Abstract：
:Histomorphologic analyses of artificial joint components implanted into bone need special technology for processing and for documentation; published histological work systematically done therefore is rare. The histopathology, three-dimensionally analyzed in a complete sequence of sections is, however, the only precise answer in terms of biocompatibility and bone response. A complete analysis allows a type-related predictable prognosis of an implantation that is at least comparable to a finite element analysis with respect to load transfer to host bone. The histopathologic collection of the ZOW Munich is comprised of more than 5000 nondemineralized bone and joint specimens and more than 500 artificial joint components implanted in the human skeleton for up to 25 years. Fifty-nine implant-bone specimens without signs of loosening already have been processed and analyzed systematically. According to the strain-adapted bone remodelling, different types of anchorage clearly were differentiated and their morphologic substrate could be worked out. Based on that, the cemented standard anchorage could be distinguished histologically from the cemented press-fit procedure, and the noncemented press-fit from the porous ingrowths pattern. In terms of the topography of the bony integration, the proximal and distal press-fit and ingrowth pattern were analyzed; beside that, the cemented and noncemented epiphyseal resurfacings could be defined histologically. In all histologic specimens the remodelling appeared as a result of stress-related strain, reflecting stiffness of the implant and the resistance of bone to deformation. It clearly was worked out that all success of cemented components is based on preserved cancellous bone honeycombs stiffened by bone cement, representing an adaptation of bone in terms of stiffness to the stiff implants.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Draenert KD,Draenert YI,Krauspe R,Bettin Ddoi
10.1097/01.blo.0000150424.59854.7bsubject
Has Abstractpub_date
2005-01-01 00:00:00pages
12-27issue
430eissn
0009-921Xissn
1528-1132pii
00003086-200501000-00003pub_type
杂志文章,评审abstract：:Anteroposterior pelvic roentgenograms of 790 patients admitted for treatment of alcoholism were examined for evidence of osteonecrosis of the femoral head. Laboratory data on these patients, obtained shortly after admission, demonstrated that average serum cholesterol levels were within normal limits and average serum...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-09-01 00:00:00
abstract：:This study examines effects of acute stretch on electrophysiologic properties of rabbit tibial nerve. Compound motor action potentials (CMAP) were measured in 30 rabbits, during and after two hours of acute, graded strain. The rabbits were assigned to one of three groups defined by the degree of stretch (0%, 8%, or 15...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:Ankle arthrodesis treated by external fixation frequently results in complications from pin tract infections, loss of position, nonunion, and malunion. A method of ankle arthrodesis using 6.5-mm cancellous screws as the primary fixation hardware was developed. The most important screw is placed from the posterior mall...
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:Scores derived from comorbidities can help with risk adjustment of quality and safety data. The Charlson and Elixhauser comorbidity measures are well-known risk adjustment models, yet the optimal score for orthopaedic patients remains unclear. QUESTIONS/PURPOSES:We determined whether there was a difference ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,多中心研究
doi：10.1007/s11999-014-3686-7
更新日期：2014-09-01 00:00:00
abstract：:The tuck position used in conjunction with the tuck seat continues to satisfy the important requirements of lumbar spine surgery: satisfactory respiratory exchange, diminished venous oozing, and ample exposure. In 253 operations performed since 1971, minimal postoperative morbidity, including deep vein thrombosis, was...
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：:During the past ten years, approximately 3000 cases of knee arthroscopy have been performed in a CO2 medium. The setup for the use of CO2 is quite simple and is explained here on a step-by-step basis. Advantages are a better visual field and no motion of tissue in the arthroscopic field. The disadvantages are minimal....
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：:Fourteen boys (56%) and 11 girls (44%) 4 to 17 years of age (mean, 12.2 years) who had osteosarcoma and open epiphyseal plates were studied. A possible correlation between transepiphyseal spread of osteosarcoma and radiologic and histopathologic findings was investigated. Epiphyseal plate invasion was detected radiolo...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200004000-00006
更新日期：2000-04-01 00:00:00
abstract：:There are 3 common types of spondylolisthesis: dysplastic; isthmic; degenerative. This classification, presented anew in an article published in this volume, evolved from a discussion by the members of the International Society for the Study of the Lumbar spine. The surgical treatment is designed to correct a combinat...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1976-06-01 00:00:00
abstract：:Eighty-three total knee arthroplasties done at a single university hospital were reviewed specifically to examine the presence of lysis. Components that were radiographically loose were excluded. The incidence of lysis varied significantly with the method of component fixation. The highest incidence of lysis (30%) was...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
abstract：BACKGROUND:Rotational malalignment of total knee arthroplasty (TKA) has been correlated with patellofemoral maltracking, knee instability, and stiffness. CT is the most accurate method to assess rotational alignment of prosthetic components after TKA, but inter- and intraobserver reliability of CT scans for this use ha...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-013-3111-7
更新日期：2014-01-01 00:00:00
abstract：:Supracondylar osteotomy is an alternative to other procedures for realignment of the rheumatoid hindfoot. Of 64 hindfoot operations performed since 1964, 12 were supracondylar osteotomies. The specific indication for this procedure was an ankylosed rheumatoid foot with equinovarus deformity and limited range of tarsal...
