abstract：BACKGROUND:Although pulsed electromagnetic fields (PEMFs) are used to treat delayed unions and nonunions, their mechanisms of action are not completely clear. However, PEMFs are known to affect the expression of certain genes. QUESTIONS/PURPOSES:We asked (1) whether PEMFs affect gene expression in human osteoblastlike...

journal_title：Clinical orthopaedics and related research

authors： Sollazzo V,Palmieri A,Pezzetti F,Massari L,Carinci F

更新日期：2010-08-01 00:00:00

abstract：BACKGROUND:To avoid ischemic necrosis, compartment syndrome is a surgical emergency treated with decompression once identified. A potentially lethal, oxidant-driven reperfusion injury occurs after decompression. N-acetylcysteine is an antioxidant with the potential to attenuate the reperfusion injury. QUESTIONS/PURPOS...

journal_title：Clinical orthopaedics and related research

authors： Kearns SR,O'Briain DE,Sheehan KM,Kelly C,Bouchier-Hayes D

更新日期：2010-08-01 00:00:00

abstract：BACKGROUND:Infections following hip and knee replacements can compromise the function and durability of arthroplasty. When these infections occur during the immediate postoperative period, irrigation and débridement can be attempted to salvage the implant. Prior studies have reported varying results likely due to lack ...

journal_title：Clinical orthopaedics and related research

authors： Van Kleunen JP,Knox D,Garino JP,Lee GC

更新日期：2010-08-01 00:00:00

abstract：BACKGROUND:Osteoid osteoma has a nidus surrounded by sclerotic bone with a size usually less than 20 mm. Its diagnosis is made on typical presentation of nocturnal pain and imaging findings. Excision of the niduses, which are often small and difficult to precisely identify, sometimes may result in resection of surround...

journal_title：Clinical orthopaedics and related research

authors： Akhlaghpoor S,Aziz Ahari A,Arjmand Shabestari A,Alinaghizadeh MR

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:Untreated hip dysplasia can result in a degenerative process joint and secondary osteoarthritis at an early age. While most periacetabular osteotomies (PAOs) are performed to relieve symptoms, the osteotomy is presumed to slow or prevent degeneration unless irreparable damage to the cartilage has already occ...

journal_title：Clinical orthopaedics and related research

authors： Mechlenburg I,Nyengaard JR,Gelineck J,Soballe K,Troelsen A

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:The ideal pedicle entry point for the thoracic spine is described as the base of the superior facet at the junction of the lateral and middle thirds of the pedicle. Investigators have reported its accuracy in curves less than 90 degrees . QUESTIONS/PURPOSES:Our aim was to measure the accuracy of this entry ...

journal_title：Clinical orthopaedics and related research

authors： Modi HN,Suh SW,Hong JY,Yang JH

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:The causes of rotator cuff tendon rupture are multifactorial and still unclear. Intrinsic and extrinsic factors have been implicated as predisposing risk factors for rotator cuff rupture. Previous studies have suggested a relationship between elevated serum lipid profiles and tendon ruptures, although not ro...

journal_title：Clinical orthopaedics and related research

authors： Abboud JA,Kim JS

更新日期：2010-06-01 00:00:00

abstract：:Treatment options for giant cell tumors of the distal tibia include curettage and cement packing, curettage and bone grafting, or resection and reconstruction for aggressive tumors. Curettage of aggressive tumors often leads to severe bone loss requiring reconstruction. Allograft and autograft may be effective options...

journal_title：Clinical orthopaedics and related research

authors： Economopoulos K,Barker L,Beauchamp C,Claridge R

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:Degenerative rotator cuff tears are increasing with the aging population, and healing is not uniform after surgery. Rotator cuffs may show improved healing when biologic factors are added during surgery. QUESTIONS/PURPOSES:We asked: (1) What cellular processes are involved in normal bone-to-tendon healing? ...

journal_title：Clinical orthopaedics and related research

authors： Cheung EV,Silverio L,Sperling JW

更新日期：2010-06-01 00:00:00

abstract：:This biographical sketch of John Gregory Smith corresponds to the historic text, The Classic: Pathological Appearances of Seven Cases of Injury of the Shoulder-Joint: With Remarks, available at DOI 10.1007/s11999-010-1231-x . ...

