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https://www.readbyqxmd.com/read/28435583/ulnar-osteotomy-with-2-pin-unilateral-gradual-distraction-for-treatment-of-chronic-monteggia-fracture-a-case-report
#1
S G Gooi, C S Wang, A Saw, O Zulkiflee
Missed Monteggia fracture leading to chronic radial head dislocation is a known complication. The surgical treatment options remain challenging. The aim of treatment is to reduce the radial head and to maintain the stability of the elbow in all ranges of motion. A few surgical techniques have been described with complications. We report the case of a 13 years old boy with chronic radial head dislocation as a result of an unrecognised Monteggia fracture-dislocation for eight years. We successfully reduced the radial head and corrected the cubital valgus from 45 degrees to 10 degrees with a proximal ulna osteotomy and gradual distraction with 2-pin Monotube external fixator...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435558/nonunion-of-fractures-of-the-ulna-and-radius-diaphyses-clinical-and-radiological-results-of-surgical-treatment
#2
H Boussakri, A Elibrahimi, M Bachiri, M Elidrissi, M Shimi, A Elmrini
Aseptic nonunion of the radius and ulna is a major complication of forearm fractures, accounting for 2% to 10% of all forearm fractures. The aim of our study is to evaluate the functional and radiological results of surgical treatment of diaphyseal aseptic nonunion of the radius and ulna, with autologous bone grafting, decortication and internal plate fixation. A series of 21 patients (26 nonunions) was retrospectively reviewed, the average age was 35 years with a mean of 31,58 years (range 12-44 years). The fractures included isolated radius (n=6) and ulna (n=10), and both radius and ulna (n=5)...
July 2016: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435555/the-radial-bow-following-square-nailing-in-radius-and-ulna-shaft-fractures-in-adults-and-its-relation-to-disability-and-function
#3
M B Dave, K D Parmar, B A Sachde
One of the points made against nailing in radius and ulna shaft fractures has been the loss of radial bow and its impact on function. The aims of the study were to assess the change in magnitude and location of the radial bow in radius and ulna shaft fractures treated with intramedullary square nails and to assess the impact of this change on functional outcome, patient reported disability and the range of motion of the forearm. We measured the magnitude of radial bow and its location in the operated extremity and compared it to the uninjured side in 32 adult patients treated with intramedullary square nailing for radius and ulna shaft fractures at our institute...
July 2016: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28434539/evolutionary-anatomy-of-the-neandertal-ulna-and-radius-in-the-light-of-the-new-el-sidr%C3%A3-n-sample
#4
Laura Pérez-Criado, Antonio Rosas
This paper aims to improve our understanding of the phylogenetic trait polarity related to hominin forearm evolution, in particular those traits traditionally defined as "Neandertal features." To this aim, twelve adult and adolescent fragmented forelimb elements (including ulnae and radii) of Homo neanderthalensis recovered from the site of El Sidrón (Asturias, Spain) were examined comparatively using three-dimensional geometric and traditional morphometrics. Mean centroid size and shape comparisons, principal components analysis, and phylogenetic signal analysis were undertaken...
May 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28428910/role-of-the-interosseous-membrane-in-preventing-distal-radioulnar-gapping
#5
Frederick W Werner, Matthew R LeVasseur, Brian J Harley, Ashley Anderson
Background Damage to the interosseous membrane (IOM) can alter load transmission between the radius and ulna and decrease their axial stability. Less is known about the effect of IOM sectioning on the transverse stability between the radius and ulna. Purpose The purpose of this study was to quantify the radioulnar gapping at the distal radioulnar joint (DRUJ) during forearm rotation when the IOM was experimentally sectioned while maintaining the integrity of the distal radioulnar ligaments. Methods In 12 fresh-frozen cadaver forearms tested in a combined wrist-forearm simulator, the increase in gap between the radius and ulna, at the level of the DRUJ, was determined during cyclic forearm rotation following IOM sectioning...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28419040/measurement-of-distal-ulnar-hounsfield-units-accurately-predicts-bone-mineral-density-of-the-forearm
#6
Scott C Wagner, Theodora C Dworak, Patrick D Grimm, George C Balazs, Scott M Tintle
BACKGROUND: Hounsfield unit (HU) measurement obtained from computed tomography (CT) scans of the wrist is a potential new screening method for low bone mineral density (BMD). We hypothesized that HU measurements of the ulnar head obtained from CT scans would correlate with BMD assessed with dual x-ray absorptiometry (DXA) scans of the forearm. METHODS: Patients with both upper-extremity CT and DXA scans performed at a single institution were included in the study...
