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. This has resulted in the introduction of new implant designs engineered to improve postoperative flexion. We reviewed factors known to influence postoperative flexion after total knee arthroplasty. An in vivo, weightbearing fluoroscopic kinematic analysis of multiple high-flexion total knee arthroplasty designs was performed, and demonstrated high levels of weightbearing flexion (125 degrees) can be obtained in some, but not all, evaluated designs. Multiple evaluations of the same high-flexion total knee arthroplasty design performed by different surgeons and involving different patient populations revealed one study group with high weightbearing flexion and other groups that did not achieve high flexion. This suggests numerous factors other than implant design influence eventual flexion, including the patient, surgical technique, knee kinematics, perioperative complications, and postoperative physiotherapy. LEVEL OF EVIDENCE:Level V, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Dennis DA,Komistek RD,Scuderi GR,Zingde Sdoi
10.1097/BLO.0b013e31812f785dsubject
Has Abstractpub_date
2007-11-01 00:00:00pages
53-60eissn
0009-921Xissn
1528-1132journal_volume
464pub_type
杂志文章,评审abstract：:The purpose of the current study was to evaluate the long-term results of the Kinematic I condylar prosthesis with retention of the posterior cruciate ligament. One hundred sixty-eight total knee arthroplasties in 118 patients (mean age, 65.2 years; range, 21-88 years) were inserted with cement, an all-polyethylene pa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200107000-00007
更新日期：2001-07-01 00:00:00
abstract：:In 63 anatomic specimens of the shoulder, the coracohumeral ligament was found to be a clear, well-developed structure in 59 and absent or vestigial in four. The origin of the coracohumeral ligament was consistently found at the base of the coracoid process. The insertion was more variable, between the rotator interva...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-07-01 00:00:00
abstract：BACKGROUND:Soluble factors released from chondrocytes can both enhance and induce chondrocyte-like behavior in cocultured dedifferentiated cells. The ability to similarly prime and modulate biosynthetic activity of differentiated cells encapsulated in a three-dimensional environment is unknown. QUESTIONS/PURPOSES:To u...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1772-7
更新日期：2011-10-01 00:00:00
abstract：BACKGROUND:Management of the cuff-deficient arthritic shoulder has long been challenging. Early unconstrained shoulder arthroplasty systems were associated with high complication and implant failure rates. The evolution toward the modern reverse shoulder arthroplasty includes many variables of constrained shoulder arth...
journal_title：Clinical orthopaedics and related research
pub_type： 历史文章,杂志文章
doi：10.1007/s11999-010-1733-6
更新日期：2011-09-01 00:00:00
abstract：:Management of nonunions requires careful and critical assessment of the true biologic status of the fracture. The mere radiographic persistence of a fracture line does not invariably indicate nonunion. Ten percent of fractures considered initially to be ununited in this series healed spontaneously without further trea...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-11-01 00:00:00
abstract：:Selection of the suitable treatment method for an infected hip arthroplasty requires careful assessment of patient-related variables and expected treatment goals. The basic treatment options include antibiotic suppression, open debridement, resection arthroplasty, arthrodesis, reimplantation of another prosthesis, and...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-200403000-00010
更新日期：2004-03-01 00:00:00
abstract：:Eight patients with unstable fractures involving the articular surface and metaphyseal-diaphyseal bone of the proximal or distal tibia associated with severe soft-tissue injury or compounding wound were treated with irrigation, debridement, tetanus inoculation, antibiotic prophylaxis, and combined internal fixation wi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-07-01 00:00:00
abstract：BACKGROUND:The skeleton plays a critical structural role in bearing functional loads, and failure to do so results in fracture. As we evaluate new therapeutics and consider treatments to prevent skeletal fractures, understanding the basic mechanics underlying whole bone testing and the key principles and characteristic...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-011-1784-3
更新日期：2011-08-01 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：:Many patients with acute herniated nucleus pulposus can be expected to resolve their conditions with conservative management. To date, however, no reliable sign has been described in the literature that can predict which patient will respond. This report shows that the ability to achieve normal lumbar extension repres...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：UNLABELLED:To determine whether inferior vena cava (IVC) filter placement protects patients with musculoskeletal tumors from fatal pulmonary embolisms (PE), we retrospectively analyzed the records of 81 patients who underwent surgery for pelvic and lower extremity malignancies. All 81 patients received an IVC filter an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0607-7
更新日期：2009-01-01 00:00:00
abstract：BACKGROUND:Childhood obesity is associated with reduced quality of life, physical fitness, and a higher prevalence of lower extremity (LE) pain; however, it is unclear whether and how these factors are related. QUESTIONS/PURPOSES:For this study we asked if obese children with LE pain (LE+) had higher BMI-Z scores, low...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2620-0
更新日期：2013-04-01 00:00:00
abstract：:Experimental studies of osteomyelitis have been hampered by methodologic problems. For inducing experimental anaerobic osteomyelitis, the medullary cavity of the proximal tibial metaphysis of five New Zealand white rabbits was excavated and filled with a polyvinyl alcohol sponge. On the right side, 1 ml of a suspensio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-04-01 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
pub_type： 杂志文章
doi：10.1007/s11999-009-1151-9
