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Scaphoid bone

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https://www.readbyqxmd.com/read/28169860/a-rare-complete-metacarpal-pseudoepiphysis-in-a-teenager-with-a-scaphoid-fracture
#1
Rachel B Geffen, Ricardo E Colberg
A 13-yr-old adolescent boy presented with wrist pain after falling off a scooter onto his outstretched hand. Radiographs revealed a nondisplaced hairline fracture of the scaphoid bone and an irregular radiolucent line in the proximal metaphysis of the second metacarpal bone, consistent with an anomalous growth plate, or complete pseudoepiphysis. Complete pseudoepiphysis is a rare finding, with only a few cases reported. Learning about the common locations of growth plates and the radiographic differences between normal, injured, and anomalous growth plates can help decrease physician error and improve patient outcomes...
February 6, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28155839/a-capsular-based-vascularized-distal-radius-graft-in-treatment-of-proximal-pole-scaphoid-pseudoarthrosis-case-study
#2
Wojciech Sroga, Rosa Ana Perez Giner
We present a possible option for surgical treatment of proximal pole scaphoid pseudarthrosis. We used a vascularized distal radius bone graft that was pedicled on the dorsal capsule of the wrist joint. The publication consists of a case study, conclusions, indications and contraindications for the surgery.
November 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28141515/automatic-quantification-of-radiographic-wrist-joint-space-width-of-patients-with-rheumatoid-arthritis
#3
Yinghe Huo, Koen I Vincken, Desiree van der Heijde, Maria J H De Hair, Floris P Lafeber, Max A Viergever
OBJECTIVE: Wrist joint space narrowing is a main radiographic outcome of rheumatoid arthritis (RA). Yet, automatic radiographic wrist joint space width (JSW) quantification for RA patients has not been widely investigated. The aim of this paper is to present an automatic method to quantify the JSW of three wrist joints that are least affected by bone overlapping and are frequently involved in RA. These joints are located around the scaphoid bone, viz. the multangular-navicular, capitate-navicular-lunate, and radiocarpal joints...
January 26, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28137436/arthroscopic-grafting-of-scaphoid-nonunion%C3%A2-%C3%A2-surgical-technique-and-preliminary-findings-from-23-cases
#4
J-M Cognet, P Louis, X Martinache, F Schernberg
We report our experience with the arthroscopic treatment of 23 cases of scaphoid nonunion. We explain the surgical technique and describe the different steps needed to achieve bone union. We report our initial clinical and radiological results. This was a prospective non-randomized study. Inclusion criteria were a scaphoid nonunion without radiocarpal arthritis, without any time limit and without any selection as to nonunion location. Before the operation, patients underwent an X-Ray and CT scan or MRI. Schernberg's classification was used to evaluate the location of the nonunion...
February 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28125938/vascularized-versus-non-vascularized-bone-grafts-in-the-treatment-of-scaphoid-non-union
#5
Christoph Hirche, Lingyun Xiong, Christian Heffinger, Matthias Münzberg, Sebastian Fischer, Ulrich Kneser, Thomas Kremer
INTRODUCTION: Conventional non-vascularized bone grafts as well as vascularized bone grafts are used to treat scaphoid non-union (SN). Due to limited available studies, the field of application using both grafts for SN still remains controversial. The aim of this study was to evaluate a treatment algorithm for the use of both vascularized versus non-vascularized bone grafts based on clinical outcomes and quality of life (QoL) to improve the level of evidence. MATERIALS AND METHODS: Based on a retrospective cohort study, including 28 patients with vascularized and 45 patients with conventional bone grafts, functional parameters, radiological outcome, Mayo-wrist-score, and QoL by SF-36 were applied to statistically compare the outcome of these two techniques...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28114317/the-scaphoid-safe-zone-a-radiographic-simulation-study-to-prevent-cortical-perforation-arising-from-different-views
#6
Qi Quan, Lei Hong, Biao Chang, Ruoxi Liu, Yun Zhu, Jiang Peng, Qing Zhao, Shibi Lu
PURPOSE: The purpose of this study was to simulate and calculate the probability of iatrogenic perforation of the scaphoid cortical bone when internal fixation appeared to be safe on radiographs. The results will assist surgeons in determining proper screw placement. METHODS: Thirty scaphoids were reconstructed using computed tomography data and image-processing software. Different central axes were determined by the software to simulate the surgical views. The safe zone (SZ) and risk zone (RZ) were identified on the axial projection radiographs by comparing the scaphoid bone stenosis measured by the fluoroscopic radiographs with a three-dimensional reconstruction of the scaphoid stenosis...