April 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28419031/prognostic-factors-affecting-union-after-ulnar-shortening-osteotomy-in-ulnar-impaction-syndrome-a-retrospective-case-control-study
#7
Soo Min Cha, Hyun Dae Shin, Ki Jun Ahn
BACKGROUND: Ulnar shortening osteotomy (USO) is a widely adopted procedure with excellent outcomes. However, delayed union or nonunion has occasionally been observed. The purpose of this retrospective case-control study was to identify variables affecting osseous consolidation after USO in patients with ulnar impaction syndrome. METHODS: The study included 325 patients who had undergone USO between March 2008 and March 2014. We evaluated the association between union and basic demographic factors as well as preoperative pain (assessed on a visual analog scale [VAS]), range of wrist motion, grip strength, and modified Mayo wrist score...
April 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28399788/distal-radioulnar-joint-functional-anatomy-including-pathomechanics
#8
J R Haugstvedt, M F Langer, R A Berger
The distal radioulnar joint allows the human to rotate the forearm to place the hand in a desired position to perform different tasks, without interfering with the grasping function of the hand. The ulna is the stable part of the forearm around which the radius rotates; the stability of the distal radioulnar joint is provided by the interaction between ligaments, muscles and bones. The stabilizing structures are the triangular fibrocartilage complex, the ulnocarpal ligament complex, the extensor carpi ulnaris tendon and tendon sheath, the pronator quadratus, the interosseous membrane and ligament, the bone itself and the joint capsule...
May 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28391754/time-dependent-recovery-of-outcome-parameters-in-ulnar-shortening-for-positive-ulnar-variance-a-prospective-case-series
#9
Gernot Schmidle, Tobias Kastenberger, Rohit Arora
BACKGROUND: This study evaluates the results of ulnar shortening using the ulna osteotomy locking plate system (UOL; I.T.S. GmbH, Graz, Austria) with special regard to the time-dependent recovery of subjective and objective outcome parameters and surgeons' experiences. METHODS: Ulnar shortening using the UOL was performed on 11 patients (3 men, 8 women) with an average age of 47 ± 19.6 years. Range of motion (ROM) and grip strength were compared with the contralateral hand...
April 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28390188/prediction-of-normal-bone-anatomy-for-the-planning-of-corrective-osteotomies-of-malunited-forearm-bones-using-a-three-dimensional-statistical-shape-model
#10
Flavien Mauler, Christoph Langguth, Andreas Schweizer, Lazaros Vlachopoulos, Tobias Gass, Marcel Lüthi, Philipp Fürnstahl
Corrective osteotomies of the forearm based on 3D computer simulation using contralateral anatomy as a reconstruction template is an approved method. Limitations are existing considerable differences between left and right forearms, and that a healthy contralateral anatomy is required. We evaluated if a computer model, not relying on the contralateral anatomy, may replace the current method by predicting the pre-traumatic healthy shape. A statistical shape model (SSM) was generated from a set of fifty-nine CT scans of healthy forearms, encoding the normal anatomical variations...
April 8, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28385008/use-of-stem-cell-sheets-expressing-bone-morphogenetic-protein-7-in-the-management-of-a-nonunion-radial-fracture-in-a-toy-poodle
#11
Jaeyong Song, Yongsun Kim, Oh-Kyeong Kweon, Byung-Jae Kang
A 12-year-old castrated Toy Poodle was referred to Kangwon National University Animal Hospital with an oligotrophic nonunion fracture in the left distal 1/3 of the radius and an intact ulna. After fixation using a locking plate and screws, adipose-derived mesenchymal stem cell sheets expressing bone morphogenetic protein 7 (BMP-7) were transplanted to the fracture site to enhance the healing activity. The fracture healed at 9 weeks after surgery. In the present case, the mesenchymal stem cell sheets expressing BMP-7 promoted bone regeneration and healing in a nonunion fracture...
April 6, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28373730/cuttable-plate-fixation-for-small-breed-dogs-with-radius-and-ulna-fractures-retrospective-study-of-31-dogs
#12
Gwyneth K Watrous, Noel M M Moens
This retrospective study evaluated complication rates for radius and ulna fractures in small breed dogs in which 1.5 mm to 2.7 mm cuttable bone plates were used for internal fixation. The medical records of all cases from 2004 to 2011 that were presented to our clinic were reviewed. Inclusion criteria were: dogs with body weight < 9 kg, fracture of the radius and ulna with open reduction, and internal fixation utilizing a cuttable bone plate. Thirty-four fractures in 31 dogs met the inclusion criteria. Of 25 dogs that were available for follow-up, all achieved union, minor complications occurred in 9, and major complications occurred in 8...
April 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28372572/distal-appendicular-skeletal-involvement-of-diffuse-large-b-cell-lymphoma-on-technetium-99m-methylenediphosphonate-bone-scintigraphy-and-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-a-case-report
#13
Insook Park, Sungmin Kang
BACKGROUND: We report a case of a patient with appendicular bone involvement of diffuse large B-cell lymphoma visualized by whole-body technetium-99m methylenediphosphonate bone scintigraphy (bone scan) and (18)F-fluorodeoxyglucose positron emission tomography/computed tomography. CASE PRESENTATION: A 73-year-old Asian man who had gingival swelling of the labial area of the left maxillary lateral incisor presented to our institution. Positron emission tomography/computed tomography demonstrated hypermetabolic lesions with maximum standardized uptake values of 12...