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND:An entrustable professional activity describes a professional task that postgraduate residents must master during their training. The use of simulation to assess performance of entrustable professional activities requires further investigation. QUESTIONS/PURPOSES:(1) Is simulation-based assessment of reside...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-015-4553-x
更新日期：2016-04-01 00:00:00
abstract：:Onset of firing for the quadriceps, hamstrings, and gastroc soleus groups during running, both on a treadmill and over ground, was determined in seven normal adult male subjects. Surface and wire electrode data were collected simultaneously from 959 individual gait cycles. The mean velocity over ground was 274 +/- 38 ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-06-01 00:00:00
abstract：BACKGROUND:Most contemporary total disc replacements (TDRs) use conventional orthopaedic bearing couples such as ultrahigh-molecular-weight polyethylene (polyethylene) and cobalt-chromium (CoCr). Cervical total disc replacements incorporating polyetheretherketone (PEEK) bearings (specifically PEEK-on-PEEK bearings) hav...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-5041-7
更新日期：2016-11-01 00:00:00
abstract：:A prospective study ascertained the effect of lateral retinacular release and/or excision of the infrapatellar fat pad on patellar vascularity after total knee arthroplasty. Fifty patients (70 knees) had postoperative technetium bone scans, which revealed a higher incidence of vascular compromise of the patella after ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-11-01 00:00:00
abstract：:Discography as a diagnostic method is not a panacea and has distinct limitations. It should not replace myelography but is a useful adjunct, particularly in those cases in which myelography has not been helpful and in which conservative management has failed to produce improvement. It is particularly helpful in determ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197503000-00016
更新日期：1975-01-01 00:00:00
abstract：:Reconstruction operations for severe acetabular defects using bone grafting and a bipolar hemiarthroplasty retrospectively reviewed in 81 hips between 1983 and 1985. The most common indication was failed total hip arthroplasty. Bone grafts consisted of cancellous bone, bone blocks, and wafer-type grafts used singly or...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-07-01 00:00:00
abstract：BACKGROUND:There is growing interest in value-based health care in the United States. Statistical analysis of large databases can inform us of the factors associated with and the probability of adverse events and unplanned readmissions that diminish quality and add expense. For example, increased operating time and hig...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-016-5147-y
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND:Coronal malalignment occurs frequently in TKA and may affect implant durability and knee function. Designed to improve alignment accuracy and precision, the patient-specific positioning guide is predicated on restoration of the overall mechanical axis and is a multifaceted new tool in achieving traditional g...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1996-6
更新日期：2012-01-01 00:00:00
abstract：:A harmonious cooperation between the oncologist, orthopedist and radiotherapist can result in a more comfortable, more functional, and in some instances, longer life for the patient. Chemotherapy is an effective and important component of the total management of a patient with metastatic cancer. It provides a mode of ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1982-09-01 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：:Contemporary management of Grade IIIB open tibial fractures has evolved to include intravenous antibiotics, thorough interval surgical debridement, rigid skeletal fixation, early local or free tissue myoplasty, and liberal use of autogenous bone graft beneath a clean, stable wound. External fixation has been the skele...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,meta分析
doi：10.1097/00003086-199611000-00003
更新日期：1996-11-01 00:00:00
abstract：:Predictors of success of orthopaedic residents on the American Board of Orthopaedic Surgery (ABOS) examination are controversial. We therefore evaluated numerous variables that may suggest or predict candidate performance on the ABOS examination. We reviewed files of 161 residents (all graduates) from one residency pr...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-009-0939-y
更新日期：2009-09-01 00:00:00
abstract：:It has been reported that flexibility of the neck decreases after cervical laminoplasty. It also is known that kyphosis can be an unfavorable result after posterior decompression surgery of the cervical spine. To examine whether a decrease in cervical mobility resulting from contracture of the cervical spine helps pre...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200208000-00016
更新日期：2002-08-01 00:00:00
abstract：:Of 221 children with head injuries and resultant deep coma followed for long-term problems, 156 became totally independent, functional individuals, only 61 lacking normal cognition and speech. Reconstructive surgical procedures for residual spasticity was necessary in 45 patients. Achilles lengthenings were the most c...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197507000-00035
更新日期：1975-07-01 00:00:00
abstract：BACKGROUND:Hemiarthroplasty has been shown superior to internal fixation for displaced femoral neck fractures (FNF) in the first 2 years. However, there are unanswered questions about the performance of hemiarthroplasty over the longer term compared with internal fixation. QUESTIONS/PURPOSES:We sought to compare hemia...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s11999-013-3245-7
更新日期：2014-01-01 00:00:00
abstract：UNLABELLED:The treatment and prognosis of labral tears of the hip depend primarily on whether there is concomitant injury of the adjacent acetabular articular cartilage. We asked whether a delamination cyst on the preoperative plain radiographs correlated with delamination of the acetabular articular cartilage at the t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0564-1
更新日期：2009-04-01 00:00:00
