PurposeUtilization of 3D-printed patient-specific surgical guides is a promising navigation approach for orthopedic surgery. However, navigation errors can arise if the guide is not correctly positioned at the planned bone location, compromising the surgical outcome. Quantitative measurements of guide positioning errors are rarely reported and have never been related to guide...
, University of Amsterdam , Amsterdam , The Netherlands 1 J. G. G. Dobbe Purpose In corrective osteotomy of the distal radius, patient-specific 3D printed surgical guides or optical navigation systems are often
Purpose3D-printed patient-specific instruments (PSIs), such as surgical guides and implants, show great promise for accurate navigation in surgical correction of post-traumatic deformities of the distal radius. However, existing costs of computer-aided design and manufacturing process prevent everyday surgical use. In this paper, we propose an innovative semiautomatic methodology...
Academic Medical Center, University of Amsterdam , 1100 DE Amsterdam , The Netherlands 3 J. G. G. Dobbe 4 A. J. Kievit 5 L. Blankevoort 6 G. J. Streekstra Purpose Malalignment of implants is a major source
of Amsterdam , Amsterdam, The Netherlands 1 J. G. G. Dobbe (&) G. J. Streekstra Department of Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam , Amsterdam, The
, Amsterdam, The Netherlands 1 J. G. G. Dobbe (&) G. J. Streekstra Department of Medical Physics, Academic Medical Center, University of Amsterdam , Room no. L0-113-3, Meibergdreef 9, 1105 AZ Amsterdam, The ... Netherlands 2 J. G. G. Dobbe B. Atasever C. Ince Department of Physiology, Academic Medical Center, University of Amsterdam , Amsterdam, The Netherlands This study describes a new method for analyzing
Use of patient-specific fixation plates is promising in corrective osteotomy of the distal radius. So far, custom plates were mostly shaped to closely fit onto the bone surface and ensure accurate positioning of bone segments, however, without considering the biomechanical needs for bone healing. In this study, we investigated how custom plates can be optimized to stimulate...
External fixation of the elbow requires identification of the elbow rotation axis, but the accuracy of traditional landmarks (capitellum and trochlea) on fluoroscopy is limited. The relative distance (RD) of the humerus may be helpful as additional landmark. The first aim of this study was to determine the optimal RD that corresponds to an on-axis lateral image of the elbow. The...
The correction of multiplanar deformity is challenging. We describe preoperative 3-D planning and treatment of a complex tibia malunion using an oblique single-cut rotation osteotomy to correct deformity parameters in the sagittal, coronal and transverse plane. At 5 years postoperatively, the patient ambulates without pain with a well-aligned leg.
In corrective osteotomy of the radius, detailed preoperative planning is essential to optimising functional outcome. However, complex malunions are not completely addressed with conventional preoperative planning. Computer-assisted preoperative planning may optimise the results of corrective osteotomy of the radius. We analysed the pre- and postoperative radiological result of...
, University of Amsterdam , Amsterdam, The Netherlands 1 J. G. G. Dobbe (&) G. J. Streekstra Medical Imaging Section, Department of Biomedical Engineering and Physics, Academic Medical Center, University of
PurposeCoracoid fractures represent approximately 3–13% of all scapular fractures. Open reduction and internal fixation can be indicated for a coracoid base fracture. This procedure is challenging due to the nature of visualization of the coracoid with fluoroscopy. The aim of this study was to develop a fluoroscopic imaging protocol, which helps surgeons in finding the optimal...
