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https://www.readbyqxmd.com/read/28428921/distal-scaphoid-resection-and-prosthetic-semireplacement-arthroplasty-for-a-scaphoid-nonunion-with-degenerative-changes
#1
Paul W L Ten Berg, Miryam C Obdeijn
No abstract text is available yet for this article.
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28428913/comparison-of-magnetic-resonance-imaging-and-radiographs-for-evaluation-of-carpal-osteoarthritis
#2
Angela E Li, Steve K Lee, Schneider K Rancy, Alissa J Burge, Hollis G Potter, Scott W Wolfe
Background We sought to evaluate the interobserver and intraobserver reliability of radiographs and magnetic resonance imaging (MRI) for grading of osteoarthritis in patients with scapholunate advanced collapse (SLAC) and scaphoid nonunion advanced collapse (SNAC), and to determine whether MRI is more likely than radiographs to detect carpal osteoarthritis. Methods Radiographs and MR studies of 46 patients with SLAC and SNAC arthritis were reviewed by two hand surgeons and two radiologists and were graded according to severity of osteoarthritis at seven carpal joints...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28428912/biomechanical-evaluation-of-carpal-kinematics-during-simulated-wrist-motion
#3
Helen Stoesser, Clare E Padmore, Masao Nishiwaki, Braden Gammon, G Daniel G Langohr, James A Johnson
Background Flexion and extension of the wrist is achieved primarily at the radiocarpal and midcarpal joints. Carpal kinematics have been investigated, although there remains no consensus regarding the relative contribution of each bone to wrist motion. Purpose To determine the kinematics of the scaphoid, lunate, and capitate during unconstrained simulated wrist flexion/extension and to examine the effect of motion direction on the contribution of each bone. Materials and Methods Seven cadaveric upper extremities were tested in a passive wrist simulator with 10N tone loads applied to the wrist flexors/extensors...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28421607/laterality-and-grip-strength-influence-hand-bone-micro-architecture-in-modern-humans-an-hrpqct-study
#4
Nicolas Reina, Etienne Cavaignac, William H Trousdale, Jean-Michel Laffosse, José Braga
It is widely hypothesized that mechanical loading, specifically repetitive low-intensity tasks, influences the inner structure of cancellous bone. As such, there is likely a relationship between handedness and bone morphology. The aim of this study is to determine patterns in trabecular bone between dominant and non-dominant hands in modern humans. Seventeen healthy patients between 22 and 32 years old were included in the study. Radial carpal bones (lunate, capitate, scaphoid, trapezium, trapezoid, 1st, 2nd and 3rd metacarpals) were analyzed with high-resolution micro-computed tomography...
April 19, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28409141/intrathoracic-fracture-dislocation-of-the-humerus-case-report-and-literature-review
#5
Wilson Carlos Sola Junior, Paulo Sérgio Dos Santos
Shoulder fracture-dislocations are uncommon. Those associated with intrathoracic dislocation are very rare conditions, resulting from high-energy trauma; usually, the affected limb is in an abduction position. In Brazil, there is only one report of a teenager with displacement of the epiphysis into the chest cavity; the present is the first adult patient report of intrathoracic dislocation of the humerus. The authors present the case of a patient female, aged 56 years, who was hit by motorcycle and thrown approximately 5 meters away...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28401362/carpal-scaphoid-non-union-treatment-a-retrospective-trial-comparing-simple-retrograde-percutaneous-screw-fixation-versus-percutaneous-screw-fixation-plus-pulsed-electromagnetic-fields-physiostim-%C3%A2
#6
Alexis Pereira, Juan José Hidalgo Díaz, Maurise Saur, Santiago Salazar Botero, Sybille Facca, Philippe Liverneaux
BACKGROUND: The purpose of this retrospective comparative study was to assess whether a complementary treatment by pulsed electromagnetic field could increase the bone-healing rate of scaphoid non-union without SNAC (scaphoid non-union advanced collapse) treated by retrograde percutaneous screw fixation. CASE DESCRIPTION: Eighteen patients with scaphoid non-union were included in this retrospective study. The group 1 was made of nine cases (seven stage IIA and two stage IIB) of scaphoid non-union treated by retrograde percutaneous screw fixation and pulsed electromagnetic fields (Physiostim(®))...
