Abstract：
BACKGROUND/RATIONALE:A 10-year survivorship of 100% was reported for patients with PFC cruciate-retaining prostheses. Beyond 10 years, we observed additional polyethylene wear likely related to thin liners gamma-irradiated in air and were concerned this wear might predispose to implant construct failure. QUESTIONS/PURPOSES:We therefore determined (1) the functional scores at a minimum of 15 years followup, (2) rates of radiographic failure, (3) overall revision rates, and (4) mode of failure after 10 years and the fate of the revised implants. METHODS:We retrospectively reviewed 75 patients with 101 press-fit condylar posterior cruciate-retaining prostheses. At a minimum followup of 15 years, 35 patients (47 knees) were living and evaluated clinically. No patients were lost to followup. RESULTS:There were no revisions during the first 11 years and six reoperations subsequently were performed in five patients (6% overall rate of revision but 12.8% in patients who survived more than 15 years). Three of six revisions had concerning liner wear at 10 years and all six were revised for polyethylene wear. Polyethylene exchange was performed in four of the five patients who underwent revisions, all of whom were doing well at an average of 7.2 years (range, 4.7-9.1 years) after the revision procedure. CONCLUSIONS:At long-term followup, the overall revision rate remained low (6%). For patients surviving 15 years or more, the rate of revision was 12.8% and all revisions were secondary to aseptic sequelae of polyethylene wear. All revisions occurred more than 10 years after the initial procedures. LEVEL OF EVIDENCE:Level IV, therapeutic 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
Malin AS,Callaghan JJ,Bozic KJ,Liu SS,Goetz DD,Sullivan N,Kelley SSdoi
10.1007/s11999-010-1303-ysubject
Has Abstractpub_date
2010-09-01 00:00:00pages
2469-76issue
9eissn
0009-921Xissn
1528-1132journal_volume
468pub_type
杂志文章abstract：:Development leading to local bone differentiation in response to intramuscular and subcutaneous implantation of demineralized bone matrix has been predominantly investigated in rodents. To investigate bone differentiation by induction in primates, diaphyseal bone was harvested from ten male baboons and chemosterilized...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：:Evidence from studies on migration raises serious doubts regarding the part played by fatigue failure of acrylic bone cement in the genesis of aseptic loosening of the components of total hip arthroplasties. Moreover, the viscoelastic properties of cement raise serious doubts concerning the relevance of conventional l...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-199810000-00026
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND:Hybrid revision knee component fixation, in which cement is placed in the metaphysis combined with a cementless diaphyseal engaging stem, provides ease of insertion, possibly improved component alignment, and easier removal if required, compared with fully cemented prostheses. The literature suggests the tec...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1569-0
更新日期：2011-03-01 00:00:00
abstract：:Although the physeal cartilage is considered resistant to invasion by metaphyseal osteosarcoma, no objective clinical proof exists to support this view. Fourteen cases of osteosarcoma of long bones in patients ranging in age from ten to 19 years with open physes were reviewed to determine the incidence of transphyseal...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-07-01 00:00:00
abstract：BACKGROUND:Patients with THA requiring cup revision for acetabular osteolysis may have a stable stem component without loosening. However, it is unclear whether isolated cup revision halts femoral osteolysis progression. QUESTION/PURPOSES:We asked (1) whether and to what degree osteolysis progresses after isolated ace...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2363-y
更新日期：2012-11-01 00:00:00
abstract：:Fourteen knees were studied by a method called spatial location, to determine the contact and load-bearing areas between the femur and the upper tibia in non-loaded and loaded conditions, at various angles of flexion. Under no load, contact occurred primarily on the menisci; the lateral aspects contacted at 0 degrees...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197506000-00027
更新日期：1975-01-01 00:00:00
abstract：:The existence of a specific inorganic pyrophosphatase (PPi ase), distinct from alkaline phosphatase in bone has been suggested but is often regarded as questionable. In the present investigation, several features of PPi ase activity have been demonstrated, which suggest that it represents an enzyme protein different f...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-10-01 00:00:00
abstract：:Osteosarcoma is the most common primary bone malignancy. Despite improvements in therapy, approximately 30% of patients experience pulmonary metastasis. Expression of several growth factors, including VEGF and BMPs, has been implicated in tumor progression and metastatic potential. We hypothesized increased metastatic...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000229333.98781.56
更新日期：2006-09-01 00:00:00
abstract：:Fourteen patients with separation of the distal clavicular metaphysis from the epiphysis were reviewed. These injuries, especially in the older child and adolescent, mimic acromioclavicular separation. However, they are really growth-plate injuries in which the epiphysis and physis maintain their normal anatomic relat...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1984-09-01 00:00:00
abstract：:The current study was done to assess the oncologic outcomes after inadvertent intraoperative contamination in the treatment of musculoskeletal sarcomas, to determine the prognostic significance of these events. Forty-three patients with malignant lesions and either positive margins or intraoperative tumor penetration ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200204000-00013
更新日期：2002-04-01 00:00:00
abstract：:Forty-three consecutive patients who did not have healing of tibial or femoral diaphyseal and metaphyseal fractures and osteotomies for at least 9 months after injury or surgery were examined prospectively for use of high-energy extracorporeal shock waves. Former treatment modalities (cast, external fixator, plate ost...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章
doi：10.1097/00003086-200106000-00014
更新日期：2001-06-01 00:00:00
abstract：:Osteogenic sarcoma, a highly malignant tumor of bone, is generally treated by amputation. This is a report of 19 cases of excision of the entire femur because of skip areas which are occasionally seen. The femur usually has the lowest cure rate according to site of involvement. In total femur replacement, the whole bo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
abstract：:Fifty patients with signs and symptoms of chronic impingement syndrome and/or rotator cuff tear were evaluated with shoulder arthrograms and ultrasonography. Ninety asymptomatic shoulders of a comparable age had ultrasonography to serve as a control group. All controls had normal ultrasonograms with no hypoechoic or s...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-04-01 00:00:00
abstract：UNLABELLED:Reconstruction after periacetabular resection is a challenge. We asked whether the use of pasteurized autologous grafts would provide satisfactory results regarding patient survival, local recurrence, and metastasis, and graft union and functional outcome. We retrospectively reviewed 11 patients having such ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e3181583ae4
更新日期：2007-11-01 00:00:00
abstract：:Patients with anterior cruciate ligament instability resulting from incomplete tears or elongation in continuity without ligament detachment historically have been treated conservatively or by graft replacement. The literature is sparse regarding alternative treatments. The current study presents experience using mono...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200302000-00021
更新日期：2003-02-01 00:00:00
abstract：:Periosteal cells were isolated from young chicks, introduced into cell culture, subcultured, and then inoculated into athymic, nude mice to test the in vivo osteochondrogenic potential of cultured periosteal cells. In monolayer cultures, the adherent periosteal cells showed fibroblastlike morphology and overtly expres...
