Arthroscopic Management of Dysplastic Hip Deformities: Predictors of Success and Failures With Comparison to an Arthroscopic FAI Cohort
Background: Reports regarding arthroscopy for mild hip dysplasia have conflicting results. Hypothesis: Arthroscopy for borderline/mild hip dysplasia would lead to improved outcomes but be inferior to arthroscopy for femoroacetabular impingement (FAI). Study Design: Cohort study; Level of evidence, 3...
Gespeichert in:
Veröffentlicht in: | The American journal of sports medicine 2016-02, Vol.44 (2), p.447-453 |
---|---|
Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 453 |
---|---|
container_issue | 2 |
container_start_page | 447 |
container_title | The American journal of sports medicine |
container_volume | 44 |
creator | Larson, Christopher M. Ross, James R. Stone, Rebecca M. Samuelson, Kathryn M. Schelling, Emma F. Giveans, M. Russell Bedi, Asheesh |
description | Background:
Reports regarding arthroscopy for mild hip dysplasia have conflicting results.
Hypothesis:
Arthroscopy for borderline/mild hip dysplasia would lead to improved outcomes but be inferior to arthroscopy for femoroacetabular impingement (FAI).
Study Design:
Cohort study; Level of evidence, 3.
Methods:
A total of 88 hips (77 patients, 71% female; mean age, 33.9 years) with dysplastic radiographic findings were retrospectively reviewed at a mean follow-up of 26.0 months after hip arthroscopy. Specific procedures included labral repair (76%), labral debridement (23%), capsular repair/plication (82%), and femoral osteochondroplasty (72%). Radiographic parameters included lateral center-edge angle, neck-shaft angle, Tönnis angle, extrusion index, femoral head lateralization, and break in the Shenton line. Pre- and postoperative function were evaluated prospectively with the modified Harris Hip Score (mHHS), 12-Item Short Form Health Survey, and visual analog scale for pain. The results of the dysplastic cohort were compared with an age-matched cohort of 231 hips without radiographic dysplasia that underwent arthroscopic FAI correction during the study period (mean follow-up, 22.7 months).
Results:
The mean lateral center-edge angle was 20.8° (range, 8.7°-24.5°), and the mean Tönnis angle was 11.0° (range, 0°-22.2°). At the time of final follow-up, the dysplastic cohort demonstrated a mean mHHS of 81.3 with a mean 15.6-point improvement in mHHS, compared with 88.4 and 24.4 points, respectively, in the FAI cohort (P = .00044). The dysplastic cohort had 60.9% good/excellent results and 32.2% failures, compared with 81.2% good/excellent results and 10.5% failures for the FAI cohort (P < .01). Failure was defined as an mHHS ≤70 or eventual pelvic/femoral osteotomy or total hip arthroplasty. Dysplastic hips that underwent capsular plication and labral repair had greater good/excellent results (73%) and mean latest mHHS (85), as well as lower failure rates (18%) compared with the remainder of the dysplastic cohort (P < .05). Grade 4 chondral defects were predictive of lower scores (P = .02). There were no other statistically significant differences for outcomes regarding sex, age, or radiographic parameters (P > .05). There were no iatrogenic subluxations/dislocations.
Conclusion:
Arthroscopic management of mild to moderate acetabular dysplasia had inferior good/excellent results and higher failure rates when compared with an FAI cohort; therefore, isolated ar |
doi_str_mv | 10.1177/0363546515613068 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1765985754</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sage_id>10.1177_0363546515613068</sage_id><sourcerecordid>3961851891</sourcerecordid><originalsourceid>FETCH-LOGICAL-c351t-9bc169c92d36d9544c9e9a0dcb3ba03a89ff7c57e1949258c9357ff244562e0d3</originalsourceid><addsrcrecordid>eNqNkD1PwzAQhi0EoqWwM6FILCwBf-TseKxaoEhFLDBHjmNDqnxhJ0P_PY5aEKqExHTD-9x7ugehS4JvCRHiDjPOIOFAgBOGeXqEpgSAxoxxOEbTMY7HfILOvN9gjIng6SmaUM4pplJOEcxd_-Far9uu1NGzatS7qU3TR62NllvfVcr3IViVXbQ0tnV12ZfGn6MTqypvLvZzht4e7l8Xq3j98vi0mK9jzYD0scw14VJLWjBeSEgSLY1UuNA5yxVmKpXWCg3CEJlICqmWDIS1NEmAU4MLNkM3u97OtZ-D8X1Wl16bqlKNaQefhXdApiAg-Q9KWegVJKDXB-imHVwTHhkpwWWaUB4ovKN00OOdsVnnylq5bUZwNtrPDu2Hlat98ZDXpvhZ-NYdgHgH-KD519W_Cr8ACIqJfQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1767698426</pqid></control><display><type>article</type><title>Arthroscopic Management of Dysplastic Hip Deformities: Predictors of Success and Failures With Comparison to an Arthroscopic FAI Cohort</title><source>Access via SAGE</source><source>MEDLINE</source><source>Alma/SFX Local Collection</source><creator>Larson, Christopher M. ; Ross, James R. ; Stone, Rebecca M. ; Samuelson, Kathryn M. ; Schelling, Emma F. ; Giveans, M. Russell ; Bedi, Asheesh</creator><creatorcontrib>Larson, Christopher M. ; Ross, James R. ; Stone, Rebecca M. ; Samuelson, Kathryn M. ; Schelling, Emma F. ; Giveans, M. Russell ; Bedi, Asheesh</creatorcontrib><description>Background:
Reports regarding arthroscopy for mild hip dysplasia have conflicting results.