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：:Indwelling prosthetic joints may become colonized by microbial biofilms, although the biofilm structure, composition of the microbial community, and physiologic activity of the organisms in these devices are not well understood. New approaches that rely on the use of fluorescent stain technology can be used to charact...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000175120.66051.29
更新日期：2005-08-01 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：:Radial polydactyly, a common congenital problem, most often occurs as thumb duplication. It appears in pentadactylous, polydactylous, and hypoplastic hands and is simulated by complex syndactyly. Classically, there are three categories for radial polydactyly: severe hypoplasia, partial duplication, and total duplicati...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1985-05-01 00:00:00
abstract：:Periostitis in the athlete is a common overuse clinical entity often found in the lower extremity. An analogous overuse syndrome also may occur in the upper extremity. These 2 case reports describe the history, physical findings, radiographic changes, and treatment for periostitis of the upper extremity rarely seen in...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1996-03-01 00:00:00
abstract：:This is a report on a University of Illinois Hospital series of cases of extracapsular base of the neck osteotomy for slipped capital femoral epiphyses. The osteotomy was performed on 20 hips in 16 patients, with a 71/2 year average follow-up. The results of this procedure are encouraging and illustrate the advantages...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-05-01 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：:The current study reviews the early history of surgeon-initiated trial and error development in hip joint arthroplasty and the subsequent methodological evolution to proper criteria for hypothesis testing using bioengineers and other research scientists. The interplay and relationships to industry, universities, scien...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:Orthopaedic surgery represents a specialty in which applicants are abundant, residency slots are limited, and all candidates presumably are qualified. Orthopaedic residency programs have members of the resident selection committee review medical school performance measures for the purpose of screening candidates to in...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1999-05-01 00:00:00
abstract：:The formation of a new bone from the lateral wall of the pelvis following blunt injury occurred in a 55-year-old woman. The bone articulated with the top of the trochanter by means of a synovial-lined joint. The case is an example of the remarkable ability of external forces to remodel newly formed bone into a functio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1979-05-01 00:00:00
abstract：UNLABELLED:The "shrug sign" (inability to lift the arm to 90 degrees abduction without elevating the whole scapula or shoulder girdle) has been associated with a diagnosis of rotator cuff disease. Based on our clinical experience, we hypothesized the shrug sign is not a specific diagnostic sign for this condition, but ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0331-3
更新日期：2008-11-01 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：:Bone-acrylic interface pressure measurements were recorded at the medial interior rasped surfaces of fresh cadaver femurs during digital packing of acrylic bone cement and during insertion and seating of a Trapezoidal-28 femoral total hip component. Plugging of the femoral canal below the tip of the prosthesis stem wa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1976-11-01 00:00:00
abstract：:There is no standardized method reported in the literature to measure ROM of the ankle after a total ankle arthroplasty, which limits the possibility to compare results from the various ankle designs. It seems that most of the measurements are a combination of ankle and midfoot motion, not the tibiotalar joint. A prot...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000132180.69464.84
更新日期：2004-07-01 00:00:00
abstract：:Bilateral simultaneous rupture of the quadriceps tendons is very rare and occurred in an 82-year-old man. This may be the fifth case to have been reported in the English literature. Only minor stress on extensor mechanisms preceded the ruptures. Interrupted mattress sutures restored muscle continuity and function. A "...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-03-01 00:00:00
abstract：BACKGROUND:Persistent inflammatory reaction to wear debris causes periprosthetic osteolysis and loosening. Some authors have advocated pharmaceutical approaches to reduce the inflammatory reaction. Erythromycin has antiinflammatory effects independent of its antimicrobial properties. Although oral erythromycin reported...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-1918-7
更新日期：2011-08-01 00:00:00
abstract：:Soft tissue structures can be replaced by a filamentous carbon-polylactic acid polymer tissue scaffold. A successful replacement requires a secure bond between the synthetic material and living soft tissue. This attachment has been investigated in a rabbit model. In 23 male, white New Zealand rabbits, the proximal thi...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-10-01 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：:The results of two-stage flexor tendon reconstruction in the hand, evaluated in 25 fingers in 20 patients with an average followup of 5 months, were graded on the basis of total range of active flexion and combined extension loss. Two-stage flexor tendon reconstruction can significantly improve the functional status o...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-03-01 00:00:00
abstract：:A primary aim of research in total hip arthroplasty is to extend longevity through improved fixation and decreased wear and osteolysis. Age range of patients receiving hip implants is ever increasing as technology improves and average life span increases. The current report focuses on minimum 10-year results of a prox...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200212000-00011
更新日期：2002-12-01 00:00:00