2017: PloS One
https://www.readbyqxmd.com/read/28099304/three-dimensional-analysis-of-acute-scaphoid-fracture-displacement-proximal-extension-deformity-of-the-scaphoid
#7
Yonatan Schwarcz, Yael Schwarcz, Eran Peleg, Leo Joskowicz, Ronit Wollstein, Shai Luria
BACKGROUND: Our goal was to analyze the movement of acute scaphoid waist fracture fragments and adjacent bones in a common coordinate system. Our hypothesis was that the distal scaphoid fragment flexes and pronates and the proximal fragment extends. METHODS: Computed tomography (CT) scans of patients diagnosed with an acute scaphoid waist fracture were evaluated using a 3-dimensional (3D) model. The scans of 57 nondisplaced and 23 displaced fractures were compared with a control group of 27 scans showing no pathological involvement of the wrist...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28027846/pediatric-scaphoid-proximal-pole-nonunion-with-avascular-necrosis
#8
Edward W Jernigan, Brandon S Smetana, J Megan M Patterson
A 13-year-old, right hand-dominant, otherwise healthy boy presented with left wrist pain 19 months after a nonmotorized scooter injury. Radiographs and magnetic resonance imaging at presentation demonstrated proximal pole scaphoid nonunion with avascular necrosis of the proximal fragment. Operative and nonsurgical treatment options were discussed and the family elected for an attempt at nonsurgical management. The patient was placed in a short-arm thumb spica cast, with a window for a bone stimulator, for 14 weeks...
December 24, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28018087/a-unique-case-of-bilateral-trans-scaphoid-perilunate-dislocation-with-dislocation-of-lunate-into-the-forearm
#9
Siddharth R Virani, Sagar Wajekar, Hariharan Mohan, Aditya A Dahapute
INTRODUCTION: Perilunate dislocations are commonly seen after fall on an outstretched hand in extremes of dorsiflexion and ulnar deviation. A greater arc injury is one when there is an associated fracture of one or more bones around the lunate while a lesser arc injury is associated with pure ligamentous disruption around the lunate. CASE REPORT: We report a unique case of bilateral trans-scaphoid perilunate dislocation in a 35-year-old male labourer. This is the first reported case where the lunate dislocated into the forearm on the volar aspect...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28018058/intramedullary-screw-and-kirschner-wire-fixation-for-unstable-scaphoid-nonunion
#10
Raviv Allon, Aviv Kramer, Ronit Wollstein
Surgical treatment of scaphoid nonunion is not always successful, often requiring stabilization and bone grafting to achieve healing. Even after intramedullary screw fixation, residual instability may still hinder union. The purpose of this study was to describe the addition of Kirschner wires (KWs) through the capitate and the lunate to supplement an intramedullary screw for temporary enhanced stability, possibly improving healing of unstable fractures. A case-control study reviewing 25 cases with addition of KWs and 19 controls was performed...
December 2016: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28012704/tomosynthesis-a-new-radiologic-technique-for%C3%A2-rapid-diagnosis-of-scaphoid-fractures
#11
N Compton, L Murphy, F Lyons, J Jones, P MacMahon, J Cashman
Scaphoid fractures constitute 71% of all carpal bone fractures.(1) Early diagnosis and treatment has significant bearing on fracture union rates and better clinical outcomes. While displaced fractures can be readily seen on plain radiograph, undisplaced fractures can require advanced imaging modalities to confirm that diagnosis. Advanced imaging such as Magnetic Resonance Imaging (MRI), Computerised tomography (CT) and bone scintigraphy are routinely used for the diagnosis of scaphoid fractures but require significant radiation exposure, increased cost and can be difficult to access...
December 21, 2016: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/27999456/investigating-the-effect-of-intra-articular-platelet-rich-plasma-injection-on-union-pain-and-function-improvement-in-patients-with-scaphoid-fracture
#12
Hamid Namazi, Toomaj Kayedi
Introduction Fracture of the scaphoid bone is the most common fracture of the carpus. However, the fracture union occurs late or may not heal. Sometimes, fracture healing requires prolong immobilization. Because of potential for joint stiffness, muscle atrophy, or the inability to use the hand during and after prolonged immobilization, there is great incentive to develop therapies that will accelerate bone healing and allow a quick return to work. To date, the effect of platelet-rich plasma (PRP) on scaphoid fracture has not been studied...
December 2016: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/27939913/non-structural-cancellous-bone-graft-and-headless-compression-screw-fixation-for-treatment-of-scaphoid-waist-non-union
#13
S H Han, H J Lee, I T Hong, U Kim, S J Lee
PURPOSE: Scaphoid fracture commonly occurs around the mid-third of the scaphoid, and non-union of this fracture has several treatment options. The authors performed autologous cancellous bone graft from the iliac crest and headless compression screw fixation for the treatment of Mack-Lichtman type II scaphoid waist non-union. The purpose of this study was to determine whether this procedure was effective in achieving bony union and restoration of alignment. METHODS: Medical records and radiographs of 30 patients who underwent cancellous bone graft and headless compression screw fixation for non-union of scaphoid waist fracture were retrospectively reviewed...
