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https://www.readbyqxmd.com/read/28725508/the-anatomy-of-the-dorsal-capsulo-scapholunate-septum-a-cadaveric-study
#1
Marina Tommasini Carrara de Sambuy, Tanya Michelle Burgess, Adeline Cambon-Binder, Christophe L Mathoulin
Background  Tears of the dorsal radiocarpal capsule at the level of the scapholunate interosseous ligament (SLIL) have recently been described in association with predynamic scapholunate instability. Purpose  The aim of this anatomical study of the dorsal capsulo-scapholunate septum (DCSS) was to examine the connection of the dorsal capsule on the SLIL and dorsal intercarpal ligament (DICL). Methods  Fourteen fresh frozen wrists from seven adult cadavers were dissected through a dorsal approach. Any dorsal attachment of the DICL on the dorsal surface of the SLIL, that is, the DCSS, was identified and measured (height and width)...
August 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28709793/dorsal-scaphoid-subluxation-on-sagittal-magnetic-resonance-imaging-as-a-marker-for-scapholunate-ligament-tear
#2
David W Meister, Krystle A Hearns, Michelle G Carlson
PURPOSE: To evaluate the diagnostic utility of scaphoid dorsal subluxation on magnetic resonance imaging (MRI) as a predictor of scapholunate interosseous ligament (SLIL) tears and compare this with radiographic findings. METHODS: Thirty-six MRIs were retrospectively reviewed: 18 with known operative findings of complete Geissler IV SLIL tears that were surgically repaired, and 18 MRIs performed for ulnar-sided wrist pain but no SLIL tear. Dorsal subluxation of the scaphoid was measured on the sagittal MRI cut, which demonstrated the maximum subluxation...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28709792/fixation-of-ultrasmall-proximal-pole-scaphoid-fractures-using-bioabsorbable-osteochondral-fixation-nails
#3
REVIEW
Eugene T Ek, Kemble Wang
Surgical treatment of ultrasmall proximal pole scaphoid fractures poses a number of challenges. The fragment may be too small to fix with conventional headless screw fixation owing to the high risk of fragmentation upon insertion. However, excision of the fragment risks compromising the scapholunate ligament complex and also exposes the radioscaphoid joint to potential degenerative changes. Under these circumstances, we describe the use of bioabsorbable osteochondral fixation nails that allows stable low-profile fixation while minimizing the risk of fracturing the proximal pole...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28690470/equivalent-clinical-outcomes-following-favored-treatments-of-chronic-scapholunate-ligament-tear
#4
REVIEW
Pengcheng Wang, Jeffrey G Stepan, Tonya An, Daniel A Osei
BACKGROUND: Optimal treatment of chronic scapholunate (SL) instability remains controversial. Many surgical techniques have been proposed with varied results in subsequent case series; however, there is limited evidence demonstrating the relative effectiveness of the different treatment options. QUESTIONS/PURPOSES: We conducted a systematic review of the English literature to compare outcomes from capsulodesis and ligament reconstruction for treatment of chronic scapholunate instability...
July 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28673629/treatment-of-intra-articular-distal-radius-fractures
#5
REVIEW
Shohei Omokawa, Yukio Abe, Junya Imatani, Hisao Moritomo, Daisuke Suzuki, Tadanobu Onishi
This review of current literature discusses the morphology of the volar aspect of the distal radius; the surgical procedure, arthroscopic findings, and clinical results of a plate presetting and arthroscopic reduction technique for acute intra-articular fractures; and a novel simulation guidance system for malunited intra-articular fractures. Classification of intra-articular distal radius fractures is also discussed, focusing on central depression fracture fragments, associated soft tissue injuries, and results for measuring scapholunate distances at different sites...
August 2017: Hand Clinics
https://www.readbyqxmd.com/read/28656466/quantitative-analysis-of-scapholunate-diastasis-using-stress-speckle-tracking-sonography-a-proof-of-concept-and-feasibility-study
#6
Pedro Augusto Gondim Teixeira, Sammy Badr, Gabriela Hossu, Guillaume Lefebvre, Waled Abou Arab, Alain Blum, Anne Cotten
OBJECTIVE: To evaluate the feasibility and potential clinical applicability of speckle-tracking sonography for the dynamic evaluation of the scapholunate diastasis during stress manoeuvres. MATERIAL AND METHODS: Two readers used speckle tracking sonography to evaluate scapholunate diastasis during a clenching fist manoeuver in 30 normal wrists. Scapholunate peak strain, mean scapholunate diastasis and the diastasis variation coefficient were analysed. IRB exemption was granted for this study...
