Abstract：
BACKGROUND:Locking titanium plates revolutionized the treatment of osteoporotic and metaphyseal fractures of long bones. However as with any innovation, with time new complications are identified. One of the problems with titanium locking plates is removal of screws, often attributable to cold welding of screw heads into the locking screw holes. Several techniques have been described to overcome this problem. We describe a new easy technique to remove a jammed locking screw in a locking plate that is easily reproducible and suggest an algorithm to determine the method to remove screws from locking plates. CASE DESCRIPTION:A 57-year-old man underwent removal of a locking titanium plate from the distal femur. Because the screws could not be readily removed, we used a new technique to remove the jammed locking screws. A radial cut was made in the plate into the locking screw hole and wedged with an osteotome. This released the screw head from the locking screw hole. The screw holes were connected with radial cuts and jammed locking screws were removed in a similar fashion. LITERATURE REVIEW:Instruments used for removal of locking screws, including conical extraction screws, hollow reamers, extraction bolts, modular devices, and carbide drill bits, have been described. However, these do not always work. PURPOSES AND CLINICAL RELEVANCE:Removing screws from locking titanium plates can be difficult. There is no method of implant removal that can be universally applied. Therefore, this new technique and our algorithm may be used when removing screws from locking titanium plates.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Kumar G,Dunlop Cdoi
10.1007/s11999-010-1508-0subject
Has Abstractpub_date
2011-02-01 00:00:00pages
613-6issue
2eissn
0009-921Xissn
1528-1132journal_volume
469pub_type
杂志文章abstract：:A conservative approach to foot problems is especially useful in patients with diabetes, rheumatoid arthritis, diminished circulatory changes, and those who are too debilitated for surgical treatment. If one will start with either the medial heel wedge or the anterior heel correction, some response should be evident w...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1977-03-01 00:00:00
abstract：:The mode of action of the periosteum in the growth of the long bones was investigated by comparing the activity of the growth plate after hemicircumferential and longitudinal periosteal incisions. Twenty-eight rabbits were divided into three groups. A longitudinal periosteum incision was made on the medial upper tibia...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-11-01 00:00:00
abstract：:A retrospective review was performed on 20 patients treated at the authors' hospital between 1961 and 1981 with noninfected nonunions following primary open reduction and internal fixation (ORIF) of intertrochanteric femoral fractures. All patients were available for follow-up examination. Each patient was interviewed...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：BACKGROUND:Extensive posteromedial release to correct severe varus deformity during TKA may result in mediolateral or flexion instability and may require a constrained implant. We describe a technique combining computer navigation and medial condylar osteotomy in severe varus deformity to achieve a primary goal of liga...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2773-x
更新日期：2013-05-01 00:00:00
abstract：BACKGROUND:Cartilage defects are created on intraarticular osteochondral fragments at the entrance holes of fixation devices when these fragments are fixed to the original sites. Conventional fixation devices hinder repair of these defects and there is a latent risk of secondary osteoarthritis. We therefore developed a...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-2175-5
更新日期：2012-07-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000043044.84315.90
更新日期：2003-01-01 00:00:00
abstract：:A study of the injury fatality rate in an adult population was done in the Moscow region. Investigators determined that side by side with the severity of injury, the direct causes of death were erroneous diagnosis, ungrounded delay of surgical interventions, and lack of and insufficient use of necessary medical care. ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：UNLABELLED:Risk factors to explain the poor survival of patients with osteosarcoma of the pelvis are poorly understood. Therefore, we attempted to identify factors affecting survival and development of local recurrence and metastasis. We retrospectively reviewed 43 patients who had high-grade pelvic tumors and were tre...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0495-x
更新日期：2009-02-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000141903.08075.83
更新日期：2004-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-05-01 00:00:00
abstract：:This paper gives a general introduction to the terminology, concepts, and classifications of external fixators. A clear distinction is made between characteristics typical of the three types of external fixators, simple, clamp, and ring, and those typical of the four standard frames that can be built with each of the ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000201165.82690.f8
更新日期：2006-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-012-2557-3
更新日期：2013-03-01 00:00:00
