Abstract：
:Histologic sections from 12 en bloc surgical specimens were studied in order to clarify the pathogenesis of bursal-side rotator cuff tears (BSRCTs). The specimens consisted of the bony insertion, the partially torn area, and the musculotendinous junction of the supraspinatus tendon. There were eight men and four women, with an average age of 48.7 years. Trauma was noted in three instances. All patients exhibited clinical evidence of subacromial impingement, which was confirmed at surgery. Histologic sections were stained with azan or hematoxylin and eosin. All the tears developed from within 1 cm of the insertion. The depth of the tears varied from a superficial flap to a nearly full-thickness tear. Microscopically, the sections demonstrated several abnormalities in addition to degeneration. At the site of insertion and in the distal stump, local disruptions of the normal four layers of enthesis and areas of hypervascularity were observed in all sections. The proximal stumps were rounded, retracted, and avascular, with abundant chondrocytes. No active repair was noted in the proximal stumps. The pathogenesis of BSRCTs appears to be related to: (1) a combination of aging and precarious vascularity of the tendon, (2) repetitive movements of the arm at above-horizontal levels, (3) injury, and (4) especially subacromial-tendon impingement.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Fukuda H,Hamada K,Yamanaka Ksubject
Has Abstractpub_date
1990-05-01 00:00:00pages
75-80issue
254eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract：:This study explored the possibility that altered sensitivities of the dorsal root and dorsal root ganglion to neuroactive substances released in inflamed tissue may be involved in radicular pain. The chemical sensitivities of the dorsal root and ganglion of rats were examined by monitoring nerve membrane potential. En...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199912000-00036
更新日期：1999-12-01 00:00:00
abstract：:A prospective study of 236 patients with neglected femoral neck fractures was done to determine the usefulness of a preoperative classification based on the radiologic changes that occur at the site of the fracture. Thirty-four patients were observed in Group I, 125 patients were observed in Group II, and nine patient...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：2005-02-01 00:00:00
abstract：:Patient-controlled analgesia (PCA) is a concept that permits patients to administer a prescribed dose of narcotic to themselves when they experience pain. Six patients developed colonic pseudoobstruction after the use of morphine sulfate administered via a PCA infuser. Early recognition and prompt treatment make this ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
abstract：:Magnetic resonance imaging (MRI) is proving to be an effective means for evaluating the shoulder. The use of a surface coil and high resolution scanning techniques have allowed detailed analysis of the normal anatomy of the shoulder. When evaluating for shoulder pathology, the choice of imaging plane and pulse sequenc...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1989-07-01 00:00:00
abstract：UNLABELLED:We conducted a prospective study of 1214 consecutive primary TKAs to compare the deep prosthetic infection rate between obese and nonobese patients during the first 12 months after surgery. We also sought to determine whether patient or surgical variables such as comorbidities, age, gender, blood transfusion...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0551-6
更新日期：2009-06-01 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：:No agreement exists on how coordinate flexion and extension movements of the interphalangeal joints of the long fingers of the hand are performed. A cinematic study in 18 healthy volunteers was done to assess the objective sequence of beginning and ending of movement in the eight free movements of the hand in which th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1999-05-01 00:00:00
abstract：BACKGROUND:Revision of the infected hip arthroplasty with major bone loss is difficult. Attempts to restore bone stock with structural allograft are controversial. QUESTIONS/PURPOSES:We assessed the (1) reinfection rate; (2) rerevision rate; (3) radiographic graft union, resorption, and implant migration; (4) Harris h...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1673-1
更新日期：2011-04-01 00:00:00
abstract：:Ninety-two patients with congenital pseudoarthrosis (infantile nonunion) were treated with pulsing electromagnetic fields (PEMF) in the United States and Europe in the past eight years. This represents the largest group of patients with infantile nonunions in which a common treatment modality has been used. Excluding ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1982-05-01 00:00:00
abstract：:Ankle pain after uncomplicated ankle fractures poses a diagnostic and therapeutic challenge, especially in joints that exhibit insignificant radiographic changes. Ankle joint arthroscopy has become an important diagnostic and therapeutic tool for such cases. Adhesion of the distal tibiofibular syndesmosis, as yet an u...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:The goal of this study was to determine if obesity is a risk factor for total joint arthroplasty. This was a retrospective review of 130 patients treated with either primary total hip arthroplasty or primary total knee arthroplasty during a two-year period (154 consecutive arthroplasties). The patients were placed in ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:Forty male New Zealand white rabbits were treated with immobilization and forcible manipulation of the right knee known to cause ectopic bone formation in the quadriceps muscle. The animals were also treated with either: A) A total radiation dose of 1840 rad (18.4 Gy); B) A 0.5 mg/kg/day oral dose of prednisolone; C) ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1988-04-01 00:00:00
abstract：:Biopsy is an integral part of the overall management of patients with soft-tissue sarcoma. The types of biopsy are fine needle, trocar, open incision or en bloc excision. There are advantages and disadvantages of each. Open biopsy requires strict adherence to a number of surgical principles. Proper execution requires ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1993-04-01 00:00:00
abstract：:During the working years, rheumatic conditions are the foremost cause of disability in the United States. Disability evaluation for Social Security applicants and Workers' Compensation patients is commonplace in orthopedic practices. Yet, formal education in this aspect of patient care is rare both during and after re...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-08-01 00:00:00