June 27, 2017: European Radiology
https://www.readbyqxmd.com/read/28644943/failure-of-wrist-hemiarthroplasty
#7
Eric G Huish, Zachary Lum, H Brent Bamberger, Marc A Trzeciak
BACKGROUND: Wrist hemiarthroplasty has emerged as a motion-sparing option for severe wrist arthritis. It is technically easy with advantages of limited bone resection and no risk of nonunion. Given the relative infancy of the procedure in clinical practice, there are limited data on patient outcomes. METHODS: Eleven patients were treated with wrist reconstructive hemiarthroplasty. Indications included 1 patient with scaphoid nonunion advanced collapse, 9 patients with scapholunate advanced collapse, and 1 patient with capitolunate arthritis...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28628801/evaluation-of-midcarpal-capitate-contact-mechanics-in-normal-injured-and-post-operative-wrists
#8
Saman Modaresi, Madhan S Kallem, Phil Lee, Terence E McIff, E Bruce Toby, Kenneth J Fischer
BACKGROUND: Scapholunate ligament injury is a commonly occurring carpal ligament injury. Pathology associated with scapholunate ligament injury depends on several factors such as the time after injury, type of injury (instability) and the development of osteoarthritis. The aim of this study was to investigate and compare contact mechanics in the lunocapitate and scaphocapitate joints in the normal, injured (scapholunate dissociation) and repaired (postoperative) wrist. METHODS: Four human subjects with scapholunate ligament dissociation participated in this study...
June 13, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28624019/scapholunate-dissociation-diagnostics-made-easy
#9
K C A L Cheriex, G S I Sulkers, M P Terra, N W L Schep, B J P L van Aard, S D Strackee
Scapholunate dissociation (SLD) is a form of carpal instability, caused by rupture of the scapholunate ligament (SLL) the secondary stabiliser of the scapholunate (SL) compartment. SLD can cause osteoarthritis of the wrist. Recently a study was published that shows cineradiography to be an excellent radiological imaging technique for diagnosing SLD at a tertiary centre for hand and wrist surgery [1]. As the quality of these results can be influenced by the expertise of the operator and observer of the cineradiographic studies, the aim of this study was to determine if these results were reproducible at a secondary centre for hand and wrist surgery with less expertise in wrist cineradiography...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28594695/wrist-arthroscopy-in-children-and-adolescent-with-chronic-wrist-pain-arthroscopic-findings-compared-with-mri
#10
Ashok L Ramavath, P N Unnikrishnan, Harvey L George, Paramasivam Sathyamoorthy, Colin E Bruce
BACKGROUND: Wrist arthroscopy is a dynamic diagnostic procedure and its indications are growing as a treatment modality in the adult population. The aim of the study was to retrospectively report our series of pediatric and adolescence with chronic wrist pain, with or without wrist instability who underwent wrist arthroscopy after failing at least 4 months of conservative management. Our secondary aim was to report the sensitivity and specificity of clinical examination and magnetic resonance imaging evaluation for various injury subgroups against the gold standard of the arthroscopic findings...
July 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28578528/update-on-operative-treatment-of-scapholunate-sl-instability-for-radiologists-part-1-sl-ligament-repair-dorsal-capsulodesis-and-sl-ligament-reconstruction
#11
REVIEW
Kimia Khalatbari Kani, Hyojeong Mulcahy, Jack Porrino, Aaron Daluiski, Felix S Chew
Scapholunate instability is the most common form of carpal instability. Imaging (especially radiography) plays an important role in the staging, management and post-operative follow-up of scapholunate (SL) instability. The goals of this article are to review the pre-operative staging of SL instability, the surgical options for repair and reconstruction of the SL ligament, along with the normal postoperative imaging findings as well as complications associated with these surgical options.
June 3, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28552760/denervation-of-the-wrist%C3%A2-with-two-surgical-incisions-is-it-effective-a-review-of-33-patients-with-an-average-of-41months-follow-up
#12
S Delclaux, F Elia, C Bouvet, C Aprédoaei, M Rongières, P Mansat
The goal of wrist denervation is to decrease pain at the wrist, whether caused by an intra- or extra-articular problem or even when the reason for the pain is unknown. It is an alternative to partial or total arthrodesis and proximal row carpectomy. Our hypothesis was that wrist denervation with a two-incision technique was a reliable and efficient way to treat painful degenerative wrists. Thirty-three patients, 48years old on average, were included in this study. Indications were scapholunate advanced collapse (SLAC) in 18 cases, scaphoid nonunion advanced collapse (SNAC) in 10, distal radius fracture sequelae with advanced radiocarpal osteoarthritis in 4, and post-traumatic ulnocarpal impingement in 1 case...
May 25, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28547205/update-on-the-operative-treatment-of-scapholunate-instability-for-radiologists-ii-salvage-procedures-total-wrist-arthrodesis-and-total-wrist-arthroplasty
#13
REVIEW
Kimia Khalatbari Kani, Hyojeong Mulcahy, Jack Porrino, Daluiski Aaron, Felix S Chew
Scapholunate (SL) instability is the most common form of carpal instability. Imaging (especially radiography) plays an important role in the staging, management, and postoperative follow-up of SL instability. In the final stage of SL instability, known as scapholunate advanced collapse, progressive degenerative changes occur at the carpal level. The goals of this article are to review the surgical options available for addressing the different stages of scapholunate advanced collapse, along with an emphasis on normal postoperative imaging and complications associated with each surgical option...