journal_title：Clinical orthopaedics and related research

authors： Brand RA

更新日期：2010-06-01 00:00:00

abstract：:Reports using the Constant-Murley score often lack details regarding how strength measurement was performed, which may have an important impact on the results obtained. A description of the measurement is especially important when patients are unable to adopt the prescribed position of 90 degrees shoulder abduction, l...

journal_title：Clinical orthopaedics and related research

authors： Hirschmann MT,Wind B,Amsler F,Gross T

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:Subchondral insufficiency fracture of the femoral head occurs mainly in elderly patients with osteoporosis. Spontaneous resolution is observed after nonoperative treatment in some patients whereas other show progressive joint destruction requiring THA. Several studies report the occurrence of subchondral ins...

journal_title：Clinical orthopaedics and related research

authors： Ishihara K,Miyanishi K,Ihara H,Jingushi S,Torisu T

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND:Various head-preserving procedures have been used for young patients with osteonecrosis of the femoral head (ONFH) to avert the need for THA. However, none of these techniques are accepted universally because of the technical difficulties, complications, or mixed results that often are difficult to reproduce...

journal_title：Clinical orthopaedics and related research

authors： Zhao D,Wang B,Guo L,Yang L,Tian F

更新日期：2010-05-01 00:00:00

abstract：UNLABELLED:Patellar resurfacing (PR) in total knee arthroplasty (TKA) is controversial. The Outerbridge classification of cartilage defects in the patella is commonly used in the literature. The purpose of this study was to determine if the Outerbridge classification can predict the need for PR as part of total knee ar...

journal_title：Clinical orthopaedics and related research

authors： Rodríguez-Merchán EC,Gómez-Cardero P

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND:Rotating-hinge total knee prostheses may be used for the treatment of global instability about the knee. The designs of previous generations were associated with suboptimal outcomes. QUESTIONS/PURPOSES:We evaluated the clinical and radiographic outcomes of salvage knee reconstructions using modern-generatio...

journal_title：Clinical orthopaedics and related research

authors： Hernández-Vaquero D,Sandoval-García MA

更新日期：2010-05-01 00:00:00

abstract：:Interposition grafting material is used frequently to treat osteoarthritis of the base of the thumb or tendinous and ligamentous injuries of the hand. The observation of duplicated tendons in the first dorsal compartment of the hand prompted us to explore the possibility of using the accessory abductor pollicis longus...

journal_title：Clinical orthopaedics and related research

authors： Bravo E,Barco R,Bullón A

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND:The benefits of robotic techniques for implanting femoral components during THA are still controversial. QUESTIONS/PURPOSES:The purpose of this study was to prospectively compare the results and complications of robotic-assisted and hand-rasping stem implantation techniques. METHOD:The minimum followup was...

journal_title：Clinical orthopaedics and related research

authors： Nakamura N,Sugano N,Nishii T,Kakimoto A,Miki H

更新日期：2010-04-01 00:00:00

abstract：UNLABELLED:Ankle arthroplasty is increasingly used to treat advanced ankle arthritis. Earlier prostheses have given way to second-generation implants, on which we are accumulating medium-term data. The Scandinavian Total Ankle Replacement (STAR) is a three-component uncemented implant in wide use in Europe and the only...

journal_title：Clinical orthopaedics and related research

authors： Karantana A,Hobson S,Dhar S

更新日期：2010-04-01 00:00:00

abstract：:Aneurysmal bone cysts are benign active or aggressive bone tumors that commonly arise in the long bones, especially the femur, tibia, and humerus and the posterior elements of the spine. Aneurysmal bone cysts affect all age groups but are more common before skeletal maturity (first two decades of life). They usually i...

journal_title：Clinical orthopaedics and related research

authors： Chan G,Arkader A,Kleposki R,Dormans JP

更新日期：2010-04-01 00:00:00

abstract：BACKGROUND:Fixation of unstable ankle fractures, including fixation of posterior malleolus fracture fragments with the attached, intact posteroinferior tibiofibular ligament (PITFL), reportedly provides more stable fixation than transsyndesmotic screws. QUESTIONS/PURPOSES:To confirm this observation we compared the Fo...

journal_title：Clinical orthopaedics and related research

authors： Miller AN,Carroll EA,Parker RJ,Helfet DL,Lorich DG

更新日期：2010-04-01 00:00:00

abstract：UNLABELLED:Giant cell tumors of bone are sometimes locally aggressive and may metastasize, although uncommonly. We attempted to identify associations of clinical and histopathologic parameters with metastasis, the long-term outcome with metastases, and the best treatment. We identified distant metastases in 24 of 470 p...