Hypothesis:
Arthroscopy for borderline/mild hip dysplasia would lead to improved outcomes but be inferior to arthroscopy for femoroacetabular impingement (FAI).
Study Design:
Cohort study; Level of evidence, 3.
Methods:
A total of 88 hips (77 patients, 71% female; mean age, 33.9 years) with dysplastic radiographic findings were retrospectively reviewed at a mean follow-up of 26.0 months after hip arthroscopy. Specific procedures included labral repair (76%), labral debridement (23%), capsular repair/plication (82%), and femoral osteochondroplasty (72%). Radiographic parameters included lateral center-edge angle, neck-shaft angle, Tönnis angle, extrusion index, femoral head lateralization, and break in the Shenton line. Pre- and postoperative function were evaluated prospectively with the modified Harris Hip Score (mHHS), 12-Item Short Form Health Survey, and visual analog scale for pain. The results of the dysplastic cohort were compared with an age-matched cohort of 231 hips without radiographic dysplasia that underwent arthroscopic FAI correction during the study period (mean follow-up, 22.7 months).
Results:
The mean lateral center-edge angle was 20.8° (range, 8.7°-24.5°), and the mean Tönnis angle was 11.0° (range, 0°-22.2°). At the time of final follow-up, the dysplastic cohort demonstrated a mean mHHS of 81.3 with a mean 15.6-point improvement in mHHS, compared with 88.4 and 24.4 points, respectively, in the FAI cohort (P = .00044). The dysplastic cohort had 60.9% good/excellent results and 32.2% failures, compared with 81.2% good/excellent results and 10.5% failures for the FAI cohort (P < .01). Failure was defined as an mHHS ≤70 or eventual pelvic/femoral osteotomy or total hip arthroplasty. Dysplastic hips that underwent capsular plication and labral repair had greater good/excellent results (73%) and mean latest mHHS (85), as well as lower failure rates (18%) compared with the remainder of the dysplastic cohort (P < .05). Grade 4 chondral defects were predictive of lower scores (P = .02). There were no other statistically significant differences for outcomes regarding sex, age, or radiographic parameters (P > .05). There were no iatrogenic subluxations/dislocations.
