Abstract:
:This study was undertaken to evaluate the medial ligamentous stabilizers of the patella in restraining lateral displacement and to assess their relative contribution after individual repair. Seventeen fresh frozen human anatomic specimen knee joints were studied. The specimens were loaded onto a testing instrument that was designed to measure the compliance of the medial and lateral patellar restraints in the coronal plane. Two different cutting and repair sequences were used to test the individual contributions of the patellar ligaments. The medial patellofemoral ligament was found to be the major medial ligamentous stabilizer of the patella. Isolated release resulted in a 50% increase in lateral displacement, and isolated repair restored balance to the patella. In addition, the patellotibial and patellomeniscal ligament complex played an important secondary role in restraining lateral patellar displacement. Isolated repair of these ligaments restored balance to near normal levels. The medial patellofemoral retinaculum played only a minor role in patellofemoral instability. Proximal realignment or medial ligament repair for patellofemoral instability specifically should address repair of the deep layers that contain the restraints to lateral patellar displacement. Failure to include these structures in repair, especially of the medial patellofemoral ligament, may lead to persistent or recurrent instability.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Hautamaa PV,Fithian DC,Kaufman KR,Daniel DM,Pohlmeyer AMdoi
10.1097/00003086-199804000-00021subject
Has Abstractpub_date
1998-04-01 00:00:00pages
174-82issue
349eissn
0009-921Xissn
1528-1132pub_type
杂志文章abstract::For a mean period of 7.8 years, the morphology of knee deformity and its annual changes in 8 patients (16 knees; mean age at the initial examination, 8.4 years) with multiple hereditary exostoses were evaluated radiographically. Knee deformity developed during the growth spurt period. Genu valgum with a femorotibial a...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract::Endometriosis is a disorder resulting from the presence of actively growing and functioning endometrial tissue in aberrant sites outside the uterus. Ectopic implantation of the endometrium can be located throughout the pelvic cavity. Depending on the location of the endometriosis, it can mimic common musculoskeletal p...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract:BACKGROUND:Modern metal-on-metal hip resurfacing arthroplasty designs have been used for over a decade. Risk factors for short-term failure include small component size, large femoral head defects, low body mass index, older age, high level of sporting activity, and component design, and it is established there is a su...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-012-2347-y
更新日期:2012-11-01 00:00:00
abstract::Three patients with osteonecrosis of the femoral head in whom the extent of necrosis increased by repeated episodes of osteonecrosis are described. In all cases the evidence of two attacks of osteonecrosis was detected clearly on magnetic resonance images. The significance of the recurrent attacks of osteonecrosis is ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/01.blo.0000037441.23683.ee
更新日期:2003-01-01 00:00:00
abstract::Twenty of 21 consecutive patients (21 heels) with subcalcaneal pain retractory to conservative treatment managed by resection of the proximal attachment of the plantar fascia and the heel spur, if present, were reviewed retrospectively. The results, at a mean followup of 40 months (range, 12-102 months), using a 100 p...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/00003086-199611000-00023
更新日期:1996-11-01 00:00:00
abstract::Twenty consecutive cases of infected total knee replacements surgically treated between 1990 and 1993 in which complete clinical and financial data were available were reviewed to determine the resources required of the hospital and the surgeon. These results were compared with a similar analysis of a stratified, unse...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/00003086-199610000-00019
更新日期:1996-10-01 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::Palsies of the lower cranial nerves occurred in association with traumatic atlantoaxial dissociations in two patients. The fracture-dislocations sustained were rare injuries and the neurologic complications contributed greatly to their morbidity and mortality. ...
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::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:BACKGROUND:The use of traction during hip arthroscopy is commonly used to provide safe joint access and to improve visualization. However, traction during hip arthroscopy has been associated with complications ranging from transient neuropraxias to devastating soft-tissue necrosis. Trendelenburg positioning may be help...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,随机对照试验
doi:10.1097/CORR.0000000000000804
更新日期:2019-08-01 00:00:00
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journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1097/CORR.0000000000000757
更新日期:2019-10-01 00:00:00
abstract::Periacetabular osteotomy is an extremely effective treatment for the spherical dysplastic hip without significant secondary osteoarthrosis. Yet, the reliability of the procedure in patients with some degree of secondary osteoarthritis, asphericity, or associated deformities remains undefined. The purpose of the curren...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
doi:
更新日期:2002-12-01 00:00:00
abstract::The goals of treatment for patients with metastatic disease are control of pain and maintenance of function. Prosthetic arthroplasty is a useful technique for selected indications. Specific indications include (1) reconstruction of large destructive areas that are not amenable to internal fixation, (2) salvage of fail...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
doi:
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Total joint arthroplasty is widely performed in patients of all races with severe osteoarthritis. Prior studies have reported that African American patients tend to receive total joint arthroplasties in low-volume hospitals compared with Caucasian patients, suggesting potential racial disparity in the qualit...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-011-2032-6
更新日期:2012-04-01 00:00:00
abstract::Thirty intraarticular calcaneal fractures were studied by computed tomography and then treated with a variety of closed methods. A classification of the fractures was devised according to the amount of displacement of the posterior facet. Follow-up evaluation showed that Type I fractures recovered function and healed ...