April 4, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28370231/radius-and-ulna-fracture-repair-with-the-imex-miniature-circular-external-skeletal-fixation-system-in-37-small-and-toy-breed-dogs-a-retrospective-study
#14
Denise Bierens, Marcos D Unis, Sady Y Cabrera, Philip H Kass, Tina J Owen, Maureen G Mueller
OBJECTIVE: To determine outcome and prognostic factors after radius and ulna fracture repair with a modified IMEX miniature circular external skeletal fixation (MCESF) in small and toy breed dogs. STUDY DESIGN: Retrospective study. SAMPLE POPULATION: Thirty-seven young small and toy breed dogs with 41 radial and ulnar fractures. METHODS: Records of radial and ulnar fractures repaired with a modified IMEX MCESF were reviewed...
March 28, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28368070/-limb-fractures-in-32-small-ruminants-treatment-and-outcome
#15
Johann Kofler, Daniel Hochschwarzer, Kathrin Schieder, Adriana Osová, Britta Vidoni
OBJECTIVE: Retrospective evaluation of the records of 32 small ruminant patients that were treated for limb fractures between 2001 and 2014. MATERIALS AND METHODS: Records were analyzed regarding species, breed, and age of the animals, age, localization, and type of the fracture, the applied treatment method (conservative: using polyvinyl-chloride splints or casts; surgical: internal fixation techniques or limb amputation), and the final outcome. RESULTS: The 16 goats and 16 sheep (18 male, 14 female) had a mean age of 1...
April 3, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28365147/the-bare-area-of-the-proximal-ulna-an-anatomic-study%C3%A2-with-relevance-to-chevron-osteotomy
#16
Rongguang Ao, Xu Zhang, Dejian Li, Fancheng Chen, Jianhua Zhou, Baoqing Yu
PURPOSE: A chevron osteotomy of the ulna is widely used to obtain intra-articular access to the elbow in the treatment of type C distal humerus fractures. The trochlear notch of the proximal ulna is divided into 2 articular parts by the "bare area." Ideally, the olecranon osteotomy should be centered on the bare area to minimize damage to the joint cartilage. The goals of this study were to describe the anatomy of the bare area and design an ideal chevron-shaped osteotomy. METHODS: We dissected 38 cadaver elbows and measured the width of the bare area, the distance between the tip of the triceps insertion and the area on the olecranon cortex corresponding to the bare area...
March 29, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28359639/lateral-para-olecranon-approach-for-the-treatment-of-distal-humeral-fracture
#17
Takuji Iwamoto, Taku Suzuki, Noboru Matsumura, Masaya Nakamura, Morio Matsumoto, Kazuki Sato
PURPOSE: To assess the outcomes of the lateral para-olecranon triceps-splitting approach for the treatment of distal humeral fracture. METHODS: Ten patients (3 males, 7 females) with a mean age of 59 years were retrospectively reviewed. There were 2 A2, 3 C1, and 5 C2 fractures according to the AO/ASIF classification. Types B3 and C3 fractures were excluded from this study because the olecranon osteotomy approach was indicated to visualize the anterior fragment...
March 27, 2017: Journal of 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/28340130/falling-down-on-the-job-evaluation-and-treatment-of-fall-risk-among-older-adults-with-upper-extremity-fragility-fractures
#19
Christine M McDonough, Carrie H Colla, Donald Carmichael, Anna N A Tosteson, Tor D Tosteson, John-Erik Bell, Robert V Cantu, Jonathan D Lurie, Julie P W Bynum
Background: Clinical practice guidelines recommend fall risk assessment and intervention for older adults who sustain a fall-related injury to prevent future injury and mobility decline. Objective: The aim of this study was to describe how often Medicare beneficiaries with upper extremity fracture receive evaluation and treatment for fall risk. Design: Observational cohort. Methods: Participants were fee-for-service beneficiaries age 66 to 99 treated as outpatients for proximal humerus or distal radius/ulna ("wrist") fragility fractures...
March 1, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28318740/upper-limb-dimelia
#20
Takehiko Takagi, Ayano Nojiri, Atsuhito Seki, Shinichiro Takayama, Masahiko Watanabe
A patient with upper limb dimelia including a double scapula, humerus, radius, and ulna, 11 metacarpals and digits (5 on the superior side, 6 on the inferior side) was treated with a simple amputation of the inferior limb resulting in cosmetic improvement and maintenance of range of motion in the preserved limb. During the amputation, the 2 limbs were found to be anatomically separate except for the ulnar nerve, which, in the superior limb, bifurcated into the sensory branch of radial nerve in the inferior limb, and the brachial artery, which bifurcated into the radial artery...
March 16, 2017: Journal of Hand Surgery
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