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 between five experienced hip surgeons and a national safety survey database study we previously published, which included 89 surgeons and 537 hip resurfacings. Patient demographics and adverse events were recorded. Specific features on pre- and postoperative radiographs were measured in a blinded fashion by a single observer. There were 13 major complications (2.0%), which is 3.7 times lower than our national safety survey complication rate of 7.4%. All fractures occurred in the first 25 cases performed. The complication rate was higher for the first 25 procedures (5.6%) compared with the second 25 procedures (1.6%). For experienced hip surgeons, the learning curve for avoiding early complications was short, 25 cases or less. The learning curve for achieving the desired component positioning radiographically was much longer, 75 to 100 cases or more. If achieving some ideal component position proves important for long-term function and implant survival, improved instrumentation and surgical techniques would be necessary to shorten the learning curve. LEVEL OF EVIDENCE:Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Nunley RM,Zhu J,Brooks PJ,Engh CA Jr,Raterman SJ,Rogerson JS,Barrack RLdoi
10.1007/s11999-009-1106-1subject
Has Abstractpub_date
2010-02-01 00:00:00pages
382-91issue
2eissn
0009-921Xissn
1528-1132journal_volume
468pub_type
杂志文章abstract：BACKGROUND:Long-term evaluation of knee arthroplasty should provide relevant information concerning the durability and performance of the implant and the procedure. Because most arthroplasties are performed in older patients, most long-term followup studies have been performed in elderly cohorts and have had low patien...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-014-3744-1
更新日期：2015-01-01 00:00:00
abstract：UNLABELLED:Results of total knee arthroplasty have demonstrated excellent pain relief and increased patient function, particularly in activities such as walking. This procedure has not always met the needs of certain ethnic and religious groups as well as younger patients who require greater magnitudes of knee flexion....
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/BLO.0b013e31812f785d
更新日期：2007-11-01 00:00:00
abstract：:People are the major source of bacterial contamination in the hospital environment, and to control environmental bacteria, the shedding potential of people must be controlled. In a conventional operating room, the more complete the surgical attire worn by everyone in the room, the better the control; i.e., body exhaus...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：BACKGROUND:The incidence of heterotopic ossification (HO) after hip arthroscopy reportedly ranges from less than 1.0% to 6.3%. Although open debridement has been described and a few series mention arthroscopic debridement, the techniques for arthroscopic excision of HO have not been described in detail. We describe the...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2627-6
更新日期：2013-04-01 00:00:00
abstract：BACKGROUND:Revision TKA is a serious adverse event with substantial consequences for the patient. As the demand for TKA rises, reducing the risk of revision TKA is becoming increasingly important. Predictive tools based on machine-learning algorithms could reform clinical practice. Few attempts have been made to combin...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000001343
更新日期：2020-09-01 00:00:00
abstract：:A human osteosarcoma cell line, HuO9, was established from a tumor that was heterotransplanted into athymic nude mice. Antiserum against nude mouse spleen cells was added to the early passage cultures to eliminate the host fibroblastic cells. The cell line retained a high activity of liver/bone/kidney-type alkaline ph...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:Postoperative duplex ultrasonography screening after total hip arthroplasty has been shown to identify patients who may require treatment or additional monitoring for venous thromboembolic disease. The potential for manifestation of venous thromboembolic disease subsequent to screening remains a concern. The objective...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199904000-00022
更新日期：1999-04-01 00:00:00
abstract：:The increasing number of hip and knee arthroplasties implies a greater likelihood of periprosthetic fractures and need for successful treatment options. We asked whether in situ effective lengthening of the indwelling prosthesis by a custom-made slotted hollow intramedullary nail provided a reasonable alternative to t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e3181468b20
更新日期：2007-10-01 00:00:00
abstract：:The Knee Society Total Knee Arthroplasty Radiographic Evaluation and Scoring System was introduced to encourage uniform reporting of radiographic outcome. However, the method for evaluation of radiolucent lines has been shown to be unreliable. Because it has been shown that reducing the complexity of classification sy...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000153077.79573.a4
更新日期：2005-05-01 00:00:00
abstract：:The regeneration of bone remains an elusive yet important goal in the field of orthopaedic surgery. Despite its limitations, autogenous cancellous bone grafting continues to the most effective means by which bone healing is enhanced clinically. Biosynthetic bone grafts currently are being developed as an alternative t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-199910001-00011
更新日期：1999-10-01 00:00:00
abstract：:Developing and maintaining outcomes for total hip arthroplasty, resulting in meaningful and usable data, presents many challenges for today's clinician. Outcomes data collected must show patients' clinical, functional, and overall quality of life status. Data also must be appropriate to illustrate efficiency, effectiv...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1997-11-01 00:00:00
abstract：:Severe involvement of the wrist in rheumatoid arthritis poses great functional restrictions in eating, maintaining personal hygiene, and in performing general daily activities. Twenty-six Swanson radiocarpal implant arthroplasties were performed in 23 patients. Patients' average age was 57 years, with a preoperative d...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1982-06-01 00:00:00
abstract：:The results of 65 consecutive revision total knee arthroplasties performed for mechanical failure were reviewed. Fifty-nine of the knees were followed for an average of five years (range, 2-10 years). The types of implants used included: total condylar, posterior stabilized, total condylar III, and the kinematic rotat...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
abstract：:Using a testing apparatus that allows axial loading and displacement in the sagittal, axial, and coronal planes, 6 ankles were tested under experimental conditions intended to model the Lauge-Hansen pronation external rotation injury. All specimens were rotated through a continuous range of sagittal motion with the an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199607000-00043
更新日期：1996-07-01 00:00:00
abstract：:Fifty years ago Albright contributed the following to understanding osteoporosis: (1) He recognized it as a deficiency of formation, not of mineralization of bone matrix; (2) he observed that 40 of 42 patients with osteoporosis before age 65 were women past menopause or young women postoophorectomy; (3) he concluded t...
