Gull‐wing sign: Acetabular fracture

Ridley, William E; Xiang, Hao; Han, Jason; Ridley, Lloyd J

doi:10.1111/1754-9485.17_12786

Cited by 1 publication

(1 citation statement)

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“…The gull-wing sign was rst described in 1965 by Berkebile et al [1]It describes the appearance of a posterior fracture-dislocation of the hip on the lateral view. The posteriorly displaced fragment of the acetabulum combines with the rest of the acetabulum to create a double curved shadow which resembles the silhouette of a ying seagull [21]. An in uential articles described that the notorious gullwing sign is a medially displaced fracture of the acetabular roof where the medially displaced fragment of the acetabulum and the lateral part together also form a seagull outline on a plain AP radiograph [12].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Clinical Significance of Dome Impaction in Acetabular Fractures

Wang

Fei

et al. 2021

Preprint

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ObjectiveThis study aimed to explore the characteristics of acetabular dome impaction fractures(ADIF) and evaluate the clinical outcomes. MethodsTwenty-two ADIF treated by single surgeon were analyzed. The location and size of impaction was measured through Mimics. Patients’ demographic, characteristic data, surgical data and clinical outcomes were collected. The quality of reduction was assessed using criteria described by Matta. Functional outcomes were evaluated using modified Merle d’Aubigné score and SF-36.Results40.91% of the ADIF located at the posterosuperior quadrant,36.36% of the ADIF located at anterosuperior quadrant, 22.73% of the ADIF involved both areas. The average impacted size was 467.24±308.25mm2. The average percent of the impacted was 17.18±8.94%（impaction size/ lunar surfaces）. At the final follow-up, the rate of excellent and good outcome per Matta’s radiographic grading was 77.27%. The modified Merle d’Aubigné score graded as excellent in 5(22.73%), good in 10(45.45%), fair in 5(22.73%), and poor in 2(9.09%). The mean score of SF-36 was 76.76±20.18. Avascular necrosis (AVN) developed in two patients. Heterotopic ossification(HO) developed in one patient. Sciatic nerve injury developed in one patient. Arthritis developed in one patient. ConclusionsThe ADIF can locate at the posterosuperior quadrant, the anterosuperior quadrant or involved both areas. Understanding the characteristics of the dome impaction can aid surgeons during reduction and fixation. Meanwhile, good to excellent outcomes and a high degree of patient satisfaction can be achieved in majority of the patients.

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Section: Introductionmentioning

confidence: 99%