Abstract：
BACKGROUND:Three-dimensional imaging (CT and MRI) is the gold standard for detecting femoral head-neck junction malformations in femoroacetabular impingement, yet plain radiographs are used for initial diagnostic evaluation. It is unclear, however, whether the plain radiographs accurately reflect the findings on three-dimensional imaging. QUESTIONS/PURPOSES:We therefore: (1) investigated the correlation of alpha angle measurements on plain radiographs and radial reformats of CT scans; (2) determined which radiographic views are most sensitive and specific in detecting head-neck deformities present on CT scans; and (3) determined if specific radiographic views correlated with specific locations on the radial oblique CT scan. METHODS:We retrospectively reviewed 41 surgical patients with preoperative CT scans (radial oblique reformats) and plain radiographs (AP pelvis, 45° Dunn, frog lateral, and crosstable lateral). Alpha angles were measured on plain radiographs and CT reformats. RESULTS:The complete radiographic series was 86% to 90% sensitive in detecting abnormal alpha angles on CT. The maximum alpha angle on plain radiographs was greater than that of CT reformats in 61% of cases. Exclusion of the crosstable lateral did not affect the sensitivity (86%-88%). The Dunn view was most sensitive (71%-80%). The frog lateral showed the best specificity (91%-100%). Substantial correlations (intraclass correlation coefficients, 0.64-0.75) between radiograph and radial oblique CT position were observed, including AP/12:00 (superior), Dunn/1:00 (anterolateral), frog/3:00 (anterior), and crosstable/3:00 (anterior). CONCLUSIONS:For diagnostic and treatment purposes, a three-view radiographic hip series (AP pelvis, 45° Dunn, and frog lateral) effectively characterizes femoral head-neck junction malformations. LEVEL OF EVIDENCE:Level II, diagnostic 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
Nepple JJ,Martel JM,Kim YJ,Zaltz I,Clohisy JC,ANCHOR Study Group.doi
10.1007/s11999-012-2510-5subject
Has Abstractpub_date
2012-12-01 00:00:00pages
3313-20issue
12eissn
0009-921Xissn
1528-1132journal_volume
470pub_type
杂志文章abstract：:Heat shock proteins (HSPs) are often upregulated following oxidative and other forms of stress. Based on reports of excessive apoptosis in torn supraspinatus tendon and mechanically loaded tendon cells, we hypothesized heat shock proteins may be present in rodent and human models of tendinopathy due to their central r...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-008-0265-9
更新日期：2008-07-01 00:00:00
abstract：:The authors studied 10 consecutive patients with closed femoral shaft or supracondylar fractures who were nonambulatory and who were treated by reamed retrograde intramedullary nailing via an intercondylar notch approach. The study consisted of five women and five men with an average age of 60.7 years (range, 40-89 ye...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200004000-00026
更新日期：2000-04-01 00:00:00
abstract：UNLABELLED:Ten patients who had reconstruction of the acromion and deltoid in a painful dysfunctional shoulder after an acromionectomy were reviewed with respect to pain, range of motion, strength, patients' satisfaction, and complications. There were four total acromionectomies, five subtotal acromionectomies, and one...
journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章
doi：10.1097/01.blo.0000146535.77776.5f
更新日期：2005-01-01 00:00:00
abstract：BACKGROUND:Patients with severe lower extremity trauma have significant disability 2 years after injury that worsens by 7 years. Up to 15% seek late amputation. Recently, an energy-storing orthosis demonstrated improved function compared with standard orthoses; however, the effect when integrated with rehabilitation ov...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-014-3609-7
更新日期：2014-10-01 00:00:00
abstract：:Pathologic fractures of the proximal femur secondary to benign bone tumors often are difficult to treat because of specific anatomic features of this region and the aggressiveness of the tumors. Between 1986 and 1996, 11 patients presented with a pathologic fracture of the proximal femur secondary to a benign bone tum...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200112000-00032
更新日期：2001-12-01 00:00:00
abstract：:Thirty-five patients with a benign lesion of the femoral neck or trochanter were treated and seen in followup at the authors' institution from 1988 to 1991. Sixteen men and 19 women between the ages of 18 and 54 years (average, 27 years) were seen at an average followup of 3 years 6 months (range, 2-5 years). Eight pa...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199607000-00034
更新日期：1996-07-01 00:00:00
abstract：BACKGROUND:There are few data on the types of procedures orthopaedic oncologists perform in their first years of practice. Because fellowships are graduating fellows each year and the number of tumor patients is limited, defining the practice patterns of early-career orthopaedic oncologists may help diminish early empl...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-014-3934-x
更新日期：2015-02-01 00:00:00
abstract：:Between 1977 and 1982, 19 cases of congenital dislocation of the hip (CDH) were encountered in black infants. Six of these cases were associated with other anomalies (atypical CDH); 13 were typical CDH. The incidence of complete CDH in the white population studied is 1.5/1000; in the black population studied it is 0.4...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1992-10-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-200303000-00016
更新日期：2003-03-01 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.0000087324.60612.93
更新日期：2003-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1007/s11999-012-2516-z
更新日期：2012-12-01 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.0000218727.14097.d5
更新日期：2006-05-01 00:00:00
abstract：:To evaluate the effect of application of pulsed direct current electrical stimulation to callus tissue, a 1-cm bone-lengthening model using an external lengthener was applied to rabbit tibia. Twenty-microampere pulsed direct current was applied 12 hours daily from the day of osteotomy until 40 days after the completio...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1995-03-01 00:00:00
abstract：:The initial care of the patient with blunt polytrauma involves a systematic search for causes of hemodynamic instability. Bleeding most often occurs in the pleural space, peritoneal cavity, and retroperitoneum. Orthopaedic injuries also can contribute to instability after blunt trauma. Blood loss from open fractures m...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/01.blo.0000131245.72370.8c
更新日期：2004-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-011-2073-x
更新日期：2011-12-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,多中心研究
doi：
更新日期：1996-12-01 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：1990-04-01 00:00:00
abstract：:Two current areas of research on hard tissues have focused upon acidic lipids associated with the local mechanism of calcification and the presence of matrix vesicles as the loci for initial mineralization. Data which show that acidic phospholipids are a component of the vesicle membrane provide a common denominator b...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1976-07-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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doi：10.1007/s11999-016-5011-0
更新日期：2017-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999-010-1488-0
更新日期：2011-01-01 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：1995-04-01 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.0000150130.03519.fb
更新日期：2005-02-01 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.0000238824.56024.7a
更新日期：2006-11-01 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
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-199907000-00026
更新日期：1999-07-01 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：1986-10-01 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：1996-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/00003086-200111000-00058
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:Positive-pressure exhaust suits cost more than standard surgical gowns, and recent evidence suggests that they do not decrease infection risk. As a result, some hospitals and surgeons have abandoned positive-pressure exhaust suits in favor of less expensive alternatives. We propose that in addition to their ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999.0000000000000253
更新日期：2018-06-01 00:00:00
