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https://www.readbyqxmd.com/read/27890248/proximal-row-carpectomy-on-manual-workers-17%C3%A2-patients-followed-for-an-average-of-6%C3%A2-years
#1
S Delclaux, D Israel, C Aprédoaei, M Rongières, P Mansat
: Proximal row carpectomy (PRC) is indicated for the treatment of SNAC or SLAC wrist with preservation of the midcarpal joint. Our hypothesis was that PRC is not appropriate for treating advanced wrist osteoarthritis in patients who carry out heavy manual work. Twenty-three PRCs were performed on 21 patients, 5 women and 16 men with an average age of 54 years (33-77). All patients performed manual work; 11 of them performed heavy manual work. Etiologies were: SLAC wrist in 14 cases (2 stage III, 11 stage II, and 1 stage I) and SNAC wrist in 9 cases (6 stage IIIB and 3 stage IIB)...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27890195/-carpal-malalignment-following-distal-radius-fracture
#2
B Coulet, M-O Gauci, C Lazerges, M Chammas
Adaptive carpal malalignment is the consequence of malunion of the distal radius. Since the radial metaphysis and capitate have to be aligned, any disorientation of the radial epiphysis will force the proximal carpal row to adapt, as it is the only mobile element. There are two types of adaptation depending where the compensative occurs: (1) midcarpal - leading to flexion between the lunate and capitate, with the lunate maintaining a normal relationship with the radial epiphysis axis; (2) radiocarpal - combining flexion and dorsal displacement of the lunate relative to the axis of the radial epiphysis, with the midcarpal joint remaining aligned...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27855045/-four-corner-fusion-in-patients-with-wrist-arthritis
#3
María Francisca Vázquez-Alonso, Alberto Viñas-Silva
Scapholunate advance collapse (SLAC) and Scaphoid nonunion advance collapse (SNAC), are the two most common patterns of postraumatic wrist arthritis. SLAC wrist develops after attenuation, either traumatically or atraumatically, of the scapholunate ligament. Atraumatic causes of SLAC wrist include calcium pyrophosphate dehydrate deposition disease, reumathoid arthritis, neuropathic diseases, and b2-microglobulin asociated amyloid deposition diseases. On the other hand, SNAC wrist develops following a scahpoid fracture that has progressed to a nonunion...
2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27847665/an-unusual-and-complicated-course-of-a-giant-cell-tumor-of-the-capitate-bone
#4
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/27788281/locomotor-hand-postures-carpal-kinematics-during-wrist-extension-and-associated-morphology-in-anthropoid-primates
#5
Caley M Orr
The biomechanics of wrist extension (or dorsiflexion) are important for understanding functional adaptation of the primate hand because extension mobility varies with habitual locomotor hand posture and facilitates certain manipulative tasks. Here, intercarpal kinematics are employed to investigate mechanisms underlying wrist extension in a sample of anthropoids representing various arboreal and terrestrial locomotor modes. Carpal kinematics are studied using computed-tomography of cadaveric forelimbs, and these data are combined with a morphometric analysis of biomechanically-informative anatomical features...
October 27, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27777824/the-course-of-the-terminal-posterior-interosseous-nerve-and-its-relationship-with-wrist-arthroscopy-portals
#6
Yongwei Pan, Leung-Kim Hung
Purpose The terminal branches of the posterior interosseous nerve (PIN) are the main articular branch on the dorsal aspect of the wrist. Its relationship to dorsal wrist arthroscopic portals has not yet been elucidated. The purpose of this study was to quantitatively describe the anatomical relationships between the dorsal wrist arthroscopic portals and the PIN. Methods Dorsal wrist arthroscopic portals were established in 28 cadaver extremities, after which the limbs were dissected. Measurements were taken from the portals to the PIN...
November 2016: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/27777816/stage-iii-advanced-wrist-collapse-treatment-options-a-cadaveric-study
#7
Jorge Chahla, Jason M Schon, Ramiro Olleac, Sebastián Senes, Damián Arroquy, Chase S Dean, Gabriel Clembosky, Alvaro Muratore
Background Scapholunate advanced collapse and scaphoid nonunion advanced collapse result in high morbidity and pose significant challenges for active patients. Multiple treatment options have been proposed to yield satisfactory results; however, restoration of physiological wrist motion remains an issue. Questions/Purposes The objective of this study was to compare wrist mobility after four different treatment methods for grade III wrist collapse: (1) no treatment, (2) scaphoidectomy and lunate-capitate arthrodesis, (3) scaphoidectomy, lunate-capitate arthrodesis, and triquetrum-hamate arthrodesis, and (4) scaphoidectomy, lunate-capitate arthrodesis, and triquetrum excision...
