Abstract：
:The variability in alignment of the natural patellar groove was determined about various anatomic axes of the femur, using 3 plane radiographs and electronic digitization. After the patellar groove was identified and marked on 15 anatomic specimen femurs, radiographs were taken in the coronal, sagittal, and transverse planes so that principal anatomic axes could be outlined. Through electronic digitization, a 3-dimensional representation of the patellar groove was constructed about the distal anatomic axis, mechanical axis, transepicondylar axes, and transcondylar axes. Regarding these 4 principal anatomic axes, the variability in orientation of the patellar groove was profound in both coronal and transverse planes, typically involving a range of 11 degrees to 16 degrees about the mean. The average orientation most closely approximated the perpendicular to the transepicondylar axis in the coronal plane; however, the range varied extensively. None of the anatomic axes tested proved reliable as a reference axis for proper position of the patellar groove, and this study shows that the orientation of the natural patellar groove is more variable than previously suspected. The failure of femoral components to accommodate this variability may explain many complications associated with the patellar component in total knee arthroplasty.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Feinstein WK,Noble PC,Kamaric E,Tullos HSdoi
10.1097/00003086-199610000-00009subject
Has Abstractpub_date
1996-10-01 00:00:00pages
64-73issue
331eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:We evaluated the healing rate, complications, and functional outcomes in 32 adult patients with very short metaphyseal fragments in fractures of the distal tibia treated with a polyaxial locking system. The average distance from the distal extent of the fracture to the tibial plafond was 11 mm. All fractures healed an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0459-1
更新日期：2009-03-01 00:00:00
abstract：:Operative grading of loosening and histologic examination of the periprosthetic tissues and the femoral and acetabular bone-cement interfaces were undertaken in 72 revised resurfacing hip arthroplasties. By correlating the degree of macroscopic and microscopic loosening at the bone-cement interface, a classification o...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-06-01 00:00:00
abstract：:A stylized wedge-shaped defect was created in the medial plateau of autopsy specimens of the tibia to evaluate methods for fixation in total knee arthroplasty. A series of tibial components was inserted by five different methods. With each method loading of up to 1780 N axially and a varus load of 1340 N at 28 Newton-...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-04-01 00:00:00
abstract：:A 61-year-old man who received a porous-metal-coated knee implant returned eight months later with chronic synovitis, instability, and loosening of his artificial joint. Subsequently, metal beads were detected in the joint space and soft tissues and were also embedded in the articulating surface of the tibial componen...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-09-01 00:00:00
abstract：:Comminuted fractures of the femoral shaft, especially when combined with fractures of the hip, may be difficult to treat. A four-sided titanium alloy locking nail with transfixing screws was designed in 1967 and allows compression of the fracture site. If necessary, the nail may be inserted without intraoperative roen...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-11-01 00:00:00
abstract：BACKGROUND:Adverse local tissue reactions (ALTR) around metal-on-metal (MOM) hip arthroplasties are increasingly being recognized as a cause of failure. These reactions may be associated with intraoperative tissue damage and complication rates as high as 50% after revision. Although MRI can identify ALTR in MOM hips, i...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-2788-y
更新日期：2014-02-01 00:00:00
abstract：:A 59-year-old woman developed a histiocytic response to methylmethacrylate debris in a loose total hip arthroplasty. This reaction eroded through the medial wall of the acetabulum, producing a pelvic mass and presenting with urinary symptoms. A combination of an abdominal approach for removal of the pelvic mass and a ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-02-01 00:00:00
abstract：:In adult rabbits, a unilateral subcapital osteotomy of the femoral neck was performed to induce avascularity. One half of the osteotomy sites were fixed with a magnetic resonance imaging (MRI) compatible absorbable pin and the other osteotomies had no fixation. The femoral heads were studied at three, five, and 12 day...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-12-01 00:00:00
abstract：:Equinus foot disorder is a common problem for patients with cerebral palsy who are able to ambulate. Botulinum toxin A is a recommended method of treatment for temporary reduction of muscle tone. The efficacy of repeated botulinum toxin A injections in the calf muscles was evaluated in a clinical trial involving 21 ch...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章
doi：10.1097/00003086-200201000-00021
更新日期：2002-01-01 00:00:00
abstract：:This is a review of 13 patients with chronic osteomyelitis treated at the author's institution using techniques similar to the management of giant cell tumors of bone. This included aggressive serial debridements and appropriate antibiotic coverage and subsequent bone-grafting or soft-tissue coverage procedures. The n...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:The effect of indomethacin on heterotopic and orthotopic bone formation in rats was analyzed with respect to dose and time of initiation of drug administration. Three weeks after implantation of demineralized bone matrix, the ash weight of implants from animals receiving the highest doses of indomethacin was approxima...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-03-01 00:00:00
abstract：BACKGROUND:Wide variation exists in reported prevalence estimates and management standards of developmental dysplasia of the hip (DDH). Discrepancies in diagnosticians' opinions may explain some of this variation. QUESTIONS/PURPOSES:We sought to determine (1) the consistency with which pediatric orthopaedic surgeons r...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-2846-5
更新日期：2013-06-01 00:00:00
abstract：BACKGROUND:The innate immune system can recall previous immunologic challenges and thus respond more effectively to subsequent unrelated challenges, a phenomenon called trained immunity. Training the innate immune system before surgery might be a potential option to prevent bone and joint infection. QUESTIONS/PURPOSES...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000001461
更新日期：2020-11-01 00:00:00