April 11, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28391752/low-intensity-pulsed-ultrasound-for-nonoperative-treatment-of-scaphoid-nonunions-a-meta-analysis
#7
Edward W Seger, Julio J Jauregui, Steven A Horton, Gerardo Davalos, Erika Kuehn, Michael A Stracher
BACKGROUND: Scaphoid fractures progress to nonunion rates of up to 15% when non-displaced, and are even more frequent when the fracture is displaced. Standard treatment in these cases is surgery; however, individuals unable to undergo this operation, or for those who wish to try more conservative measures, there may be benefit from nonoperative options. Of these, low-intensity pulsed ultrasound (LIPUS) has been shown to improve fracture nonunion healing. The purpose of this study was to perform a comprehensive meta-analysis of relevant literature to determine success of the use of LIPUS for treatment of scaphoid nonunion...
April 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28383357/radiopaque-element-to-evaluate-adequacy-of-debridement-of-bony-lesions
#8
Nicholas Pulos, Alexander Y Shin
A technique for using an x-ray detectable radiopaque element from a surgical sponge to assess the adequacy of debridement of carpal bone cysts, Kienböck disease (lunate avascular necrosis), enchondroma of the digits, and scaphoid nonunions is described. The technique is simple to perform, inexpensive, and presents minimal additional risk to the patient. The technique has been used over the past 16 years and has enabled adequate debridement of these hand and wrist maladies by radiographically demonstrating the adequacy of the debridement to be bone grafted...
April 21, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28382830/effect-of-interfragmentary-gap-on-compression-force-in-a-headless-compression-screw-used-for-scaphoid-fixation
#9
E S Tan, I S Mat Jais, S Abdul Rahim, S C Tay
We investigated the effect of an interfragmentary gap on the final compression force using the Acutrak 2 Mini headless compression screw (length 26 mm) (Acumed, Hillsboro, OR, USA). Two blocks of solid rigid polyurethane foam in a custom jig were separated by spacers of varying thickness (1.0, 1.5, 2.0 and 2.5 mm) to simulate an interfragmentary gap. The spacers were removed before full insertion of the screw and the compression force was measured when the screw was buried 2 mm below the surface of the upper block...
April 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28371501/therapeutic-outcomes-of-kalix-ii-in-treating-juvenile-flexible-flatfoot
#10
Le Cao, Xu-Dong Miao, Yong-Ping Wu, Xiang-Feng Zhang, Qiang Zhang
OBJECTIVES: To evaluate the therapeutic outcomes with Kalix II subtalar arthroereisis in sinus tarsi for juvenile flexible flatfoot. METHODS: A retrospective analysis of the data of 20 juveniles with symptomatic flexible flatfoot (27 feet) who underwent the Kalix II implant procedure from January 2008 to September 2012 was performed. The pain during daily activities was assessed and followed up by use of a standard 10-point visual analog scale (VAS), and function was evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle and hindfoot scoring system, and anteroposterior talar-first metatarsal angle, lateral talar-first metatarsal angle, calcaneal pitch angle, and talar declination angle at X-ray film were measured to assess the therapeutic outcomes...
February 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28365801/a-modified-matti-russe-technique-of-grafting-scaphoid-non-unions
#11
Moritz Dustmann, Ralf Bajinski, Alexander Tripp, Joachim Gülke, Nikolaus Wachter
INTRODUCTION: In treatment of scaphoid non-union bone healing requires beside vital tissue and stability, enduring compression and a good interface between the graft and scaphoid fragments. While fixation techniques show a good primary stability, they reduce sintering and thus compression of fragments in the long term. Therefore, a modified technique optimising the cancellous interface between graft and scaphoid but still providing enough stability without fixating implants should be evaluated...
April 1, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28365146/in%C3%A2-vivo-scaphoid-motion-during-thumb-and-forearm-motion-in-casts-for-scaphoid-fractures
#12
Yohei Kawanishi, Kunihiro Oka, Hiroyuki Tanaka, Kazuomi Sugamoto, Tsuyoshi Murase
PURPOSE: In nonsurgical treatment for acute undisplaced or minimally displaced scaphoid waist fractures, immobilization of both wrist and thumb can be an option. However, in vivo scaphoid motion during forearm and thumb motion with the wrist immobilized in a cast has not been measured. Therefore, we examined the in vivo kinematics of the scaphoid during forearm and thumb motion with cast immobilization. METHODS: Ten healthy right wrists of 10 male volunteers were included...
March 29, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28351546/three-dimensional-comparison-of-alternative-screw-positions-versus-actual-fixation-of-scaphoid-fractures
#13
Ido Volk, Jonathan Gal, Eran Peleg, Gil Almog, Shai Luria
PURPOSE: The recommended technique for the fixation of a scaphoid waist fracture involves a headless compression screw placed in the proximal fragment center. This is usually accomplished by placing a longitudinal axis screw as visualized by fluoroscopy. The screw length has been shown to have a biomechanical advantage. An alternative to these options, which has been debated in the literature, is a screw placed perpendicular to the fracture plane and in its center. The perpendicular screw may have a biomechanical advantage despite the fact that it may be shorter...