November 2016: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/27777814/kienb%C3%A3-ck-disease-and-arthroscopy-assessment-classification-and-treatment
#8
Gregory I Bain, Simon B M MacLean, Wing-Lim Tse, Pak-Cheong Ho, David M Lichtman
The assessment and management of Kienböck Disease (KD) has always been a conundrum. The Lichtman classification has traditionally been used to guide treatment based on imaging. Arthroscopy provides a direct visualization of the articular surface, allows probing of the surfaces, and enables minimally invasive techniques to be performed. The Lichtman-Bain classification is a new classification that takes into account the osseous, vascular, and cartilage aspects of the lunate and the secondary effects on the wrist...
November 2016: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/27740464/inside-out-method-to-develop-volar-arthroscopic-portals-of-the-wrist-in-cadaver-specimens
#9
I Naroura, A Zemirline, C Taleb, F Lebailly, S Facca, J J Hidalgo Díaz, S Collon, P Liverneaux
Three direct volar portals for wrist arthroscopy have been described previously: two radiocarpal and one midcarpal. The aim of this study was to systematically describe four volar arthroscopic portals through minimally invasive incisions using an inside-out approach from known dorsal portals. Four volar arthroscopic wrist portals were studied on six hand specimens using an inside-out technique: a radial radiocarpal approach (RRCA), an ulnar radiocarpal approach (URCA), a radial midcarpal approach (RMCA) and an ulnar midcarpal approach (UMCA)...
June 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27705062/decoupling-the-wrist-a-cadaveric-experiment-examining-wrist-kinematics-following-midcarpal-fusion-and-scaphoid-excision
#10
Jennifer A Nichols, Michael S Bednar, Robert M Havey, Wendy M Murray
At the wrist, kinematic coupling (the relationship between flexion-extension and radial-ulnar deviation) facilitates function. Although the midcarpal joint is critical for kinematic coupling, many surgeries, such as four-corner fusion (4CF) and scaphoid-excision four-corner fusion (SE4CF), modify the midcarpal joint. This study examines how 4CF and SE4CF influence kinematic coupling by quantifying wrist axes of rotation. Wrist axes of rotation were quantified in eight cadaveric specimens using an optimization algorithm, which fit a two-revolute joint model to experimental data...
October 5, 2016: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/27570228/changes-in-wrist-motion-after-simulated-scapholunate-arthrodesis-a-cadaveric-study
#11
Kevin D Han, Jaehon M Kim, Michael V DeFazio, Ricardo J Bello, Ryan D Katz, Brent G Parks, Kenneth R Means
PURPOSE: A high incidence of nonunion and relatively poor outcomes with prior fixation techniques has precluded scapholunate (SL) arthrodesis as a standard treatment for SL instability. Our purpose was to determine the impact on range of motion (ROM) of simulated SL arthrodesis via headless screw fixation. METHODS: We performed baseline wrist ROM for 10 cadaveric wrists using a standardized mounting-and-weights system. Extension, flexion, radial deviation, ulnar deviation, dart-thrower's extension, and dart-thrower's flexion were assessed...
September 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/27385202/-carpus-and-distal-radioulnar-joint-clinical-and-radiological-examination
#12
C K Spies, M F Langer, F Unglaub, M Mühldorfer-Fodor, L P Müller, C Ahrens, S F Schlindwein
A precise medical history and specific symptom-oriented clinical tests of the wrist joint should always precede any radiological, computed tomography (CT) or magnetic resonance imaging (MRI) diagnostics. In many cases, specific clinical tests of the wrist joint allow at least a preliminary diagnosis, which can be supported by standard radiography using correct projections. A systematic approach is recommended covering the radiocarpal, midcarpal, ulnocarpal and distal radioulnar joints. Exact identification of the palpable anatomic landmarks is mandatory for correct application and interpretation of the various clinical tests...
August 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27354948/arthroscopic-reduction-and-stabilization-of-chronic-perilunate-wrist-dislocations
#13
Deepak N Bhatia
An acute perilunate wrist injury that is unreduced for more than 6 weeks results in severe disability, and even open reduction with stabilization through wide dorsal and volar approaches is technically challenging. This report describes an arthroscopic technique for reduction and percutaneous wire stabilization of a chronic perilunate wrist dislocations. The technique involves initial radiocarpal and midcarpal access through the 6R and 3-4 portals, and these portals are used for synovectomy and debridement of capsular flap tears...