Conclusion:
Arthroscopic management of mild to moderate acetabular dysplasia had inferior good/excellent results and higher failure rates when compared with an FAI cohort; therefore, isolated arthroscopic procedures in this population should be cautiously considered. These results were independent of patient sex. Labral repair and capsular plication resulted in better clinical outcomes in this mildly dysplastic cohort.</description><identifier>ISSN: 0363-5465</identifier><identifier>EISSN: 1552-3365</identifier><identifier>DOI: 10.1177/0363546515613068</identifier><identifier>PMID: 26620299</identifier><identifier>CODEN: AJSMDO</identifier><language>eng</language><publisher>Los Angeles, CA: SAGE Publications</publisher><subject>Adolescent ; Adult ; Arthroplasty, Replacement, Hip - methods ; Arthroscopy ; Arthroscopy - methods ; Case-Control Studies ; Debridement - methods ; Deformities ; Female ; Femoracetabular Impingement - physiopathology ; Femoracetabular Impingement - surgery ; Femur Head - physiopathology ; Femur Head - surgery ; Hip Dislocation - surgery ; Hip Dislocation, Congenital - physiopathology ; Hip Dislocation, Congenital - surgery ; Hip joint ; Hip Joint - surgery ; Humans ; Male ; Middle Aged ; Osteotomy - methods ; Pain Measurement ; Radiography ; Retrospective Studies ; Surgical outcomes ; Treatment Outcome ; Visual Analog Scale</subject><ispartof>The American journal of sports medicine, 2016-02, Vol.44 (2), p.447-453</ispartof><rights>2015 The Author(s)</rights><rights>2015 The Author(s).</rights><rights>Copyright Sage Publications Ltd. Feb 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c351t-9bc169c92d36d9544c9e9a0dcb3ba03a89ff7c57e1949258c9357ff244562e0d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0363546515613068$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0363546515613068$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21819,27924,27925,43621,43622</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26620299$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Larson, Christopher M.</creatorcontrib><creatorcontrib>Ross, James R.</creatorcontrib><creatorcontrib>Stone, Rebecca M.</creatorcontrib><creatorcontrib>Samuelson, Kathryn M.</creatorcontrib><creatorcontrib>Schelling, Emma F.</creatorcontrib><creatorcontrib>Giveans, M. Russell</creatorcontrib><creatorcontrib>Bedi, Asheesh</creatorcontrib><title>Arthroscopic Management of Dysplastic Hip Deformities: Predictors of Success and Failures With Comparison to an Arthroscopic FAI Cohort</title><title>The American journal of sports medicine</title><addtitle>Am J Sports Med</addtitle><description>Background:
Reports regarding arthroscopy for mild hip dysplasia have conflicting results.
Hypothesis:
Arthroscopy for borderline/mild hip dysplasia would lead to improved outcomes but be inferior to arthroscopy for femoroacetabular impingement (FAI).
Study Design:
Cohort study; Level of evidence, 3.
Methods:
A total of 88 hips (77 patients, 71% female; mean age, 33.9 years) with dysplastic radiographic findings were retrospectively reviewed at a mean follow-up of 26.0 months after hip arthroscopy. Specific procedures included labral repair (76%), labral debridement (23%), capsular repair/plication (82%), and femoral osteochondroplasty (72%). Radiographic parameters included lateral center-edge angle, neck-shaft angle, Tönnis angle, extrusion index, femoral head lateralization, and break in the Shenton line. Pre- and postoperative function were evaluated prospectively with the modified Harris Hip Score (mHHS), 12-Item Short Form Health Survey, and visual analog scale for pain. The results of the dysplastic cohort were compared with an age-matched cohort of 231 hips without radiographic dysplasia that underwent arthroscopic FAI correction during the study period (mean follow-up, 22.7 months).
Results:
The mean lateral center-edge angle was 20.8° (range, 8.7°-24.5°), and the mean Tönnis angle was 11.0° (range, 0°-22.2°). At the time of final follow-up, the dysplastic cohort demonstrated a mean mHHS of 81.3 with a mean 15.6-point improvement in mHHS, compared with 88.4 and 24.4 points, respectively, in the FAI cohort (P = .00044). The dysplastic cohort had 60.9% good/excellent results and 32.2% failures, compared with 81.2% good/excellent results and 10.5% failures for the FAI cohort (P < .01). Failure was defined as an mHHS ≤70 or eventual pelvic/femoral osteotomy or total hip arthroplasty. Dysplastic hips that underwent capsular plication and labral repair had greater good/excellent results (73%) and mean latest mHHS (85), as well as lower failure rates (18%) compared with the remainder of the dysplastic cohort (P < .05). Grade 4 chondral defects were predictive of lower scores (P = .02). There were no other statistically significant differences for outcomes regarding sex, age, or radiographic parameters (P > .05). There were no iatrogenic subluxations/dislocations.
