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Midcarpal

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https://www.readbyqxmd.com/read/29576921/morphological-associations-between-the-distal-radioulnar-joint-and-the-lunate
#1
Flavien Mauler, Jean-Yves Beaulieu
Background  Variations in morphology of the carpal bones have been described. Their implication in wrist disease and specific kinematic features has been recognized, and a better knowledge of these variations is essential. Questions/Purpose  To radiographically determine any association between the morphological variations of the distal radioulnar joint (DRUJ) and the lunate bone. Materials and Methods  Radiographs of 100 wrists of patients presenting to the emergency department with wrist pain and referred to our outpatient clinic were retrospectively reviewed for DRUJ inclination, ulnar variance, and radiocarpal and midcarpal morphology of the lunate...
April 2018: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/29576917/results-of-the-universal-2-prosthesis-in-noninflammatory-osteoarthritic-wrists
#2
M E Brinkhorst, R W Selles, J J Dias, H P Singh, R Feitz, T M Moojen, S E R Hovius
Background/Purpose  Many treatment options are available for wrist osteoarthritis, with the objective of decreasing pain and preserving function. In later stages when midcarpal and radiocarpal osteoarthritis occur, two choices remain: total wrist arthrodesis or total wrist arthroplasty. The purpose of this study is to present the short-term functional changes following total wrist arthroplasty with the Universal 2 total wrist system (Integra Life Sciences) in patients with noninflammatory wrist osteoarthritis...
April 2018: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/29573895/the-effect-of-dorsally-angulated-distal-radius-deformities-on-carpal-kinematics-an-in-vitro-biomechanical-study
#3
Clare E Padmore, Helen Stoesser, Masao Nishiwaki, Braden Gammon, G Daniel G Langohr, Emily A Lalone, James A Johnson, Graham J W King
PURPOSE: The purpose was to quantify the effect of distal radius dorsal angulation (DA) on carpal kinematics and the relative roles of the radiocarpal and midcarpal joints during wrist motion. METHODS: Six cadaveric specimens (69 ± 17 y) were mounted at 90° elbow flexion in a custom wrist motion simulator. The wrist was guided through planar passive flexion and extension motion trials (∼ 5°/s). A custom modular distal radius implant was used to simulate native alignment and 3 distal radius DA deformities (10°, 20°, 30°)...
March 21, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29556421/normative-ultrasound-references-for-the-paediatric-wrist-dorsal-soft-tissues
#4
Karen Rosendahl, Ingvild Sævold Bruserud, Ninnie Oehme, Pétur Benedikt Júlíusson, Laura Tanturri de Horatio, Lil-Sofie Ording Müller, Silvia Magni-Manzoni
Objective: To report novel ultrasound (US) references for the healthy paediatric wrist. Methods: Healthy children and adolescents had an US examination including Doppler, of the right wrist, using a mid-sagittal image through the radiocarpal (RC)/midcarpal (MC) joints. These features were noted: appearances and depth of the recess, with an additional measurement in the flexed position and number of Doppler signals within the recess in close proximity to the joint...
2018: RMD Open
https://www.readbyqxmd.com/read/29538093/third-ray-and-capitate-resection-with-limited-midcarpal-fusion-for-recurrent-giant-cell-tumor-a-case-report
#5
Michael K Bokemper, Edgar T Araiza, Kimberly J Templeton, Tyler J Fox
CASE: We describe a 23-year-old man who had multiple recurrences of a giant cell tumor (GCT) of the third metacarpal. Initial treatments consisted of curettage without the use of an adjuvant and bone-grafting. At the time of the latest recurrence, the lesion had extended into the capitate and the trapezoid. Treatment included third-ray resection and limited midcarpal fusion. No local recurrence was identified at more than 1 year after surgery. CONCLUSION: GCTs of the hand should be aggressively treated, but care should be taken to preserve function whenever possible...
January 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29463128/distal-scaphoid-excision-in-treatment-of-symptomatic-scaphoid-nonunion-systematic-review-and-meta-analysis
#6
Cory K Mayfield, Daniel J Gould, Marie Dusch, Amir Mostofi
BACKGROUND: Current treatment options for persistent scaphoid nonunion are limited to salvage procedures such as proximal row carpectomy (PRC) or 4-corner fusion (4CF). Several small studies have demonstrated that distal scaphoid excision may provide a simpler alternative with faster recovery. The purpose of this study was to determine the efficacy of distal scaphoid excision as a treatment option for symptomatic scaphoid nonunion. METHODS: The MEDLINE and PubMed databases were searched for the use of distal scaphoid excision in scaphoid nonunions...
February 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29447753/kinematics-of-the-anthropoid-os-centrale-and-the-functional-consequences-of-scaphoid-centrale-fusion-in-african-apes-and-hominins
#7
Caley M Orr
In most primates, the os centrale is interposed between the scaphoid, trapezoid, trapezium, and head of the capitate, thus constituting a component of the wrist's midcarpal complex. Scaphoid-centrale fusion is among the clearest morphological synapomorphies of African apes and hominins. Although it might facilitate knuckle-walking by increasing the rigidity and stability of the radial side of the wrist, the exact functional significance of scaphoid-centrale fusion is unclear. If fusion acts to produce a more rigid radial wrist that stabilizes the hand and limits shearing stresses, then in taxa with a free centrale, it should anchor ligaments that check extension and radial deviation, but exhibit motion independent of the scaphoid...
