Scaphoid Reconstruction

2020 ◽  
Vol 51 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Cristian S. Borges ◽  
Paulo H. Ruschel ◽  
Milton B. Pignataro
Keyword(s):  
Scaphoid Reconstruction

Titanium template for scaphoid reconstruction

2014 ◽  
Vol 40 (5) ◽  
pp. 526-533 ◽  
Author(s):  
M. Haefeli ◽  
D. J. Schaefer ◽  
R. Schumacher ◽  
M. Müller-Gerbl ◽  
P. Honigmann
Keyword(s):  
Clinical Case ◽  
Three Dimensional ◽  
Level Of Evidence ◽  
Non Union ◽  
Intraoperative Control ◽  
Operative Planning ◽  
Dimensional Shape ◽  
Template Design ◽  
Scaphoid Reconstruction ◽  
Three Dimensional Shape

Reconstruction of a non-united scaphoid with a humpback deformity involves resection of the non-union followed by bone grafting and fixation of the fragments. Intraoperative control of the reconstruction is difficult owing to the complex three-dimensional shape of the scaphoid and the other carpal bones overlying the scaphoid on lateral radiographs. We developed a titanium template that fits exactly to the surfaces of the proximal and distal scaphoid poles to define their position relative to each other after resection of the non-union. The templates were designed on three-dimensional computed tomography reconstructions and manufactured using selective laser melting technology. Ten conserved human wrists were used to simulate the reconstruction. The achieved precision measured as the deviation of the surface of the reconstructed scaphoid from its virtual counterpart was good in five cases (maximal difference 1.5 mm), moderate in one case (maximal difference 3 mm) and inadequate in four cases (difference more than 3 mm). The main problems were attributed to the template design and can be avoided by improved pre-operative planning, as shown in a clinical case. Level of evidence: V

scholarly journals Simplified scaphoid reconstruction technique with Zaidemberg's vascularized radial graft

2012 ◽  
Vol 98 (4) ◽  
pp. S66-S72 ◽  
Author(s):  
Y. Saint Cast ◽  
B. Césari ◽  
G. Dagregorio ◽  
M. Le Bourg ◽  
A. Gazarian ◽  
...  
Keyword(s):  
Reconstruction Technique ◽  
Scaphoid Reconstruction

Outcomes of the Medial Femoral Trochlea Osteochondral Free Flap for Proximal Scaphoid Reconstruction

2020 ◽  
Vol 45 (4) ◽  
pp. 317-326.e3 ◽  
Author(s):  
Mitchell A. Pet ◽  
Patrick E. Assi ◽  
Imran S. Yousaf ◽  
Aviram M. Giladi ◽  
James P. Higgins
Keyword(s):  
Free Flap ◽  
Femoral Trochlea ◽  
Scaphoid Reconstruction

Gadolinium-enhanced preoperative MRI scans as a prognostic parameter in scaphoid nonunion

2010 ◽  
Vol 36 (1) ◽  
pp. 23-28 ◽  
Author(s):  
K. Megerle ◽  
H. Worg ◽  
G. Christopoulos ◽  
R. Schmitt ◽  
H. Krimmer
Keyword(s):  
Screw Fixation ◽  
Proximal Fragment ◽  
Scaphoid Nonunion ◽  
Mri Scan ◽  
Intraoperative Bleeding ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Mri Scans ◽  
Scaphoid Reconstruction ◽  
Contrast Enhanced Mri

The purpose of this prospective study was to correlate preoperative gadolinium-enhanced MRI scans with intraoperative bleeding of the proximal fragment and postoperative union in a series of consecutive patients with established scaphoid nonunions. In 60 patients (6 females, 54 males) with a mean age of 29 years, scaphoid perfusion was judged preoperatively as normal, impaired or absent using a gadolinium-enhanced MRI scan. Scaphoid reconstruction was performed using a nonvascularized bone graft and screw fixation. Perfusion of the proximal fragment was assessed intraoperatively in 49 of 60 patients; compromised or absent vascularity was predicted with a specificity of 90% by contrast-enhanced MRI. However, there was no significant correlation between preoperative MRI assessment of vascularity and subsequent union of the scaphoid.

scholarly journals Proximal Scaphoid Pole Reconstruction Utilizing Ipsilateral Proximal Hamate Autograft

Hand ◽  
2016 ◽  
Vol 11 (4) ◽  
pp. 495-499 ◽  
Author(s):  
Bassem Elhassan ◽  
Mohamed Noureldin ◽  
Sanjeev Kakar
Keyword(s):  
Avascular Necrosis ◽  
Vascular Supply ◽  
Surgical Reconstruction ◽  
Scaphoid Nonunion ◽  
Proximal Pole ◽  
Secondary Fragmentation ◽  
Scapholunate Instability ◽  
Scaphoid Reconstruction