Conclusion:
Arthroscopic management of mild to moderate acetabular dysplasia had inferior good/excellent results and higher failure rates when compared with an FAI cohort; therefore, isolated arthroscopic procedures in this population should be cautiously considered. These results were independent of patient sex. Labral repair and capsular plication resulted in better clinical outcomes in this mildly dysplastic cohort.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Arthroplasty, Replacement, Hip - methods</subject><subject>Arthroscopy</subject><subject>Arthroscopy - methods</subject><subject>Case-Control Studies</subject><subject>Debridement - methods</subject><subject>Deformities</subject><subject>Female</subject><subject>Femoracetabular Impingement - physiopathology</subject><subject>Femoracetabular Impingement - surgery</subject><subject>Femur Head - physiopathology</subject><subject>Femur Head - surgery</subject><subject>Hip Dislocation - surgery</subject><subject>Hip Dislocation, Congenital - physiopathology</subject><subject>Hip Dislocation, Congenital - surgery</subject><subject>Hip joint</subject><subject>Hip Joint - surgery</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Osteotomy - methods</subject><subject>Pain Measurement</subject><subject>Radiography</subject><subject>Retrospective Studies</subject><subject>Surgical outcomes</subject><subject>Treatment Outcome</subject><subject>Visual Analog Scale</subject><issn>0363-5465</issn><issn>1552-3365</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkD1PwzAQhi0EoqWwM6FILCwBf-TseKxaoEhFLDBHjmNDqnxhJ0P_PY5aEKqExHTD-9x7ugehS4JvCRHiDjPOIOFAgBOGeXqEpgSAxoxxOEbTMY7HfILOvN9gjIng6SmaUM4pplJOEcxd_-Far9uu1NGzatS7qU3TR62NllvfVcr3IViVXbQ0tnV12ZfGn6MTqypvLvZzht4e7l8Xq3j98vi0mK9jzYD0scw14VJLWjBeSEgSLY1UuNA5yxVmKpXWCg3CEJlICqmWDIS1NEmAU4MLNkM3u97OtZ-D8X1Wl16bqlKNaQefhXdApiAg-Q9KWegVJKDXB-imHVwTHhkpwWWaUB4ovKN00OOdsVnnylq5bUZwNtrPDu2Hlat98ZDXpvhZ-NYdgHgH-KD519W_Cr8ACIqJfQ</recordid><startdate>201602</startdate><enddate>201602</enddate><creator>Larson, Christopher M.</creator><creator>Ross, James R.</creator><creator>Stone, Rebecca M.</creator><creator>Samuelson, Kathryn M.</creator><creator>Schelling, Emma F.</creator><creator>Giveans, M. Russell</creator><creator>Bedi, Asheesh</creator><general>SAGE Publications</general><general>Sage Publications Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TS</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>U9A</scope><scope>7X8</scope></search><sort><creationdate>201602</creationdate><title>Arthroscopic Management of Dysplastic Hip Deformities</title><author>Larson, Christopher M. ; Ross, James R. ; Stone, Rebecca M. ; Samuelson, Kathryn M. ; Schelling, Emma F. ; Giveans, M. Russell ; Bedi, Asheesh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c351t-9bc169c92d36d9544c9e9a0dcb3ba03a89ff7c57e1949258c9357ff244562e0d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Arthroplasty, Replacement, Hip - methods</topic><topic>Arthroscopy</topic><topic>Arthroscopy - methods</topic><topic>Case-Control Studies</topic><topic>Debridement - methods</topic><topic>Deformities</topic><topic>Female</topic><topic>Femoracetabular Impingement - physiopathology</topic><topic>Femoracetabular Impingement - surgery</topic><topic>Femur Head - physiopathology</topic><topic>Femur Head - surgery</topic><topic>Hip Dislocation - surgery</topic><topic>Hip Dislocation, Congenital - physiopathology</topic><topic>Hip Dislocation, Congenital - surgery</topic><topic>Hip joint</topic><topic>Hip Joint - surgery</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Osteotomy - methods</topic><topic>Pain Measurement</topic><topic>Radiography</topic><topic>Retrospective Studies</topic><topic>Surgical outcomes</topic><topic>Treatment Outcome</topic><topic>Visual Analog Scale</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Larson, Christopher M.</creatorcontrib><creatorcontrib>Ross, James R.</creatorcontrib><creatorcontrib>Stone, Rebecca M.</creatorcontrib><creatorcontrib>Samuelson, Kathryn M.</creatorcontrib><creatorcontrib>Schelling, Emma F.</creatorcontrib><creatorcontrib>Giveans, M. Russell</creatorcontrib><creatorcontrib>Bedi, Asheesh</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>The American journal of sports medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Larson, Christopher M.</au><au>Ross, James R.</au><au>Stone, Rebecca M.</au><au>Samuelson, Kathryn M.</au><au>Schelling, Emma F.</au><au>Giveans, M. Russell</au><au>Bedi, Asheesh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Arthroscopic Management of Dysplastic Hip Deformities: Predictors of Success and Failures With Comparison to an Arthroscopic FAI Cohort</atitle><jtitle>The American journal of sports medicine</jtitle><addtitle>Am J Sports Med</addtitle><date>2016-02</date><risdate>2016</risdate><volume>44</volume><issue>2</issue><spage>447</spage><epage>453</epage><pages>447-453</pages><issn>0363-5465</issn><eissn>1552-3365</eissn><coden>AJSMDO</coden><abstract>Background:
Reports regarding arthroscopy for mild hip dysplasia have conflicting results.