April 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27264901/role-of-muscles-in-the-stabilization-of-ligament-deficient-wrists
#14
Mireia Esplugas, Marc Garcia-Elias, Alex Lluch, Manuel Llusá Pérez
This article reviews the results of a series of cadaver investigations aimed at clarifying the role of muscles in the stabilization of ligament-deficient wrists. According to these studies, isometric contraction of some forearm muscles induces midcarpal (MC) supination (ie, the abductor pollicis longus, extensor carpi radialis longus, and flexor carpi ulnaris), whereas other muscles induce MC pronation (ie, the extensor carpi ulnaris). Because MC supination implies tightening of the volar scaphoid-distal row ligaments, the MC supination muscles are likely to prevent scaphoid collapse of wrists with scapholunate ligament insufficiency...
April 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/27247752/fixed-lunate-flexion-deformity-in-distal-radius-fractures
#15
Sanglim Lee, Jae-Ha Yu, Suk Ha Jeon
Carpal malalignments in malunion of distal radius fracture are considered as an adaptive response of the carpus to loss of normal architecture of the distal radius. This condition leads to mechanical overload, ligament attenuation and progressive dynamic instability around the wrist joint. Radial corrective osteotomy is suggested as a treatment option of carpal malalignment after distal radius malunion. In radiocarpal malalignment, the lunate is usually observed in flexion in contrast to its extension posture in the more common midcarpal malalignment...
June 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27118235/corrigendum-on-diaz-gallardo-p-francisco-s-and-allende-c-traumatic-midcarpal-dislocation-in-an-8-year-old-girl-j-hand-surg-eur-epub-ahead-of-print-19th-february-2016-doi-10-1177-1753193416632155
#16
(no author information available yet)
No abstract text is available yet for this article.
April 26, 2016: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/27117017/isolated-or-predominant-capitolunate-osteoarthritis-is-the-consequence-of-lunotriquetral-dissociation-x-ray-analysis-of-22-consecutive-cases
#17
J Brunet, G Bacle, E Marteau, F Gadea, J Laulan
Secondary osteoarthritis due to a scapholunate malalignment is well known, but is debatable in cases of lunotriquetral malalignment. It has been shown that lunotriquetral malalignment can lead to midcarpal osteoarthritis. The hypothesis of this retrospective study was that a relationship exists between the presence of midcarpal osteoarthritis and the presence of lunotriquetral malalignment. All patients with midcarpal osteoarthritis, isolated or predominant, treated between 1981 and 2013 were reviewed. Intracarpal angles were measured and the relative position of the carpal bones was analyzed by two examiners...
February 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27104073/vascularized-bone-grafts-from-the-dorsal-wrist-for-the-treatment-of-kienb%C3%A3-ck-disease
#18
Makoto Nakagawa, Shohei Omokawa, Tsutomu Kira, Kenji Kawamura, Yasuhito Tanaka
Purpose The objective of this article is to evaluate functional and radiological outcomes of vascularized bone grafts for stage 2 and 3 Kienböck disease. The outcomes of three different donor sites via dorsal approach of the wrist were compared. Pearls and pitfalls in surgical technique were discussed. Methods There were 28 patients who underwent vascularized bone grafts, including the extensor fourth and fifth compartmental artery graft of distal radius in 8 patients, the first and second supraretinacular intercompartmental artery graft of distal radius in 12 patients, and the second dorsal metacarpal neck graft in 8 patients...
May 2016: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/27074739/-arthroscopic-resection-of-dorsal-wrist-ganglion-cysts
#19
N Borisch
OBJECTIVE: Pain relief and improvement of hand function by ganglion cyst resection and/or creation of a dorsal capsular window with partial synovectomy. In the case of visible ganglion cysts consideration of aesthetic aspects. INDICATIONS: Visible and occult persisting dorsal wrist ganglion cysts, recurrent ganglion cyst after open or arthroscopic resection and intraosseous ganglion cyst with an extraosseous portion. CONTRAINDICATIONS: Recent skin lesion of the wrist...
August 2016: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/27056276/assessment-of-the-structures-at-risk-during-wrist-arthroscopy-a-cadaveric-study-and-systematic-review
#20
G Shyamalan, R W Jordan, P K Kimani, P A Liverneaux, C Mathoulin
UNLABELLED: We assessed the proximity of neurological structures to arthroscopic portals in a cadaveric study and through a systematic review. Arthroscopy was performed on ten cadaveric wrists. Subsequently the specimens were dissected to isolate the superficial branch of the radial nerve, the dorsal branch of the ulnar nerve, the posterior interosseous nerve and the extensor tendons. We measured the distances from the nerves to common portals. For the systematic review Pubmed and EMBASE were searched on the 31 May 2014 for cadaveric studies reporting the proximity of neurological structures to any arthroscopic wrist portal...
October 2016: Journal of Hand Surgery, European Volume
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