journal_title：Clinical orthopaedics and related research

authors： Viswanathan S,Jambhekar NA

更新日期：2010-03-01 00:00:00

abstract：UNLABELLED:Acetabular retroversion (AR) alters load distribution across the hip and is more prevalent in pathologic conditions involving the hip. We hypothesized the abnormal orientation and mechanical changes may predispose certain individuals to stress injuries of the femoral neck. We retrospectively reviewed the ant...

journal_title：Clinical orthopaedics and related research

authors： Kuhn KM,Riccio AI,Saldua NS,Cassidy J

更新日期：2010-03-01 00:00:00

abstract：UNLABELLED:THA in young patients is challenging regarding restoration and survival because patients are young, active, and tend to have disturbed anatomy. We asked whether a three-dimensional custom cementless stem could restore hip function, decrease osteolysis and wear, and enhance stem survival in young patients. We...

journal_title：Clinical orthopaedics and related research

authors： Flecher X,Pearce O,Parratte S,Aubaniac JM,Argenson JN

更新日期：2010-03-01 00:00:00

abstract：:The number of studies reporting on outcomes after total ankle arthroplasty is continuously increasing. As the use of valid outcome measures represents the cornerstone for successful clinical research, we aimed to identify the most frequently used outcome instruments in ankle arthroplasty studies and to analyze the evi...

journal_title：Clinical orthopaedics and related research

authors： Naal FD,Impellizzeri FM,Rippstein PF

更新日期：2010-03-01 00:00:00

abstract：UNLABELLED:Resurfacing arthroplasty has become an attractive option for young patients who want to maintain a high activity level. One recent study reported modestly increased activity levels for patients with resurfacing compared to standard total hip arthroplasty (THA). We conducted a prospective randomized clinical ...

journal_title：Clinical orthopaedics and related research

authors： Garbuz DS,Tanzer M,Greidanus NV,Masri BA,Duncan CP

更新日期：2010-02-01 00:00:00

abstract：:Current-generation metal-on-metal hip resurfacing implants (SRAs) have been in widespread global use since the 1990s, and in the United States, specific implants have recently been approved for clinical use. Many recent publications describe short-term survivorship achieved by either implant-designing surgeons or high...

journal_title：Clinical orthopaedics and related research

authors： Corten K,MacDonald SJ

更新日期：2010-02-01 00:00:00

abstract：:This Classic article is a reprint of the original work by Virgil P. Gibney, Chapter XVIII. Operative Treatment in Chronic Articular Ostitis. An accompanying biographical sketch of Virgil P. Gibney, MD, is available at DOI 10.1007/s11999-009-1166-2 . The Classic Article is (c)1884 and is abridged from Gibney VP. Operat...

journal_title：Clinical orthopaedics and related research

authors： Gibney VP

更新日期：2010-02-01 00:00:00

abstract：UNLABELLED:Patient demand and surgeon interest in hip resurfacing has recently increased, but surgeons in the United States are relatively inexperienced with this procedure. We determined the learning curve associated with hip resurfacing and compared the rate of early complications of the first 650 hip resurfacings be...

journal_title：Clinical orthopaedics and related research

authors： Nunley RM,Zhu J,Brooks PJ,Engh CA Jr,Raterman SJ,Rogerson JS,Barrack RL

更新日期：2010-02-01 00:00:00

abstract：:This biographical sketch of Marshall R. Urist corresponds to the historic texts, The Classic: Bone Morphogenetic Protein, available at DOI 10.1007/s11999-009-1068-3; The Classic: A Morphogenetic Matrix for Differentiation of Cartilage in Tissue Culture, available at DOI 10.1007/s11999-009-1069-2; and The Classic: A Mo...

journal_title：Clinical orthopaedics and related research

authors： Brand RA

更新日期：2009-12-01 00:00:00

abstract：:Bone morphogenic proteins (BMPs) may have neurotrophic functions but there is limited evidence of these functions in the peripheral nervous system. We therefore investigated the expression of BMPs and BMP receptors (BMPRs) in normal and injured peripheral nerves. In 10 of 15 Sprague-Dawley rats, a 3-mm segment of scia...

