Abstract：
BACKGROUND:An assortment of variables has been used in predicting anterior shoulder instability resulting from pathologic engagement of Hill-Sachs lesions on the glenoid. The glenoid track is a unique biomechanical model that relates both Hill-Sachs and bony Bankart lesions to predict shoulder engagement. We examined the glenoid track concept to determine if it provides a model that unifies glenoid rim and humeral head bone loss in predicting engagement. QUESTIONS/PURPOSES:In this review we addressed two questions: (1) How are humeral head and glenoid rim bony defects and their interactions quantified? (2) Why is the concept of the glenoid track important? METHODS:We performed a systematic review of the literature using PubMed (MEDLINE) and OVID for biomechanical studies and peer-reviewed articles published until March 2013. Twenty-four studies fit the inclusion criteria. These were subdivided into four anatomic studies, four studies quantifying glenohumeral bone loss, nine studies biomechanically defining shoulder engagement, six studies analyzing current treatment models, and one clinical study to be included in the final review. RESULTS:Data demonstrate pathologic engagement is dependent on the medial margin of the Hill-Sachs lesion traveling outside the glenoid track. The width of the glenoid track decreases accordingly if there is a glenoid defect, making engagement more likely. Most treatment models focus on widening the glenoid track before addressing Hill-Sachs lesions. CONCLUSIONS:The glenoid track uses both glenoid and humeral head bone loss to predict subsequent risk of humeral head engagement and possible dislocation. The glenoid track shows us that restoring the track to its natural width should be among the surgeon's first priority in restoring shoulder stability. Humeral head lesions, also known as Hill-Sachs lesions, are surgically addressed when they cause clinical symptoms. Symptoms arise when the medial margin of the defect engages the glenoid track.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Trivedi S,Pomerantz ML,Gross D,Golijanan P,Provencher MTdoi
10.1007/s11999-014-3589-7subject
Has Abstractpub_date
2014-08-01 00:00:00pages
2352-62issue
8eissn
0009-921Xissn
1528-1132journal_volume
472pub_type
杂志文章,评审abstract：:A series of 205 pediatric patients affected by osteosarcoma, Ewing's sarcoma, fibrosarcoma, and malignant fibrous histiocytoma of bone were treated from 1978 to 1988. Ninety-eight percent of the patients received chemotherapy and 63% had a surgical resection. Sixty-five percent of all patients were alive at 30 months ...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1991-03-01 00:00:00
abstract：:The clinical biocompatibility and degradation behavior of absorbable fracture fixation devices are still incompletely known in humans. Fifty-one patients with displaced fracture of the ankle treated by open reduction and internal fixation with absorbable screws made of polylevolactide were seen in followup for at leas...
journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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更新日期：1994-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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更新日期：1981-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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更新日期：1995-10-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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更新日期：2002-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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doi：10.1097/00003086-197509000-00006
更新日期：1975-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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doi：
更新日期：1990-08-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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