Biomechanical Analysis of Fixation Devices for Basicervical Femoral Neck Fractures

By |2020-07-31T12:24:09+00:00January 1st, 2019|

Biomechanical Analysis of Fixation Devices for Basicervical Femoral Neck Fractures Publication: Journal of the American Academy of Orthopaedic Surgeons Date: January 2019 Authors: Johnson J, Deren M, Chambers A, Cassidy D, Koruprolu S, Born C. Abstract INTRODUCTION: Basicervical femoral neck fractures are challenging fractures in geriatric populations. The goal of this study was to [...]

Biomechanical Assessment of Locking Plate Fixation of Comminuted Proximal Olecranon Fractures

By |2020-07-31T12:24:23+00:00November 1st, 2018|

Biomechanical Assessment of Locking Plate Fixation of Comminuted Proximal Olecranon Fractures Publication: Journal of Orthopaedic Trauma Date: November 2018 Authors: Fantry A, Sobel A, Capito N, Hodax JD, Pidgeon T, Koruprolu S, Rich R, Fava JL, Green A, Paxton S Abstract OBJECTIVES: To determine if mean ultimate strength or failure mechanism differed between comminuted [...]

Biomechanical Properties of the Lateral Patellofemoral Ligament: A Cadaveric Analysis

By |2020-07-31T12:44:06+00:00November 1st, 2018|

Biomechanical Properties of the Lateral Patellofemoral Ligament: A Cadaveric Analysis Publication: Orthopedics Date: November 2018 Authors: DeFroda SF, Shah KN, Lemme N, Koruprolu S, Ware KJ, Owens BD. Abstract Medial instability of the patellofemoral joint is a rare but known phenomenon; it may result from an incompetent lateral patellofemoral ligament (LPFL). However, biomechanical details [...]

Biomechanical comparison between titanium and cobalt chromium rods used in a pedicle subtraction osteotomy model

By |2020-07-31T12:27:45+00:00March 1st, 2018|

Biomechanical Comparison Between Titanium and Cobalt Chromium Rods Used in a Pedicle Subtraction Osteotomy Model Publication: Orthopedic Reviews Date: March 2018 Authors: Shah KN, Walker G, Koruprolu SC, Daniels AH Abstract Instrumentation failure is a common complication following complex spinal reconstruction and deformity correction. Rod fracture is the most frequent mode of hardware failure and [...]

Lateral Patellofemoral Ligament: An Anatomic Study

By |2020-07-31T12:41:50+00:00December 1st, 2017|

Lateral Patellofemoral Ligament: An Anatomic Study Publication: Orthopaedic Journal of Sports Medicine Date: December 2017 Authors: Shah KN, DeFroda SF, Ware JK, Koruprolu SC, Owens BD Abstract BACKGROUND: Medial instability of the patellofemoral joint is a rare but known phenomenon that may result from an incompetent lateral patellofemoral ligament (LPFL). Surgical reconstruction of the LPFL [...]

Biomechanical Analysis of Pedicle Screw Fixation for Thoracolumbar Burst Fractures

By |2020-07-27T15:51:05+00:00May 1st, 2016|

Publication: Orthopedics Date: May 2016 Authors: McDonnell M, Shah KN, Paller DJ, Thakur NA, Koruprolu S, Palumbo MA, Daniels AH Link to Full Text Abstract Treatment of unstable thoracolumbar burst fractures remains controversial. Long-segment pedicle screw constructs may be stiffer and impart greater forces on adjacent segments compared with short-segment constructs, which may affect clinical performance [...]

Biomechanical and Computed Tomography Analysis of Adjustable Femoral Cortical Fixation Devices for Anterior Cruciate Ligament Reconstruction in a Cadaveric Human Knee Model

By |2020-07-27T15:49:40+00:00February 1st, 2016|

Publication: Arthroscopy: The Journal of Arthroscopic and Related Surgery Date: February 2016 Authors: Born TR, Biercevicz AM, Koruprolu SC, Paller D, Spenciner D, Fadale PD Link to Full Text Abstract PURPOSE: To evaluate and compare two adjustable femoral cortical suspensory fixation devices used for anterior cruciate ligament reconstruction through a novel, direct computed tomography (CT) [...]

