PMID- 25201441
OWN - NLM
STAT- MEDLINE
DCOM- 20141211
LR  - 20181202
IS  - 1552-3365 (Electronic)
IS  - 0363-5465 (Linking)
VI  - 42
IP  - 10
DP  - 2014 Oct
TI  - The effect of supraspinatus tears on glenohumeral translations in passive 
      pitching motion.
PG  - 2455-62
LID - 10.1177/0363546514547348 [doi]
AB  - BACKGROUND: Supraspinatus tears are common in pitchers. However, the effect of 
      these tears on glenohumeral (GH) mechanics is incompletely understood. 
      PURPOSE/HYPOTHESIS: To describe the effect of supraspinatus tears and repairs on 
      GH kinematics during an abbreviated throwing motion using the intact shoulder 
      girdle. The hypothesis was that supraspinatus tears would lead to an increase of 
      GH translation in the coronal plane and supraspinatus repairs would restore GH 
      kinematics. STUDY DESIGN: Controlled laboratory study. METHODS: Six shoulders 
      from 3 fresh-frozen cadavers were tested in a novel 7 degrees of freedom robotic 
      testing system. Torsos were mounted and the wrist was pinned to an actuator 
      mounted on an upper frame. After the deltoid was removed, the shoulders were 
      studied during an abbreviated throwing motion (ATM) from maximum external 
      rotation to the midcoronal plane to establish a baseline. The ATM was repeated 
      after creation of a 1-cm supraspinatus tear, after creation of a 3-cm 
      supraspinatus tear, and after repair with a transosseous equivalent (TOE) 
      technique. Retroreflective bone markers and high-speed infrared cameras were used 
      to measure GH kinematics and calculate the center of rotation of the GH joint 
      (CORGH) instantaneously. RESULTS: The 1- and 3-cm supraspinatus tears did not 
      significantly alter GH translation. The TOE repair shifted the CORGH posteriorly, 
      as evidenced by a significant decrease in the overall GH translation in all 3 
      planes (P = .003, .019, and .026, for x-y, y-z, and x-z planes, respectively). 
      CONCLUSION: In contrast to a TOE repair of the supraspinatus tendon, isolated 
      supraspinatus tears did not perturb GH kinematics in this cadaveric model of the 
      throwing shoulder. CLINICAL RELEVANCE: In throwing athletes, treatment of rotator 
      cuff tears should be addressed with caution to avoid an unintended alteration in 
      GH kinematics due to overtightening of the tendon.
CI  - (c) 2014 The Author(s).
FAU - Mueller, Andreas M
AU  - Mueller AM
AD  - Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and 
      Harvard Medical School, Boston, Massachusetts, USA Orthopaedic Department, 
      University Hospital Basel, Basel, Switzerland.
FAU - Rosso, Claudio
AU  - Rosso C
AD  - Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and 
      Harvard Medical School, Boston, Massachusetts, USA Orthopaedic Department, 
      University Hospital Basel, Basel, Switzerland.
FAU - Entezari, Vahid
AU  - Entezari V
AD  - Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and 
      Harvard Medical School, Boston, Massachusetts, USA.
FAU - McKenzie, Brett
AU  - McKenzie B
AD  - Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and 
      Harvard Medical School, Boston, Massachusetts, USA.
FAU - Hasebroock, Andrew
AU  - Hasebroock A
AD  - Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and 
      Harvard Medical School, Boston, Massachusetts, USA.
FAU - Cereatti, Andrea
AU  - Cereatti A
FAU - Della Croce, Ugo
AU  - Della Croce U
AD  - Information Engineering Unit, POLCOMING Department, University of Sassari, 
      Sassari, Italy.
FAU - Nazarian, Ara
AU  - Nazarian A
AD  - Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and 
      Harvard Medical School, Boston, Massachusetts, USA anazaria@bidmc.harvard.edu.
FAU - Ramappa, Arun J
AU  - Ramappa AJ
AD  - Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard 
      Medical School, Boston, Massachusetts, USA.
FAU - DeAngelis, Joseph P
AU  - DeAngelis JP
AD  - Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard 
      Medical School, Boston, Massachusetts, USA.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140908
PL  - United States
TA  - Am J Sports Med
JT  - The American journal of sports medicine
JID - 7609541
SB  - IM
EIN - Am J Sports Med. 2014 Nov;42(11):NP53. Cereatti, Andrea [added]
EIN - Am J Sports Med. 2014 Nov;42(11):NP53. PMID: 28080130
MH  - Biomechanical Phenomena
MH  - Cadaver
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Movement/*physiology
MH  - Range of Motion, Articular/physiology
MH  - Robotics
MH  - Rotator Cuff/*surgery
MH  - *Rotator Cuff Injuries
MH  - Shoulder Joint/*physiology
MH  - Suture Anchors
MH  - Suture Techniques
OTO - NOTNLM
OT  - glenohumeral joint
OT  - pitching
OT  - shoulder biomechanics
OT  - supraspinatus tear
OT  - translation
EDAT- 2014/09/10 06:00
MHDA- 2014/12/17 06:00
CRDT- 2014/09/10 06:00
PHST- 2014/09/10 06:00 [entrez]
PHST- 2014/09/10 06:00 [pubmed]
PHST- 2014/12/17 06:00 [medline]
AID - 0363546514547348 [pii]
AID - 10.1177/0363546514547348 [doi]
PST - ppublish
SO  - Am J Sports Med. 2014 Oct;42(10):2455-62. doi: 10.1177/0363546514547348. Epub 
      2014 Sep 8.