journal_title：Clinical orthopaedics and related research
pub_type： 传,历史文章,杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：:A consecutive series of 125 hybrid total hip arthroplasties were performed in 120 patients by a single surgeon and were observed for an average of 8.6 years (range, 7-11 years). There were 38 men and 82 women with an average age of 71 years (range, 25-87 years) at the time of surgery. The diagnoses included primary an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1996-12-01 00:00:00
abstract：:The factors which determine the rate and amount of acetabular growth in congenital dislocation of the hip are ill-understood. A prospective radiological study has been devised in order to assess the influence of the age of congruity, femoral anteversion and neck/shaft angles on acetabular growth. To be included, the c...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1976-09-01 00:00:00
abstract：UNLABELLED:Total knee arthroplasty frequently is required during early adulthood in patients with advanced juvenile rheumatoid arthritis. We queried patients on issues of importance to them, asked whether they were satisfied with surgical outcomes, and ascertained their postoperative status. We retrospectively reviewed...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-007-0010-9
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Clinical research in orthopaedics typically reports the presence of an association after rejecting a null hypothesis of no association using an alpha threshold of 0.05 at which to evaluate a calculated p value. This arbitrary value is a factor that results in the current difficulties reproducing research fin...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/CORR.0000000000000843
更新日期：2019-10-01 00:00:00
abstract：BACKGROUND:Increasing the number of women in surgical subspecialties has been challenging, especially in orthopaedics, in which the percentage of women has remained relatively the same for the past several decades. Certain subspecialties, such as pediatric orthopaedics, have a greater proportion of women than other ort...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000823
更新日期：2020-07-01 00:00:00
abstract：BACKGROUND:Research addressing the burden of musculoskeletal disease in low- and middle-income countries does not reflect the magnitude of the epidemic in these countries as only 9% of the world's biomedical resources are devoted to addressing problems that affect the health of 90% of the world's population. Little is ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-015-4254-5
更新日期：2015-06-01 00:00:00
abstract：:Percutaneous fixation of hand fractures is a common technique that takes advantage of the subcutaneous nature of hand bones, their small size, and their limited loading potential for stress placed on hardware. Percutaneous wire fixation supplements cast fixation when plaster cannot hold particular reductions, and allo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-200006000-00014
更新日期：2000-06-01 00:00:00
abstract：:A histologically normal insertion site does not regenerate following rotator cuff tendon-to-bone repair, which is likely due to abnormal or insufficient gene expression and/or cell differentiation at the repair site. Techniques to manipulate the biologic events following tendon repair may improve healing. We used a sh...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-007-0112-4
更新日期：2008-03-01 00:00:00
abstract：:This biographical sketch on John R. Moore corresponds to the historic text, The Classic: Cartilaginous-cup Arthroplasty in Ununited Fractures of the Neck of the Femur (1948), available at DOI 10.1007/s11999-011-1974-z. ...
journal_title：Clinical orthopaedics and related research
pub_type： 传,评论,杂志文章
doi：10.1007/s11999-011-1976-x
更新日期：2011-10-01 00:00:00
abstract：:A review of clinical records and radiographs revealed that five of 10 patients with conjoined twinning (three of six ischiopagus and two of two pyopagus twins) had congenital vertebral anomalies including hemivertebrae (3), multiple thoracic anomalies (1), right hemisacral agenesis (1), and three lumbar vertebra (1). ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200012000-00017
更新日期：2000-12-01 00:00:00
abstract：:In juvenile kyphosis (JK), the roentgenographic defects correspond to the sites of large translucent areas of the collagen-free tissue in the cartilaginous end plates of vertebral bodies. The extent of the roentgenographic lesions is proportional to the number and size of these translucent areas. The gradual transitio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:The ultrastructural localization of calcium in the articular cartilage, meniscus, and synovium of patients with calcium pyrophosphate dihydrate (CPPD) crystal deposition disease was examined by using potassium pyroantimonate. Focal areas with deposition of CPPD crystals in each tissue showed electron-dense precipitate...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-03-01 00:00:00
abstract：:Osteochondritis dissecans of the capitellum produces an area of focal necrosis that may result in a potentially unstable relationship between the capitellum and the radial head. Seven patients with developmental instability of the radial head secondary to osteochondritis dissecans of the capitellum treated between 198...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199705000-00006
更新日期：1997-05-01 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
pub_type： 杂志文章,评审
doi：10.1007/s11999-009-0993-5
更新日期：2009-10-01 00:00:00
abstract：:The design features of an implant system can be crucial to the success of cementless total knee arthroplasty (TKA). The implant system described in this study incorporates anatomic features including an asymmetric tibial tray that is smaller laterally than medially, and a deep trochlear-grooved femoral component. Two ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
