship between femoral neck fracture in adult and avascular necrosis and nonunion: A retrospective study.

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