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：:Fixed flexion contracture can present a technical challenge in total knee arthroplasty. Various techniques of addressing these deformities have been described including additional bony resection, ligamentous releases, and the use of increasing constraint. We retrospectively reviewed the clinical outcomes of 40 patient...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000238801.90090.59
更新日期：2006-11-01 00:00:00
abstract：:The current study determined the temperature rise during reamed tibial intramedullary nailing in vivo. Eighteen adult patients were studied. The tibial medullary canal diameter ranged from 8 to 11 mm and was reamed to at least 1.5 mm above the required nail diameter with AO reamers. Reaming of the medullary cavity ran...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200202000-00031
更新日期：2002-02-01 00:00:00
abstract：:Proximal tibial osteotomy for degenerative genu varus and valgus has an excellent success rate with proper patient selection and technical proficiency. The following are some infrequently recognized pitfalls. Excessive bone loss prevents two plateau weight-bearing after osteotomy, introduces a "teeter effect," and is ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197501000-00034
更新日期：1975-01-01 00:00:00
abstract：:Orthopedic management of the various complications resulting from musculo-skeletal bleeds in the hemophiliac, has now become standard and routine. However, the orthopedist should never minimize the threat of iatrogenic disease resulting from his surgery, or from the hemostatic control necessary for all operations. Ope...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:The purpose of this study was to evaluate the stability of different types of internal fixation requiring anterior, posterior, or combined surgical approaches for the T-type acetabular fracture. Eight specimens were loaded 25 times in a cyclic manner to 150 N for each type of fixation construct evaluated. The model at...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：:Operative treatment of inadequately or imperfectly treated fractures of the distal radius can improve wrist and hand function substantially, but rarely restores the limb to normal. Patients with malunion of the distal radius present either with poor radiographic alignment before complete healing of the fracture (nasce...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000152442.66083.ff
更新日期：2005-02-01 00:00:00
abstract：:Time and patience are the two prerequisites for treatment of the traumatic cord bladder. The experienced physician knows when early intervention is necessary. Intermittent catheterization from onset of injury is as of today the accepted method of treatment in most large centers over the world. "Lack of personnel" is t...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1975-10-01 00:00:00
abstract：:Cartilage function after resurfacing with cell-based transplantation procedures or during the early stages of arthritic disease may be bolstered by the addition of growth factor genes to the transplanted tissue. Insulinlike growth factor-I maintains chondrocyte metabolism in normal cartilage homeostasis and has been s...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200010001-00026
更新日期：2000-10-01 00:00:00
abstract：:Forty-nine children with diaphyseal both-bone forearm fractures were treated with either both-bone intramedullary wire fixation (24), single ulnar intramedullary wire fixation (22), or single radial intramedullary wire fixation (3). Six fractures were open and 43 were closed. A limited open approach to one or both bon...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200209000-00024
更新日期：2002-09-01 00:00:00
abstract：:A ball-and-socket joint is an unusual disturbance of normal ankle development. Previous reports have noted good function and the absence of osteoarthritic change in ankles with this configuration. A 50-year-old man with no history of injury developed an osteoarthritic ball-and-socket deformity of the ankle joint. Asso...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-02-01 00:00:00
abstract：:To learn about the changes appearing in hip muscles after an above-knee amputation, 3-dimensional reconstructions of the hip and thigh region of 12 patients with above-knee amputations were made based on transverse magnetic resonance images. In all patients, the amputations were done at least 2 years before the study ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-10-01 00:00:00
abstract：BACKGROUND:In a previous study, we described the distribution of coronal alignment in a normal asymptomatic population and recognized the occurrence of constitutional varus in one of four individuals. It is important to further investigate the influence of this condition on the joint line orientation and how the latter...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-2898-6
更新日期：2014-01-01 00:00:00
abstract：:A way to prevent polyethylene wear in total hip replacements is to use metal-on-metal bearings. The cup design of these bearings may be a metal inlay in a polyethylene cup. However, these metal inlays are relatively thin and may deform on loading. The purpose of the current study was to determine whether these potenti...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200211000-00052
更新日期：2002-11-01 00:00:00
abstract：:A three-part fracture of the acetabulum occurred in a 74-year-old woman seven years after a McKee-Farrar total hip arthroplasty (THA). The hip was successfully reconstructed using an allogenic femoral head for a bone graft and titanium mesh for reinforcement. Thirty-six months after the operation, the revised THA was ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-03-01 00:00:00
