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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

From: Model-based roentgen stereophotogrammetric analysis using elementary geometrical shape models: 10 years results of an uncemented acetabular cup component

Fig. 4

Calculated acetabular cup migration [mm] at six, 12 weeks, six, 12, 24, 60 and 120 months follow-up along (a) medio-lateral, b cranio-caudal and (c) anterior-posterior direction. d Mean ± SD value for each patient, classified at 24 months follow up according to Pijls et al. [25] as an acceptable cup (blue graph; migration < 0.2 mm represented by black dotted line) and cup at risk (green graph; migration between 0.2 mm and 1.0 mm represented by black dotted line). Red dotted line indicates threshold (> 1.76 mm) for cranial acetabular cups migration at risk according to Nieuwenhuijse et al. [24]

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