T2* relaxometry and volume predict semi-quantitative histological scoring of an ACL bridge-enhanced primary repair in a porcine model

By |2020-07-27T16:09:05+00:00August 1st, 2015|

Publication: Journal of Orthopaedic Research Date: August 2015 Authors: Biercevicz AM, Proffen BL, Murray MM, Walsh EG, Fleming BC Link to Full Text Abstract Magnetic resonance imaging (MRI) variables, such as T2* and volume, can predict the healing ligament structural properties. How these MR variables relate to semi-quantitative histology of the healing ACL is yet [...]

The effects of distal interlocking screws on torsional stability in three-part intertrochanteric hip fractures

By |2020-07-27T15:46:00+00:00August 1st, 2015|

Publication: SpringerPlus Date: August 2015 Authors: Vopat BG, Kane PM, Mansuripur PK, Paller D, Koruprolu S, Abbood E, Born CT Link to Full Text Abstract OBJECTIVE: Many surgeons currently use long cephomedullary nails for the treatment of intertrochanteric fractures. The optimal indications for deploying distal interlocks are still debatable. This study examined the torsional biomechanical [...]

Isolating Suture Slippage During Cadaveric Testing of Knotless Anchors

By |2020-07-27T15:38:03+00:00July 1st, 2015|

Publication: American Journal of Orthopedics Date: July 2015 Authors: Klinge SA, Vopat BG, Paller D, Avery AL, Koruprolu S, Fadale PD Link to Full Text Abstract We evaluated a testing method designed to isolate and analyze the effectiveness of different suture-retention mechanisms in knotless suture anchors used for rotator cuff repairs. Six knotless PushLock implants [...]

Long head biceps tenodesis with a knotless cinch suture anchor: a biomechanical analysis

By |2020-07-27T15:36:40+00:00May 1st, 2015|

Publication: Arthroscopy: The Journal of Arthroscopic and Related Surgery Date: May 2015 Authors: Kaback LA, Gowda AL, Paller D, Green A, Blaine T Link to Full Text Abstract PURPOSE: The purpose of this study was to evaluate the initial fixation strength of 3 techniques of arthroscopic tenodesis of the long head of the biceps (LHB). [...]

The uncertainty of predicting intact anterior cruciate ligament degeneration in terms of structural properties using T(2)(*) relaxometry in a human cadaveric model

By |2020-07-27T15:32:03+00:00April 1st, 2015|

Publication: Journal of Biomechanics Date: April 2015 Authors: Biercevicz AM, Akelman MR, Rubin LE, Walsh EG, Merck D, Fleming BC Link to Full Text Abstract The combination of healing anterior cruciate ligament (ACL) volume and the distributions of T2(*) relaxation times within it have been shown to predict the biomechanical failure properties in a porcine [...]

MRI volume and signal intensity of ACL graft predict clinical, functional, and patient-oriented outcome measures after ACL reconstruction

By |2020-07-27T15:28:34+00:00March 1st, 2015|

Publication: The American journal of sports medicine Date: March 2015 Authors: Biercevicz AM, Akelman MR, Fadale PD, Hulstyn MJ, Shalvoy RM, Badger GJ, Tung GA, Oksendahl HL, Fleming BC Link to Full Text Abstract BACKGROUND: Clinical, functional, and patient-oriented outcomes are commonly used to evaluate the efficacy of treatments after anterior cruciate ligament (ACL) injury; [...]

Contribution of the medial malleolus to tibiotalar joint contact characteristics

By |2020-07-27T16:51:11+00:00February 1st, 2015|

Publication: Foot & Ankle Specialist Date: February 2015 Authors: Lareau CR1, Bariteau JT2, Paller DJ2, Koruprolu SC2, DiGiovanni CW2 Link to Full Text Abstract BACKGROUND: Isolated medial malleolus fractures are typically treated operatively to minimize the potential for articular incongruity, instability, nonunion, and posttraumatic arthritis. The literature, however, has not clearly demonstrated inferior outcomes with [...]

Cervical total disc replacement exhibits similar stiffness to intact cervical functional spinal units tested on a dynamic pendulum testing system

By |2020-07-27T15:20:00+00:00January 1st, 2015|

Publication: Spine Journal Date: January 2015 Authors: Esmende SM, Daniels AH, Paller DJ, Koruprolu S, Palumbo MA, Crisco JJ Link to Full Text Abstract BACKGROUND CONTEXT: The pendulum testing system is capable of applying physiologic compressive loads without constraining the motion of functional spinal units (FSUs). The number of cycles to equilibrium observed under pendulum [...]