January 2018: Journal of Human Evolution
https://www.readbyqxmd.com/read/29439687/3d-analysis-of-osteosyntheses-material-using-semi-automated-ct-segmentation-a-case-series-of-a-4-corner-fusion-plate
#8
Rebecca Woehl, Johannes Maier, Sebastian Gehmert, Christoph Palm, Birgit Riebschlaeger, Michael Nerlich, Michaela Huber
BACKROUND: Scaphoidectomy and midcarpal fusion can be performed using traditional fixation methods like K-wires, staples, screws or different dorsal (non)locking arthrodesis systems. The aim of this study is to test the Aptus four corner locking plate and to compare the clinical findings to the data revealed by CT scans and semi-automated segmentation. METHODS: This is a retrospective review of eleven patients suffering from scapholunate advanced collapse (SLAC) or scaphoid non-union advanced collapse (SNAC) wrist, who received a four corner fusion between August 2011 and July 2014...
February 13, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29428553/radiocarpal-dislocations-and-fracture-dislocations-injury-types-and-long-term-outcomes
#9
C Spiry, G Bacle, E Marteau, B Charruau, J Laulan
INTRODUCTION: Radiocarpal dislocation (RCD) and fracture-dislocations (RCFD) are severe but rare injuries for which the treatment and outcomes are not well defined. The aim of this retrospective study was to describe the prevalence of the various injury types and their long-term outcomes. PATIENTS AND METHODS: Between 1992 and 2014, 41 patients with RCFD were seen at our institution. According to the Dumontier classification, there were 4 cases of type 1 and 37 cases of type 2...
April 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29383283/arthroscopic-scaphoid-3d-test-for-scapholunate-instability
#10
Fernando Corella, Montserrat Ocampos, Miguel Del Cerro
Background  Patients with scapholunate instability usually have pain in the dorsal wrist. This pain may occur due to the impingement between the scaphoid and the dorsal rim of the radius when the scaphoid is detached from the lunate. This pain appears as the scaphoid is displaced over the dorsal rim of the radius. The arthroscopic scaphoid 3D (dorsal, dynamic, displacement) test is described here to check this pathologic dorsal displacement of the scaphoid. Surgical Technique  The test should be performed both in the radiocarpal and midcarpal joints...
February 2018: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/29241841/dorsal-wrist-plication-for-midcarpal-instability
#11
Herbert P von Schroeder
PURPOSE: Midcarpal instability (MCI) is a cause of chronic wrist pain for which treatment remains controversial. This study's purpose was to determine the outcome of a treatment algorithm for MCI that included immobilization and surgical interventions. METHODS: We prospectively enrolled 23 consecutive patients (12 males, average age 27 years) with 27 symptomatic wrists. All had generalized wrist pain with an average duration of 22 months. All had MCI and a catch-up clunk that reproduced the symptoms...
December 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29146510/relative-contributions-of-the-midcarpal-and-radiocarpal-joints-to-dart-thrower-s-motion-at-the-wrist
#12
Patrick M Kane, Bryan G Vopat, P Kaveh Mansuripur, Michael P Gaspar, Scott W Wolfe, Joseph J Crisco, Christopher Got
PURPOSE: To identify the relative contributions of the radiocarpal (RC) and midcarpal (MC) joints to dart-thrower's motion (DTM) of the wrist. METHODS: Six cadaveric upper extremities were fixed to a custom-designed loading jig allowing for pure moment-rotation analysis in 24 different directions of wrist motion. Each specimen was tested in 3 states: intact, simulated radiocarpal fusion (sRCF) and simulated pancarpal fusion (sPCF). Moments of ± 1.5 Nm were applied at each of 24 directions for each state and the resulting wrist rotation recorded...
March 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29146508/biomechanical-analysis-of-palmar-midcarpal-instability-and-treatment-by-partial-wrist-arthrodesis
#13
Sarah A Shiga, Frederick W Werner, Marc Garcia-Elias, Brian J Harley
PURPOSE: To create a biomechanical model of palmar midcarpal instability by selective ligament sectioning and to analyze treatment by simulated partial wrist arthrodesis. METHODS: Nine fresh-frozen cadaver arms were moved through 3 servohydraulic actuated motions and 2 passive wrist mobilizations. The dorsal radiocarpal, triquetrohamate, scaphocapitate, and scaphotrapeziotrapezoid ligaments were sectioned to replicate palmar midcarpal instability. Kinematic data for the scaphoid, lunate, and triquetrum were recorded before and after ligament sectioning and again after simulated triquetrohamate arthrodesis (TqHA) and radiolunate arthrodesis (RLA)...