Background: Fractures of the proximal pole of the scaphoid can be difficult to heal because of its limited vascular supply. Furthermore, nonunion with avascular necrosis and secondary fragmentation makes surgical reconstruction a challenging procedure. Method: We describe a technique and report the outcome of a proximal hamate autograft to treat a proximal pole scaphoid nonunion with avascular necrosis. Results: At 3.5 years post reconstruction, the patient remains asymptomatic with union of his scaphoid reconstruction without any evidence of scapholunate instability. Conclusion: Proximal hamate autograft is a useful technique for addressing proximal pole scaphoid nonunions with avascular necrosis.

scholarly journals Scaphoid reconstruction with vascularized bone grafts from the distal radius

2016 ◽  
Vol 01 (01) ◽  
pp. 50-53 ◽  
Author(s):  
Konstantinos Malizos ◽  
Zoe Dailiana ◽  
Sokratis Varitimidis ◽  
Loukia Papatheodorou
Keyword(s):  
Distal Radius ◽  
Bone Grafts ◽  
Scaphoid Reconstruction ◽  
Vascularized Bone

scholarly journals The Effect of Proximal Hamate Osteotomy on Carpal Kinematics for Reconstruction of Proximal Pole Scaphoid Nonunion With Avascular Necrosis

Hand ◽  
2018 ◽  
Vol 15 (3) ◽  
pp. 371-377 ◽  
Author(s):  
Sanjeev Kakar ◽  
Ryan M. Greene ◽  
Timothy Hewett ◽  
Andrew R. Thoreson ◽  
Alexander W. Hooke ◽  
...  
Keyword(s):  
Motion Tracking ◽  
Wrist Flexion ◽  
Proximal Pole ◽  
Phase Tracking ◽  
3 Dimensional ◽  
Flexor Carpi Ulnaris ◽  
Flexion Extension ◽  
Carpal Kinematics ◽  
Fresh Frozen ◽  
Scaphoid Reconstruction

Background: The purpose of this study is to determine the effects of proximal hamate transfer for proximal pole scaphoid reconstruction upon carpal kinematics. Methods: Eight fresh-frozen cadaveric wrists underwent evaluation of their radiocarpal and midcarpal motion after proximal hamate osteotomy. A wrist simulator was used to apply cyclical tension to the flexor carpi ulnaris (FCU), flexor carpi radialis (FCR), extensor carpi ulnaris (ECU), and extensor carpi radialis longus and brevis stitched together (ECR). Kinematic motion was captured using Moiré Phase Tracking 3-dimensional motion-tracking sensors (MPT, Metria Innovation, Inc, Milwaukee, Wisconsin) to evaluate the lunocapitate and scapholunate angles for each condition. Results: During wrist flexion-extension and radial-ulnar deviation, there were no statistically significant differences about the lunocapitate or scapholunate axis between the intact and post-hamate osteotomy conditions. Conclusions: The harvest of the proximal hamate for proximal pole scaphoid reconstruction does not appear to adversely affect wrist kinematics.

Functional results and quality of life after bilateral scaphoid reconstruction: a case series

2012 ◽  
Vol 133 (2) ◽  
pp. 283-286 ◽  
Author(s):  
Marcus Corsten ◽  
Christian Heffinger ◽  
Leila Kolios ◽  
Marcus Lehnhardt ◽  
Berthold Bickert ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Case Series ◽  
Functional Results ◽  
Scaphoid Reconstruction

Scapho-Capitate Ratio for Estimation of Scaphoid Length

2019 ◽  
Vol 24 (02) ◽  
pp. 202-207
Author(s):  
Mohamed Abou Elatta ◽  
Sami M. Elglaind ◽  
Ekramy Talat ◽  
Abdulla M. Alqaseer ◽  
Hussam M. Basheer
Keyword(s):  
Bone Graft ◽  
Reliable Method ◽  
Metacarpal Bone ◽  
Ratio Estimation ◽  
Degenerative Arthritis ◽  
Ulnar Deviation ◽  
Wrist Fractures ◽  
X Ray ◽  
Scaphoid Reconstruction ◽  
Carpal Height

Background: The failure of scaphoid reconstruction by restoring both length and shape may lead to carpal mal-alignment and progressive degenerative arthritis. The aim of our study is to find a reliable method to find out the scaphoid length without measuring the contralateral scaphoid. Methods: Three X-ray wrist views were collected for 51 patients without any signs suggesting any hand and wrist fractures. The scaphoid, capitate and 3rd metacarpal bone axes lengths and carpal height were measured by 4 hand surgeons separately. Results: The scapho-capitate ratio was 1.1 ± 0.084, 1.01 ± 0.084 and 0.92 ± 0.109 for lateral, postero-anterior with ulnar deviation and postero-anterior view respectively. The ulnar deviation view had the highest reliability. Conclusions: Scapho-capitate ratio estimation is an easy and accurate measure of normal scaphoid length in situations when the scaphoid is short. It is helpful for the estimation of the size of the bone graft that need for reconstruction of the scaphoid.

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