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::Regional cortical blood flow was measured in 23 adult mongrel dogs using the hydrogen washout technique. Cortical blood flow in the rib was found to be 4.7 +/- 0.8 ml/min/100 ml (n=21). The concept of a dual blood supply to cortical bone is supported since eliminating the medullary supply did not affect the measurable...
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: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:BACKGROUND:Proximal femoral fractures are common in the elderly. The best care depends on expeditious presentation, medical stabilization, and treatment of the condition. QUESTIONS/PURPOSES:We investigated the risk of increased mortality in residents of rural communities secondary to inaccessible facilities and treatm...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-011-2140-3
更新日期:2012-06-01 00:00:00
abstract::This article briefly reviews the history of the use of feedback in artificial limbs. It suggests that researchers have concentrated unduly upon the use of feedback to control prehensile force or joint angle and advocates a broader perspective. In that context, the article presents a comprehensive view of the need for ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
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::The treatment of osteonecrosis of the hip remains a dilemma. Contemporary basic science research focuses on establishing the molecular etiology of this disease with the hope of identifying targets for pharmacologic intervention. Researchers have identified specific genetic polymorphisms that may predispose its develop...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,评审
doi:10.1097/BLO.0b013e3181591c92
更新日期:2007-12-01 00:00:00
abstract::Two sisters exhibit arthrogrypotic changes in the lower extremities associated with a previously undescribed pelvic dysplasia. The pelvic dysplasia is characterized by: severe abnormalities of ossification with markedly widened triradiate cartilages; irregular, notched acetabulae; marked hypoplasia of the ilia; notchi...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1986-06-01 00:00:00
abstract:BACKGROUND:Many patients change hospitals for revision total joint arthroplasty (TJA). The implications of changing hospitals must be better understood to inform appropriate utilization strategies. QUESTIONS/PURPOSES:(1) How frequently do patients change hospitals for revision TJA? (2) Which patient, community, and ho...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章,多中心研究
doi:10.1007/s11999-014-3515-z
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Hip fractures are a major public health concern. For displaced femoral neck fractures, the needs for medical services during hospitalization and extending beyond hospital discharge after total hip arthroplasty (THA) may be different than the needs after THA performed for osteoarthritis (OA), yet these differ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-016-4868-2
更新日期:2017-02-01 00:00:00
abstract:UNLABELLED:Patient demand and surgeon interest in hip resurfacing has recently increased, but surgeons in the United States are relatively inexperienced with this procedure. We determined the learning curve associated with hip resurfacing and compared the rate of early complications of the first 650 hip resurfacings be...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-009-1106-1
更新日期:2010-02-01 00:00:00
abstract::A retrospective clinical review of 100 consecutive patients with extremity sarcomas managed by limb salvage operations was performed to evaluate local tumor control and morbidity. The mean follow-up period was 45.1 months. Overall survival was 86%. There were local recurrences in 3% of patients, and 26 complications i...
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::The treatment of nonunion of the tibia in 40 patients by constant direct current was evaluated in a prospective survey. The method was simple to apply and the complication rate was low, but considerable cooperation is required on the part of patients. The success rate was 85%. When two patients who had significant fra...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1983-09-01 00:00:00
abstract::Antibiotic prophylaxis is indicated only under specific surgical settings. Appropriate antibiotic prophylaxis must take into account the type of surgery, the competence of the host, and the pharmacologic properties of the antibiotic(s). The antibiotic should be given before the surgical procedure and have an antibacte...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:
更新日期:1984-11-01 00:00:00
abstract:BACKGROUND:Although several types of culture medium have been used for preservation of osteochondral allografts, the viability of chondrocytes decreases with increasing storage duration. We previously showed the University of Wisconsin solution is more suitable for graft preservation than culture medium. QUESTIONS/PUR...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
doi:10.1007/s11999-011-2182-6
更新日期:2012-10-01 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