abstract：:Between 1976 and 1980, 81 knees in 59 patients 75 years of age or older, underwent primary total knee arthroplasty with a cemented, condylar femoral component and a cemented, moderately conforming, all polyethylene tibial component. All patients were followed up until death, revision surgery, or for a minimum of 10 ye...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1999-10-01 00:00:00
abstract：:A 22-year-old man suffered two noncontiguous burst fractures of the thoracic spine after minor motor vehicular trauma. He was diagnosed with pathologic spinal burst fracture associated with osteogenesis imperfecta Sillence Type 1A. The diagnosis was based on the relatively minor nature of the trauma, clinical characte...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1993-04-01 00:00:00
abstract：:An osteosarcoma of the talus occurred in a 21-year-old man. The tumor had been mistaken for a fibrosarcoma, but its osteogenic nature was demonstrated by multiple sectioning of the entire talus. Nineteen months after amputation the patient died from pulmonary metastases. Osteosarcoma in the talus seems not to have bee...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1980-07-01 00:00:00
abstract：:Nonunion of allograft-host junction after bone transplantation is not uncommon, and its treatment frequently is problematic. To improve the understanding of these nonunions, a retrospective review was performed of 163 nonunions in 945 patients who underwent allograft transplantation (17.3%) for various benign and mali...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200101000-00014
更新日期：2001-01-01 00:00:00
abstract：:The use of fluoroscopy has enabled orthopedic surgeons to become technically more proficient. In addition, these surgical procedures tend to have less associated patient morbidity by decreasing operative time and minimizing the area of the operative field. The trade-off, however, may be an increased risk of radiation ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-11-01 00:00:00
abstract：:The treatment of hip disorders in adolescents and young adults has evolved rapidly during the past decade because of enhanced understanding of prearthritic and early arthritic hip disease combined with improved diagnostic skills, better patient selection criteria, and refinements in alternative surgical procedures. De...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000193511.91643.2a
更新日期：2005-12-01 00:00:00
abstract：:To calculate the tibial wedge size in preoperative planning of high tibial osteotomy, the weight-bearing line (center femoral head to center tibiotalar joint) is first restored to a selected position on the lateral tibial plateau. Ten full-standing roentgenograms were examined and used to derive mathematical formulas ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1992-01-01 00:00:00
abstract：:This article presents four recent areas of research in biomechanics with clinical application. The first area describes quantification of the functional condition of the lower extremity using biomechanical parameters based on theoretical assumptions for a new mathematical model of walking. The second area describes th...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-05-01 00:00:00
abstract：:Long-term results of total hip replacement by low-friction arthroplasty show a consistent and reproducible outcome for relief of pain, increased mobility, and function in most patients followed for five to 15 years after surgery. In a review of 1009 consecutive operations, the rate of reoperation and potential failure...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1987-12-01 00:00:00
abstract：:A retrospective epidemiological study was performed to determine whether postmenopausal osteoporosis is a hereditary condition. Frequency of fractures was calculated in women whose mothers had suffered vertebral fractures after a low-energy trauma three decades earlier. The frequency of fractures was compared to the f...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：:Semitendinosus anatomic reconstruction (STAR) rebuilds the major anatomic bands of the anterior cruciate ligament (ACL) and provides isometric ligamentous relationships. STAR secures a graft firmly enough to allow intraoperative testing and early motion. It provides a graft comparable in strength with a normal ACL and...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：BACKGROUND:Prophylactic surgical treatment of the femur is commonly offered to patients with metastatic disease who have a high risk of impending pathologic fracture. Prophylactic fixation is associated with improved functional outcomes in appropriate patients selected based on established criteria, but the perioperati...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/CORR.0000000000000489
更新日期：2018-12-01 00:00:00
abstract：:Insufficient posterior tibial tendons in 28 specimens from patients with clinical Stage II or III disease were examined to clarify the etiology of adult-acquired flatfoot deformity. Hematoxylin and eosin and Masson trichrome-stained sections of formalin-fixed tissue were viewed in plain and polarized light. We perform...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000218759.42805.43
更新日期：2006-09-01 00:00:00
abstract：:In situ hybridization and ultrastructural immunohistochemistry were used to study the synthesis and distribution of 2 bone matrix proteins, bone sialoprotein and osteopontin, in the proximal tibial epiphysis in 21-, 32-, and 84-day-old rats. Bone sialoprotein messenger ribonucleic acid expression was restricted to cel...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199609000-00033
更新日期：1996-09-01 00:00:00
abstract：:The indication for otherwise established lateral plate fixation in fractures of the calcaneus becomes relative when severe comminution (Sander's Type III and IV) of the bone involves concomitant massive soft-tissue swelling. The calcaneus is shortened, Böhler's angle flattened, and lateral bulging and varus deformity ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-05-01 00:00:00
abstract：:In certain circumstances osteotomy of the greater trochanter in total hip arthroplasty is of benefit. To attack the problem of nonunion following trochanteric osteotomy, the authors apply several different wiring techniques. To quantify the efficacy of these approaches, they have reviewed 804 consecutive total hip art...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
