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Title: Functional, radiological, and quality of life outcome of unstable acetabular fracture with quadrilateral plate involvement at a tertiary care center in Jakarta, Indonesia.
Author: Ardiansyah A, Dilogo IH, Gunawan B, Oesman I, Herlambang D.
Journal: Eur J Orthop Surg Traumatol; 2024 Feb; 34(2):1131-1140. PubMed ID: 37966556.
Abstract:
INTRODUCTION: Unstable acetabular fracture remains a complex fracture that requires technically demanding surgery for orthopedic surgeons. Quadrilateral plate (QP) fractures of the acetabulum are a challenging group of acetabular fractures to manage. However, the literature regarding the management of these injuries are limited. The QP is a relatively thin medial wall of the acetabulum and intra-articular; thus, anatomical reduction and stable fixation are required for satisfactory outcome. This study aims to determine the functional, radiological, and quality of life outcome of unstable acetabular fracture with QP involvement. METHODS: This was a retrospective cohort study conducted at Cipto Mangunkusumo General Hospital during the period of 2010-2020. Patients with unstable acetabular fractures with and without QP involvement were included in this study. They were followed up postoperatively at 1, 6, and 12 months. Functional outcome was assessed using the Harris Hip Score (HHS), Merle D'Aubigne, and Oxford Hip Score (OHS); while radiology outcome was assessed using Matta Outcome Grading; and quality of life was assessed using the SF-36. RESULTS: This study involved 53 subjects with a median age was 29 (18-75) years of age. Twenty-eight (52.8%) subjects had unstable acetabular fracture with QP involvement. Twenty-five (47.2%) subjects had unstable acetabular fracture without QP involvement. Twenty-five (47.2%) subjects were fixed using quadrilateral hook plate, 3 (5.7%) with infrapectineal plate, 10 (18.8%) with posterior column plate, and 15 (28.3%) with suprapectineal plate. The median intraoperative bleeding in those with unstable acetabular fracture with QP involvement was 600 (300-4000) ml, which was higher than those without QP involvement (400 [100-1700] ml). Those with QP involvement achieved anatomical reduction in 20 (71.4%) subjects. Whereas, the subjects without QP involvement achieved anatomical reduction 23 patients (92%). Subjects with QP involvement had significantly lower functional, radiological, and quality of life outcomes compared to those without quadrilateral plate involvement based on Harris Hip Score (p = 0.046), Merle D'Aubigne (0.001), Oxford Hip Score (0.001), Matta Outcome Grading (0.004), and SF-36 (0.001). Patients with quadrilateral hook plate showed no significant functional, and radiological outcome difference compared to patients with infrapectineal plate based on Harris Hip Score (p = 0.582), Merle D'Aubigne (0.698), Oxford Hip Score (1.000), and Matta Outcome Grading (1.000). In addition, we also found no significant functional, radiological, and quality of life outcome difference between posterior column plate and suprapectineal plate group based on Harris Hip Score (p = 0.200), Merle D'Aubigne (0.643), Oxford Hip Score (0.316), Matta Outcome Grading (1.000), and SF-36 (0.600). CONCLUSIONS: Patients with unstable acetabular fracture with quadrilateral plate involvement subject had significantly lower functional, radiological, and quality of life outcomes compared to those without quadrilateral plate involvement. Both quadrilateral hook and infrapectineal plates demonstrated non-significant functional and radiological outcomes difference. Posterior column plate also resulted in the same functional, radiological, and quality of life outcome compared with suprapectineal fixation.

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