abstract：:Painless inferior subluxation of the shoulder is a common finding following stroke and is a manifestation of the adynamic nature of the disorder. The weight of the limb is not counterbalanced by shoulder musculature. This is a preliminary report of a simple tenodesis procedure performed in six patients with uniformly ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-05-01 00:00:00
abstract：:The trauma pandemic disproportionately kills and maims citizens of low-income countries although the immediate cause of the trauma is often an industrial export of a high-income country, such as a motor vehicle. Addressing the trauma pandemic in low-income countries requires access to relevant research information reg...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-008-0397-y
更新日期：2008-10-01 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：:Polycentric total knee arthroplasty has been performed at the Mayo Clinic on more than 1,600 knees since July 1970. Two groups of 106 and 101 knee arthroplasties performed between July 1970 and July 1971 and June 1971 and January 1972, respectively, were compared at 5 and 7 years. The technique used exposed the joint ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-11-01 00:00:00
abstract：:The tensile and histologic characteristics of sharply transected Achilles tendons treated by cast immobilization, surgical repair, and surgical repair reinforced with polyglactin mesh were evaluated in 31 rabbits. All modes of tendon treatment resulted in tensile failure at significantly lower loads than in the contra...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-12-01 00:00:00
abstract：:A cross sectional study was performed to try to identify various demographic and radiologic risk factors for disease progression in 50 patients (79 hips) with corticosteroid associated osteonecrosis of the femoral head who had a core decompression. Thirty-one of the hips were in 18 patients who had systemic lupus eryt...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1997-01-01 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
pub_type： 杂志文章
doi：10.1007/s11999-009-0986-4
更新日期：2009-11-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000052935.71325.30
更新日期：2003-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-06-01 00:00:00
abstract：:A prospective study of the accuracy of real-time B-mode ultrasonography in detecting deep venous thrombosis in the proximal veins of the lower extremity was conducted in a consecutive series of total knee arthroplasty (TKA) patients. Ascending venography was used as the diagnostic standard. Ninety-six consecutive TKA ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-12-01 00:00:00
abstract：:Sixty consecutive revision total hip arthroplasties were performed with bulk allograft bone supported by the Kerboull reinforcement acetabular device in 53 patients from 1980 to 1987. The average age of the patients at the time of hip revision was 57.7 years. Acetabular bone loss according to the American Academy of O...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200009000-00025
更新日期：2000-09-01 00:00:00
abstract：:Pulled elbow and hypermobility of joints are frequently seen in young children, the latter occurring in 5% of the general population. A group of 100 children with pulled elbows, composed of 64 girls and 36 boys with a mean age of 25.5 months, and their parents were checked for joint hypermobility in a prospective stud...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-08-01 00:00:00
abstract：:Persons with good recovery of function following their initial poliomyelitis are now, more than 30 years later, experiencing new weakness, fatigue, and muscle pain. The likelihood of muscle overuse being the cause of this late functional loss was investigated by dynamic electromyography (EMG) and foot-switch stride an...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-08-01 00:00:00
abstract：:Twenty primary osteosarcomas of bone and two osteosarcomas metastatic to the lung were examined by electron microscopy. The tumor cells, whether from an area exhibiting chondroid, osteoid or collagenous matrix, showed common abnormalities in configuration and fine structure. The cells tended to be spindle-shaped with ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-197509000-00006
更新日期：1975-09-01 00:00:00
abstract：:Computer-aided design and computer-aided manufacturing (CAD/CAM) systems for the design and manufacture of limb prostheses have recently become commercially available. However, rigorous evaluations of these systems have not been performed to determine whether they produce sockets that fit as well as or better than soc...
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:Compared with conventional polyethylene, first-generation highly cross-linked polyethylenes have low wear, but controversy exists regarding their reduced mechanical strength and/or retained free radicals. Second-generation highly cross-linked polyethylenes have been developed to reduce wear, maintain mechani...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,多中心研究
doi：10.1007/s11999-011-2177-3
更新日期：2012-06-01 00:00:00
abstract：:A proprioception measurement system was designed and constructed to evaluate lower-limb knee joint proprioception in ten above-knee amputees. The system permitted the testing of subjects in a position simulating late swing phase of gait. The threshold for detection of slow passive motion and the ability to reproduce s...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1992-11-01 00:00:00