Hypothesis:
Arthroscopy for borderline/mild hip dysplasia would lead to improved outcomes but be inferior to arthroscopy for femoroacetabular impingement (FAI).
Study Design:
Cohort study; Level of evidence, 3.
Methods:
A total of 88 hips (77 patients, 71% female; mean age, 33.9 years) with dysplastic radiographic findings were retrospectively reviewed at a mean follow-up of 26.0 months after hip arthroscopy. Specific procedures included labral repair (76%), labral debridement (23%), capsular repair/plication (82%), and femoral osteochondroplasty (72%). Radiographic parameters included lateral center-edge angle, neck-shaft angle, Tönnis angle, extrusion index, femoral head lateralization, and break in the Shenton line. Pre- and postoperative function were evaluated prospectively with the modified Harris Hip Score (mHHS), 12-Item Short Form Health Survey, and visual analog scale for pain. The results of the dysplastic cohort were compared with an age-matched cohort of 231 hips without radiographic dysplasia that underwent arthroscopic FAI correction during the study period (mean follow-up, 22.7 months).
Results:
The mean lateral center-edge angle was 20.8° (range, 8.7°-24.5°), and the mean Tönnis angle was 11.0° (range, 0°-22.2°). At the time of final follow-up, the dysplastic cohort demonstrated a mean mHHS of 81.3 with a mean 15.6-point improvement in mHHS, compared with 88.4 and 24.4 points, respectively, in the FAI cohort (P = .00044). The dysplastic cohort had 60.9% good/excellent results and 32.2% failures, compared with 81.2% good/excellent results and 10.5% failures for the FAI cohort (P < .01). Failure was defined as an mHHS ≤70 or eventual pelvic/femoral osteotomy or total hip arthroplasty. Dysplastic hips that underwent capsular plication and labral repair had greater good/excellent results (73%) and mean latest mHHS (85), as well as lower failure rates (18%) compared with the remainder of the dysplastic cohort (P < .05). Grade 4 chondral defects were predictive of lower scores (P = .02). There were no other statistically significant differences for outcomes regarding sex, age, or radiographic parameters (P > .05). There were no iatrogenic subluxations/dislocations.
Conclusion:
Arthroscopic management of mild to moderate acetabular dysplasia had inferior good/excellent results and higher failure rates when compared with an FAI cohort; therefore, isolated arthroscopic procedures in this population should be cautiously considered. These results were independent of patient sex. Labral repair and capsular plication resulted in better clinical outcomes in this mildly dysplastic cohort.</abstract><cop>Los Angeles, CA</cop><pub>SAGE Publications</pub><pmid>26620299</pmid><doi>10.1177/0363546515613068</doi><tpages>7</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0363-5465 |
ispartof | The American journal of sports medicine, 2016-02, Vol.44 (2), p.447-453 |
issn | 0363-5465 1552-3365 |
language | eng |
recordid | cdi_proquest_miscellaneous_1765985754 |
source | Access via SAGE; MEDLINE; Alma/SFX Local Collection |
subjects | Adolescent Adult Arthroplasty, Replacement, Hip - methods Arthroscopy Arthroscopy - methods Case-Control Studies Debridement - methods Deformities Female Femoracetabular Impingement - physiopathology Femoracetabular Impingement - surgery Femur Head - physiopathology Femur Head - surgery Hip Dislocation - surgery Hip Dislocation, Congenital - physiopathology Hip Dislocation, Congenital - surgery Hip joint Hip Joint - surgery Humans Male Middle Aged Osteotomy - methods Pain Measurement Radiography Retrospective Studies Surgical outcomes Treatment Outcome Visual Analog Scale |
title | Arthroscopic Management of Dysplastic Hip Deformities: Predictors of Success and Failures With Comparison to an Arthroscopic FAI Cohort |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-04T03%3A52%3A37IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Arthroscopic%20Management%20of%20Dysplastic%20Hip%20Deformities:%20Predictors%20of%20Success%20and%20Failures%20With%20Comparison%20to%20an%20Arthroscopic%20FAI%20Cohort&rft.jtitle=The%20American%20journal%20of%20sports%20medicine&rft.au=Larson,%20Christopher%20M.&rft.date=2016-02&rft.volume=44&rft.issue=2&rft.spage=447&rft.epage=453&rft.pages=447-453&rft.issn=0363-5465&rft.eissn=1552-3365&rft.coden=AJSMDO&rft_id=info:doi/10.1177/0363546515613068&rft_dat=%3Cproquest_cross%3E3961851891%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1767698426&rft_id=info:pmid/26620299&rft_sage_id=10.1177_0363546515613068&rfr_iscdi=true |