December 7, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27896458/prognostic-factors-in-the-treatment-of-carpal-scaphoid-non-unions
#14
F Schuind, F Moungondo, W El Kazzi
In this literature review, the authors analyse the prognostic factors in the curative treatment of scaphoid non-unions. The main negative prognostic factors are smoking, the time elapsed since the fracture, and avascular necrosis of the proximal fragment. If the latter is present, the revascularization by a pedicle or microsurgical bone autograft is probably the treatment of choice. In non-unions without evidence of osteonecrosis, vascularized bone grafts are probably not superior to conventional bone grafts, which can presently be performed under arthroscopic control, with minimal morbidity...
January 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27890247/reproducibility-of-x-rays-and-ct-arthrography-in-slac-snac-scac-wrists
#15
R Belhaouane, N Lebeau, C Maes-Clavier, C Hustin, E Krief, B Bonnaire, M Warin, V Rotari, E David
The purpose of this study was to assess the inter-observer and intra-observer reproducibility of the interpretation of CT arthrography and plain X-rays for scapholunate advanced collapse (SLAC), scaphoid non-union advanced collapse (SNAC) and scaphoid chondrocalcinosis advanced collapse (SCAC) wrist conditions, as well as the clinical relevance of these imaging modalities. The CT and X-rays images were reviewed twice in a blinded and randomized manner by two experienced orthopedic surgeons specialized in hand surgery, two orthopedic surgery residents and two experienced radiologists specialized in bone and joint imaging...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27847665/an-unusual-and-complicated-course-of-a-giant-cell-tumor-of-the-capitate-bone
#16
Ingo Schmidt
A 51-year-old female patient presented with a carpal giant cell tumor (GCT) of the right capitate bone. The lesion was initially misdiagnosed as having an osteomyelitis. First, the diagnosis of a benign GCT was confirmed by histological examination. Second, an intralesional curettage and packing of the cavity with cancellous iliac crest bone grafts combined with a fusion of the third carpometacarpal (CMC III) joint were carried out. Third, due to a secondary midcarpal osteoarthritis and a secondary scaphoid nonunion, the CMC III joint fusion plate was removed and the midcarpal joint completely excised...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27830329/management-of-scaphoid-nonunion-with-iliac-crest-bone-graft-and-k-wire-fixation
#17
Erin Meisel, Alex Seal, Caroline A Yao, Alidad Ghiassi, Milan Stevanovic
PURPOSE: Scaphoid nonunion can occur in both non-operative and operatively treated scaphoid fractures. Without treatment, this can lead to a predictable pattern of carpal collapse and degenerative arthritic change and patients can experience both pain and functional loss in the early and late phases of progression. An operative technique with a high success rate for union is important. This paper describes a technique for treatment of scaphoid nonunion with K-wire fixation and iliac crest cancellous bone graft...
November 9, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27811625/internal-bone-grafting-for-the-treatment-of-scaphoid-nonunions
#18
Utkan Aydin, Sunil M Thirkannad
Scaphoid fracture is the most common carpal fracture of the upper extremity and a significant proportion of these can eventually progress to nonunion. Excision of pseudoarthrosis and fibrous scar tissue at the nonunion site is regarded as one of the important steps in management of scaphoid nonunions. We describe a technique of internal bone grafting, where curettage of the nonunion site was performed through a drill hole in the scaphoid and bone graft was packed through this same hole before fixation with a headless compression screw...
March 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/27803379/four-corner-arthrodesis-employing-the-native-scaphoid-as-the-principal-donor-graft-for-advanced-collapse-deformity-of-the-wrist-technique-and-outcomes
#19
S M Koehler, C P Melone
: The purpose of this study was to determine the functional, radiographic, and subjective outcome of the authors' technique of four-corner arthrodesis using the en bloc excised scaphoid as the principal donor bone graft coupled with Kirschner wire fixation. The study comprised 40 consecutive patients with progressive Stage II and III scapholunate advanced collapse or scaphoid nonunion advanced collapse deformities. Preoperative and postoperative range of motion, grip strength, carpal height, and Michigan Hand Outcomes Questionnaire responses were assessed with a mean follow-up of 4...
October 31, 2016: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/27793864/unilateral-fusion-of-the-scaphoid-and-the-trapezium
#20
Alexander Robert Poublon, Gerald Kraan, Gert-Jan Kleinrensink
Fusion of the carpal bones is a rare anatomical abnormality, caused by a defect in the separation and cavitation during embryonic development. It has a prevalence of about 0.1% and most of the time, patients do not present with symptoms. Symptoms are usually caused by wear and tear of the ligaments attached to the fused carpal fragments. We present a case in which a woman aged 36 years experiences pain caused by a lunato-triquetral instability which in turn is caused by a unilateral complete fusion of the scaphoid and the trapezium...
October 28, 2016: BMJ Case Reports
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