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Updated: Jan 28, 2026

Orthopedic Robot-Assisted Femoral Neck System in the Treatment of Femoral Neck Fracture
Published on: March 3, 2023
The Effect of Subcutaneous Fat Tissue Length and Area on Postoperative Wound Drainage in Patients Undergoing
Mehmet Önüt1, Olgun Bingöl1, Güzelali Özdemir1
1Department of Orthopaedics and Traumatology, Ankara Bilkent City Hospital, Ankara, Türkiye.
Background:
The aim of this study was to investigate whether subcutaneous adipose tissue (SAT) length by radiograph and SAT area by computed tomography (CT) before femoral neck fracture surgery are associated with surgical wound drainage (SWD) in elderly female patients.
Methods:
We prospectively evaluated 87 female patients who underwent hemiarthroplasty surgery at a level 1 trauma center between May 2024 and January 2025. The patients were classified into 2 groups: those with SWD within 90 days after surgery (group 1) and those without (group 2). SAT area and SAT length were evaluated using CT and hip radiograph imaging, respectively, and the differences between the 2 groups were analyzed. Additionally, we compared demographic data, body mass index, the Charlson comorbidity index, monocyte-to-lymphocyte ratio, neutrophil-to-lymphocyte ratio, neutrophil-to-albumin ratio, albumin values and surgical incision length.
Results:
No statistically significant difference in the length of the peritrochanteric SAT was found between fractured and nonfractured hips across the groups. However, CT scans revealed that the SAT area around the greater trochanter was 102.5 cm2 (range: 25-175.4) in group 1 and 71.1 cm2 (range: 20-190) in group 2, indicating a statistically significant difference (P < .001). Similarly, the SAT area around the anterior superior iliac spine was found to be 132.4 cm2 (81.6-172 cm2) in group 1 and 82.3 cm2 (17-179 cm2) in group 2; this difference was also statistically significant (P < .001).
Conclusions:
The area of SAT is an effective predictor of postoperative SWD in elderly female patients undergoing hemiarthroplasty due to a femoral neck fracture.
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