August 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28525962/association-of-lunate-morphology-with-carpal-instability-in-scapholunate-ligament-injury
#14
Eric Quan Pang, Nathan Douglass, Robin N Kamal
BACKGROUND: We examined the relationship between lunate morphology (type 1 without a medial facet; type II with a medial facet) and dorsal intercalated segmental instability (DISI) in patients with scapholunate ligament injuries. We tested the primary null hypothesis that there is no relationship between lunate morphology and development of DISI. Secondary analysis compared the agreement of classifying lunate morphology based on the presence of a medial lunate facet, capitate-to-triquetrum (CT) distance, and magnetic resonance imaging (MRI)...
May 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28521384/analysis-of-tenodesis-techiques-for-treatment-of-scapholunate-instability-using-the-finite-element-method
#15
Teresa Alonso Rasgado, Qinghang Zhang, David Jimenez Cruz, Colin Bailey, Elizabeth Pinder, Avanthi Mandaleson, Sumedh Talwalkar
Chronic Scapholunate ligament (SL) injuries are difficult to treat and can lead to wrist dysfunction. Whilst several tendon reconstruction techniques have been employed in the management of SL instability, SL gap reappearance after surgery has been reported. Using finite element model and cadaveric study data we investigated the performance of the Corella, schapolunate axis (SLAM) and modified Brunelli tenodesis (MBT) techniques. Virtual tenodesis surgery was undertaken in 3D finite element (FE) models to obtain the scapholunate (SL) gap and angle resulting from the three reconstruction techniques...
May 18, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28494943/kinematic-analysis-of-the-scaphoid-using-gated-four-dimensional-ct
#16
I S Mat Jais, S C Tay
AIM: To investigate the kinematics of the scaphoid while the wrist was in radioulnar motion using gated four-dimensional computed tomography (4DCT) imaging. MATERIALS AND METHODS: Six cadaveric wrist specimens were scanned in the following order of capsulotomy and ligament sectioning: (1) ligaments intact, (2) capsulotomy, (3) scapholunate ligament division, and lastly, (4) lunotriquetral ligament division. A three-dimensional model was then reconstructed to analyse the translation and angular displacements of the scaphoid...
May 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28488454/diagnostic-accuracy-of-single-compartment-magnetic-resonance-arthrography-in-detecting-common-causes-of-chronic-wrist-pain
#17
A M Asaad, A Andronic, M P Newby, J W K Harrison
We reviewed a series of 50 consecutive wrist arthroscopy patients who had been investigated pre-operatively by direct magnetic resonance arthrography and calculated the sensitivity, specificity, positive predictive value, negative predictive value and overall accuracy of magnetic resonance arthrography in detecting full-thickness triangular fibrocartilage complex tears, intrinsic carpal ligamentous lesions, wrist synovitis and chondral lesions in the radiocarpal joint. The sensitivities of magnetic resonance arthrography in detecting central triangular fibrocartilage complex tears, peripheral triangular fibrocartilage complex tears, scapholunate ligament tears, lunotriquetral ligament tears, dorsal synovitis and radiocarpal chondral lesions were 89%, 63%, 71%, 100%, 32% and 65%, respectively, and its specificities in detecting these lesions were 91%, 98%, 89%, 94% 94% and 97%, respectively...
March 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28488448/indications-techniques-and-outcomes-of-arthroscopic-repair-of-scapholunate-ligament-and-triangular-fibrocartilage-complex
#18
C L Mathoulin
This review includes updated understanding of the roles of intrinsic and extrinsic carpal ligaments in scapholunate instability and details the author's experience of indications, arthroscopic repair methods, and outcomes of treating the instability. A classification on triangular fibrocartilage complex injuries is reviewed, followed by author's indications, methods, and outcomes of arthroscopic repair of triangular fibrocartilage complex injuries.
July 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28465199/contribution-of-arthroscopy-to-the-treatment-of-intraarticular-fracture-of-the-distal-radius-retrospective-study-of-40-cases
#19
N Christiaens, G Nedellec, E Guerre, J Guillou, X Demondion, C Fontaine, C Chantelot
Our study aimed to compare the anatomical result after treatment of intraarticular distal radius fracture with locking volar plates with and without arthroscopy. This was a retrospective, single-center study of intraarticular fractures. A volar locked plate was used for fracture fixation in all patients. Twenty patients were operated on with fluoroscopy only ("plate" group) and 20 operated using arthroscopy assistance ("arthroscopy" group). All patients underwent a CT scan before surgery and at 3 months postoperative...
April 25, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28465197/effect-of-four-corner-fusion-with-locking-plate-without-bone-graft-on-functional-recovery-of-the-wrist-new-treatment-guidelines
#20
A Tielemans, F Van Innis, S Troussel, C Detrembleur, X Libouton, T Lequint
We assessed the effect of four-corner intercarpal fusion with locking plate without bone graft on daily activities and pain in patients with stage II and III scapholunate advanced collapse and scaphoid nonunion. Twenty-one patients who underwent four-corner fusion with scaphoidectomy without bone graft were evaluated with the Disabilities of the Arm, Shoulder and Hand (QuickDASH) and Visual Analog Scale (VAS) pain scores before and 16 months after surgery. We also compared postoperative grip strength between the operated and the healthy side...
April 5, 2017: Hand Surgery and Rehabilitation
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