November 14, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29132239/lunate-fractures-and-associated-radiocarpal-and-midcarpal-instabilities-a-systematic-review
#14
Meenalochani Shunmugam, Joideep Phadnis, Amy Watts, Gregory I Bain
The aim of this study was to analyse lunate fractures and any associated osseo-ligamentous injuries. A systematic review identified 34 cases. We identified carpal instabilities at the radiocarpal and midcarpal joints in volar and dorsal directions. Radiocarpal instabilities (10/34) were usually dorsoradial (8/10), with a transverse lunate fracture, best seen on a coronal image. Midcarpal instabilities (24/34) were usually volar (14/18), with a volar lunate shear fracture, best seen on a sagittal image. Instabilities were sub-classified into non-displaced, subluxated and dislocated...
January 2018: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29117846/lunotriquetral-ligament-reconstruction-utilizing-a-palmaris-longus-autograft
#15
Carl M Harper, Matthew L Iorio
Injury to the lunotriquetral ligament can result in midcarpal instability, with resultant alterations in normal wrist kinematics and subsequent arthrosis. We performed a previously undescribed technique of lunotriquetral ligament reconstruction in two patients utilizing a palmaris longus tendon autograft. Average age at presentation was 24 years old with a mean follow up of 10 months. Average range of motion was 62.5° of flexion and 57.5° of extension. Total arc of motion was 83% of the contralateral uninvolved extremity...
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29104819/significance-of-scapholunate-gap-width-as-measured-by-probe-from-midcarpal
#16
Steffen Löw, Holger Erne, Ute Strobl, Frank Unglaub, Christian K Spies
Background  Geissler's classification is widely accepted in arthroscopic diagnostics of scapholunate (SL) ligament injury. Thereby, probe insertion into the SL gap from the midcarpal would indicate treatment necessity in patients with SL tear as seen from radiocarpal view. Purpose  In this review, the SL gap width, examined by the probe from midcarpal, was arthroscopically assessed in patients with intact SL ligaments, who were treated for ulnar impaction syndrome. The review examined how often lax SL joints can be found in patients with no complaints with respect to the SL ligaments and in which the SL ligaments were proven to be intact from radiocarpal view...
November 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28991583/midcarpal-instability-the-role-of-wrist-arthroscopy
#17
REVIEW
Ryan P C Higgin, David G Hargreaves
The evidence behind management options for midcarpal instability (MCI) is scarce, relying solely on case series. Established treatments cause significant loss of wrist motion. As understanding of the condition has progressed, surgeons have been trying soft tissue techniques. The treatment option should be chosen for the appropriate type and grade of MCI. The Hargreaves grading system for palmar MCI aids treatment decision-making. A possible role for arthroscopy in treatment of MCI has been developed using arthroscopic thermal capsular shrinkage, appropriate for cases with dynamic instabilities...
November 2017: Hand Clinics
https://www.readbyqxmd.com/read/28927881/four-year-outcomes-of-midcarpal-hemiarthroplasty-for-wrist-arthritis
#18
Marie Anneberg, Greg Packer, Joseph J Crisco, Scott Wolfe
PURPOSE: The purpose of this study was to review the average 4-year outcomes of a cohort of patients with wrist arthritis, treated by a single surgeon with a novel prosthetic hemiarthroplasty of the midcarpal joint. We hypothesized that midcarpal hemiarthroplasty would improve range of motion and grip strength of patients with wrist arthritis, with a complication profile comparable with that of alternative solutions for wrist arthritis. METHODS: We reviewed a series of 20 patients treated with a midcarpal hemiarthroplasty at an average of 4 years following surgery...
November 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28900671/-wrist-arthrodesis-with-a%C3%A2-fixed-angle-low-profile-fusion-plate-without-carpometacarpal-joint-fixation
#19
REVIEW
S Köhler, K Koch, A Arsalan-Werner, I M Mehling, J Seegmüller, H Krimmer, Michael Sauerbier
OBJECTIVE: Total wrist arthrodesis to improve functional use of the hand by reducing pain and increasing grip strength. INDICATIONS: Painful destruction of the radio- and midcarpal joints. CONTRAINDICATIONS: Analgesia and satisfactory hand function after motion-preserving surgical or conservative treatment. Chronic joint infection. SURGICAL TECHNIQUE: Posterior approach to the wrist. Removal of articular surfaces destroyed all the way down to cancellous bone...
September 12, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28888525/clinical-and-radiological-outcomes-following-radioscapholunate-fusion
#20
D Montoya-Faivre, G Pomares, V Calafat, F Dap, G Dautel
INTRODUCTION: Radioscapholunate (RSL) fusion is typically performed following wrist trauma. It addresses the pain caused by radiocarpal osteoarthritis but reduces the wrist's mobility. The objective of this study was to determine the long-term clinical and radiological outcomes of this procedure. MATERIALS AND METHODS: This was a retrospective study of all wrists operated for RSL fusion in our surgery unit over a 12-year period. The clinical analysis consisted of joint amplitudes, grip strength, pain (VAS) and functional scores (PRWE, QuickDash, Mayo Wrist Score)...
September 6, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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