journal_title：Clinical orthopaedics and related research

authors： Tsujii M,Akeda K,Iino T,Uchida A

更新日期：2009-12-01 00:00:00

abstract：:Although bone stress injuries are common in male military trainees, it is not known how common they are in female trainees. It also is unclear whether asymptomatic bone stress injuries heal if intensive training is continued. We prospectively followed 10 female trainees of a military Reserve Officer Course. The subjec...

journal_title：Clinical orthopaedics and related research

authors： Niva MH,Mattila VM,Kiuru MJ,Pihlajamäki HK

更新日期：2009-11-01 00:00:00

abstract：:The Rhodococcus species rarely cause musculoskeletal infections, with only two cases reported in the literature. We report the case of a 53-year-old woman who had an infection develop after first metatarsophalangeal joint fusion. A year after surgery, she continued to have pain and swelling with nonunion. She underwen...

journal_title：Clinical orthopaedics and related research

authors： Roy M,Sidhom S,Kerr KG,Conroy JL

更新日期：2009-11-01 00:00:00

abstract：UNLABELLED:Compressive osseointegration technology, which provides immediate, mechanically compliant endoprosthetic fixation, has been adapted for massive proximal tibial reconstructions in an attempt to avoid aseptic failure encountered with conventional stems. A retrospective review of 16 patients with resected tumor...

journal_title：Clinical orthopaedics and related research

authors： O'Donnell RJ

更新日期：2009-11-01 00:00:00

abstract：:Economics influences how medical care is delivered, organized, and progresses. Fee-for-service payment encourages delivery of services. Fee-for-individual-service, however, offers no incentives for clinicians to efficiently organize the care their patients need. Global capitation provides such incentives; it works wel...

journal_title：Clinical orthopaedics and related research

authors： Luft HS

更新日期：2009-10-01 00:00:00

abstract：UNLABELLED:Internal hemipelvectomy is performed for pelvic sarcomas when the tumor can be safely resected without sacrificing the entire extremity. Wide exposure and awareness of major neurovascular structures are crucial to the success of this surgery. Various modifications on the standard utilitarian approach have be...

journal_title：Clinical orthopaedics and related research

authors： Lackman RD,Crawford EA,Hosalkar HS,King JJ,Ogilvie CM

更新日期：2009-10-01 00:00:00

abstract：:The 2001 Institute of Medicine report entitled Unequal Treatment: Confronting Racial and Ethnic Disparities in Health Care pointed out extensive healthcare disparities in the United States even when controlling for disease severity, socioeconomic status, education, and access. The literature identifies several groups ...

journal_title：Clinical orthopaedics and related research

authors： Dykes DC,White AA 3rd

更新日期：2009-10-01 00:00:00

abstract：:Subjective evaluations often are used after knee arthroplasty to quantify function; however, these scores may be influenced by pain and/or function of the nonoperated limb. Multiple influences increase variability of these scores, which in turn may result in a greater change in score required to be considered clinical...

journal_title：Clinical orthopaedics and related research

authors： Jacobs CA,Christensen CP

更新日期：2009-09-01 00:00:00

abstract：:High wear rates and high patient ion levels have been associated with high (> 55 degrees) cup inclination angles for metal-on-metal surface replacements. Wear rates and patterns have been simulated for ceramic-on-ceramic bearings by applying microseparation to replicate head offset deficiency. We tested 39-mm metal-on...

journal_title：Clinical orthopaedics and related research

authors： Leslie IJ,Williams S,Isaac G,Ingham E,Fisher J

更新日期：2009-09-01 00:00:00

abstract：:Computer-assisted navigation systems for hip resurfacing arthroplasty are designed to minimize the chance of implant malposition. However, there is little evidence computer navigation is useful in the presence of anatomical deformity. We therefore determined the accuracy of an image-free resurfacing hip arthroplasty n...

journal_title：Clinical orthopaedics and related research

authors： Pitto RP,Malak S,Anderson IA

更新日期：2009-09-01 00:00:00

abstract：:Infected arthroplasties reportedly have a lower eradication rate when caused by highly resistant and/or polymicrobial isolates and in these patients most authors recommend intravenous antibiotics. We asked whether two-stage revision with interim oral antibiotics could eradicate these infections. We prospectively follo...

journal_title：Clinical orthopaedics and related research

authors： Cordero-Ampuero J,Esteban J,García-Cimbrelo E

更新日期：2009-09-01 00:00:00