March 15, 2017: Injury
https://www.readbyqxmd.com/read/28344539/scaphocapitate-syndrome-with-associated-trans-scaphoid-trans-hamate-perilunate-dislocation-a-case-report-and-description-of-surgical-fixation
#14
Fiesky A Nunez, T David Luo, Jesse B Jupiter, Fiesky A Nunez
Background: Perilunate fracture dislocations are often associated with fractures of the distal pole of the scaphoid or the proximal pole of the capitate. However, the combination of perilunate dislocation with multiple carpal fractures and associated scaphocapitate syndrome is very rare. Methods: We report a unique case of scaphocapitate fracture syndrome with perilunate dislocation and fracture of the hamate resulting from a high-energy injury to the wrist during a dirt-bike competition. Results: Open reduction and internal fixation of the scaphoid fracture with a 3...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344525/mri-correlation-of-radial-head-fractures-and-forearm-injuries
#15
Hisham Awan, Robert Goitz
Background: Radial head fractures can be associated with soft tissue injuries of the forearm and wrist. The Essex-Lopresti injury can lead to significant morbidity, especially if the diagnosis is not made acutely. Better identification of such injuries is needed to allow optimal surgical treatment and prevent long-term sequelae. We used magnetic resonance imaging (MRI) to correlate the degree of soft tissue injuries with radial head fractures. Methods: Sixteen pairs of forearms with an associated radial head fracture in 15 patients prospectively underwent an MRI within 2 weeks of their injury...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344523/scaphoid-nonunion-with-poor-prognostic-factors-the-role-of-the-free-medial-femoral-condyle-vascularized-bone-graft
#16
Tahseen Chaudhry, Lauren Uppal, Dominic Power, Michael Craigen, Simon Tan
Background: To report on the results of free medial femoral condyle (MFC) vascularized bone graft for scaphoid nonunions with 1 or more poor prognostic factors. Methods: We have used the free MFC vascularized bone graft for scaphoid nonunions that have 1 or more factors associated with a poor prognosis. These were, a delay in presentation of over 5 years, a proximal pole nonunion, the presence of avascular necrosis (AVN), or previous nonunion surgery. We used this technique on 20 patients over a 4.5-year period...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344522/vascularized-bone-grafting-in-scaphoid-nonunion-a-review-of-patient-centered-outcomes
#17
REVIEW
Ram K Alluri, Christine Yin, Matthew L Iorio, Hyuma Leland, Jason Wong, Ketan Patel
Background: The radiographic and clinical outcomes following vascularized bone grafting (VBG) for scaphoid nonunion have previously been reported in the literature; however, few studies report on patient-derived outcomes. The purpose of this study was to determine the effect of VBG for scaphoid nonunion on patient-derived outcomes. Methods: The MEDLINE and PubMed databases were queried for the use of VBG in scaphoid nonunion. We included studies that reported on patient-derived outcomes. We excluded studies with less than 10 patients or less than 6 months of follow-up...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28340662/vascularized-small-bone-transfers-for-fracture-nonunion-and-bony-defects
#18
REVIEW
Ai Dong Deng, Marco Innocenti, Rohit Arora, Markus Gabl, Jin Bo Tang
Vascularized small-bone grafting is an efficient and often necessary surgical approach for nonunion or necrosis of several bones in particular sites of the body, including scaphoid, lunate, distal ulna, and clavicle. The medial femoral condyle is an excellent graft source that can be used in treating scaphoid, ulna, clavicle, or lower-extremity bone defects, including nonunion. Vascularized bone grafting to the small bones, particularly involving reconstruction of damaged cartilage surfaces, should enhance subchondral vascular supply and help prevent cartilage regeneration...
April 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28340661/medial-femoral-trochlea-osteochondral-flap-applications-for-scaphoid-and-lunate-reconstruction
#19
REVIEW
James P Higgins, Heinz K Bürger
Vascularized osteochondral flaps are a new technique described for the reconstruction of challenging articular defects of the carpus. The medial femoral trochlea osteochondral flap is supplied by the descending geniculate artery. This osteochondral flap has shown promise in the treatment of recalcitrant scaphoid proximal pole nonunions and advanced avascular necrosis of the lunate. The anatomy, surgical technique, and results are discussed, with clinical cases provided.
April 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28298506/scaphoid-imaging-and-its-challenges
#20
Elizabeth A Paterson, Jonathan B Havrda
No abstract text is available yet for this article.
March 2017: Radiologic Technology
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