abstract：BACKGROUND:The alpha-defensin test has been previously demonstrated to be highly accurate in the diagnosis of prosthetic joint infection (PJI), nearly matching the Musculoskeletal Infection Society definition for PJI. However, the relationship between alpha-defensin levels and differing infecting organism has not yet b...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-015-4152-x
更新日期：2015-07-01 00:00:00
abstract：:The osseous tunnel technique of anterior cruciate ligament (ACL) reconstruction was compared to the over-the-top (OTT) technique in vivo. A prosthesis replaced the ACL in 35 dogs by one of three methods: double osseous tunnels, OTT, or a combined method utilizing the unique Y shape of the prosthesis by placing one for...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-06-01 00:00:00
abstract：UNLABELLED:Flexion instability after cruciate-retaining total knee arthroplasty has been well documented. We identified an analogous patient group with symptomatic flexion instability without dislocation after primary posterior stabilized total knee arthroplasty. We sought to determine the typical symptoms and exam fin...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200511000-00018
更新日期：2005-11-01 00:00:00
abstract：:The elution of antibiotics from antibiotic-impregnated polymethylmethacrylate (PMMA) beads was measured in mongrel dogs. The antibiotics, used in mixture with Simplex cement, included cefazolin (Ancef; 4.5 g/40 g cement powder), ciprofloxacin (Cipro; 6 g/40 g powder), clindamycin (Cleocin; 6 g/40 g powder), ticarcilli...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-05-01 00:00:00
abstract：:Playground safety recently has received increasing attention from parents and municipalities. Orthopaedic surgeons treat a large number of the more than 350,000 injuries per year sustained on the play areas of this country's school, home, and community play areas. A parent brings a child to the playground for fun, hea...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000057780.39965.2c
更新日期：2003-04-01 00:00:00
abstract：BACKGROUND:Idiopathic osteoarthritis (OA) is a common diagnosis leading to hip arthroplasty. Patients undergoing unilateral hip arthroplasty often wonder whether their other hip will follow the same path as the one that was operated on, and if so, when? There also are limited data available to predict from AP radiograp...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-4888-y
更新日期：2016-08-01 00:00:00
abstract：:Frederic Jay Cotton (Fig. 1) was born in Prescott, Wisconsin, and educated at Harvard. After postgraduate study in New York and in Europe, he returned to Boston where he had an association with most of the important hospitals. In addition to great surgical talent, he also was an able administrator and medical politici...
journal_title：Clinical orthopaedics and related research
pub_type： 传,古典文章,历史文章,杂志文章
doi：
更新日期：1987-12-01 00:00:00
abstract：BACKGROUND:Historically, achieving stability for the unstable total hip arthroplasty (THA) with revision surgery has been achieved inconsistently. Most of what we know about this topic comes from reports of high-volume surgeons' results; the degree to which these results are achieved in the community is largely unknown...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-3344-5
更新日期：2014-03-01 00:00:00
abstract：UNLABELLED:Osteoporotic spinal deformities with global sagittal imbalance have devastating effects on patients. However, treatment is difficult and there is a high risk of perioperative medical and mechanical complications. Patients with osteoporotic spinal deformities are not ideal candidates for posterior pedicle sub...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000200237.22308.93
更新日期：2006-02-01 00:00:00
abstract：BACKGROUND:Patellofemoral osteoarthritis (OA) and anterior knee pain sometimes are considered contraindications for unicompartmental knee arthroplasty (UKA). However, several studies have demonstrated excellent patient-reported outcome scores in patients with patellofemoral OA treated with medial mobile-bearing UKA. Be...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000738
更新日期：2019-09-01 00:00:00
abstract：:Twenty-nine patients with tibial non-union or delayed union were treated by onlay grafting, using long struts from the ipsilateral fibula and without disturbing the non-union site. Internal fixation and excessive dissection can be avoided. Follow-up in 28 patients showed solid healing in all; 20/28 patients united the...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:A computer-assisted model has been developed to improve the results of surgical techniques for reconstruction of hip dysplasia. This method assesses the coverage and congruency of the femoral head by evaluating multiple factors that may influence surgical planning. It achieves a more reliable image because the measure...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-07-01 00:00:00
abstract：BACKGROUND:Local drug delivery has substantial potential to prevent infections compared with systemic delivery. Although calcium sulfate (CaSO(4)) has been studied for local drug delivery and two types are commercially available, it is unknown whether they differentially release antibiotics. QUESTIONS/PURPOSES:We dete...
journal_title：Clinical orthopaedics and related research
pub_type：
doi：10.1007/s11999-011-1911-1
更新日期：2011-11-01 00:00:00
abstract：UNLABELLED:Grade III Campanacci lesions are traditionally treated with wide resections based on their postulated aggressiveness and potential for local recurrence and metastasis. The purpose of this study was to determine if there was a difference in local recurrence rates of Grade II and III lesions treated with intra...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000180051.27961.c3
更新日期：2005-09-01 00:00:00
abstract：BACKGROUND:Patient-specific cutting blocks have been touted as a more efficient and reliable means of achieving neutral mechanical alignment during TKA with the proposed downstream effect of improved clinical outcomes. However, it is not clear to what degree published studies support these assumptions. QUESTIONS/PURPO...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-014-3804-6
更新日期：2015-01-01 00:00:00
abstract：BACKGROUND:Postanesthesia care is a costly component of overall surgical care. In the ambulatory setting, regional anesthesia has been shown for multiple surgical procedures to either decrease postanesthesia care unit (PACU) length of stay (LOS) or completely bypass it altogether. This has not been demonstrated in a la...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-3336-5
更新日期：2014-05-01 00:00:00
abstract：BACKGROUND:It is easy to accurately measure web site usage and to quantify key parameters such as page views, site visits, and more complex variables using commercially available tools that analyze web site log files and search engine use. This information can be used strategically to guide the design or redesign of a ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1333-5
更新日期：2010-10-01 00:00:00