Is distal locking of long nails for intertrochanteric fractures necessary? A clinical study

By |2020-07-27T14:21:37+00:00December 1st, 2014|

Publication: Journal of Clinical Orthopaedics and Trauma Date: December 2014 Authors: Vopat BG, Kane PM, Truntzer J, McClure P, Paller D, Abbood E, Born C Link to Full Text Abstract BACKGROUND: Few clinical studies have examined the utility of distal interlocking nails when fixing intertrochanteric fractures with intramedullary devices. In this study we performed a [...]

A biomechanical comparison of locked and unlocked long cephalomedullary nails in a stable intertrochanteric fracture model

By |2020-07-27T14:28:12+00:00December 1st, 2014|

Publication: Journal of orthopaedic trauma Date: December 2014 Authors: Kane P, Vopat B, Paller D, Koruprolu S, Daniels AH, Born C Link to Full Text Abstract OBJECTIVES: This study compared the torsional properties of stable intertrochanteric femur fractures in a cadaveric bone model using 2 different distal fixation strategies: unlocked long cephalomedullary nailing versus dynamically [...]

Redefining the Economics of Geriatric Orthopedics

By |2020-07-27T14:29:20+00:00December 1st, 2014|

Publication: Geriatric Orthopaedic Surgery & Rehabilitation Date: December 2014 Authors: Truntzer J, Nacca C, Paller D, Daniels AH Link to Full Text Abstract INTRODUCTION: The heath care system in the United States is in the midst of a transition, in large part to help accommodate an older and more medically complex population. Central to the [...]

Is distal locking of long nails for intertrochanteric fractures necessary? A clinical study

By |2020-07-27T14:26:43+00:00December 1st, 2014|

Authors: Bryan G. Vopat, MD,∗ Patrick M. Kane, MD, Jeremy Truntzer, MD, Philip McClure, MD, David Paller, MS, Emily Abbood, BS, and Christopher Born, MD Published: December 2014 Link to full text: Background Few clinical studies have examined the utility of distal interlocking nails when fixing intertrochanteric fractures with intramedullary devices. In this study we performed [...]

Surrogate headform accelerations associated with stick checks in girls’ lacrosse

By |2020-07-27T15:34:41+00:00November 1st, 2014|

Publication: Journal of Applied Biomechanics Date: November 2014 Authors: Crisco JJ, Costa L, Rich R, Schwartz JB, Wilcox B Link to Full Text Abstract Girls' lacrosse is fundamentally a different sport than boys' lacrosse, and girls are not required to wear protective headgear. Recent epidemiological studies have found that stick checks are the leading cause [...]

Biomechanical evaluation of the suture anchors used in open-door laminoplasty: a cadaveric study

By |2020-07-27T14:17:55+00:00October 1st, 2014|

Publication: Spine Date: October 2014 Authors: Kurokawa Y, Yokoyama Y, Kuroda K, Koruprolu S, Paller D, Nakano A, Baba I, Neo M Link to Full Text Abstract STUDY DESIGN: A cadaveric study. OBJECTIVE: To determine whether the use of suture anchors is warranted in cervical laminoplasty. SUMMARY OF BACKGROUND DATA: The use of suture anchors to [...]

Is tip apex distance as important as we think? A biomechanical study examining optimal lag screw placement

By |2020-07-27T13:37:10+00:00August 1st, 2014|

Publication: Clinical Orthopaedics and Related Research Date: August 2014 Authors: Kane P, Vopat B, Heard W, Thakur N, Paller D, Koruprolu S, Born C. Link to Full Text Abstract BACKGROUND: Intertrochanteric hip fractures pose a significant challenge for the orthopaedic community as optimal surgical treatment continues to be debated. Currently, varus collapse with lag screw cutout is [...]

Biomechanical Comparison of an Open vs Arthroscopic Approach for Lateral Ankle Instability

By |2020-07-27T16:49:17+00:00August 1st, 2014|

Publication: Foot & Ankle International Date: August 2014 Authors: Drakos MC, Behrens SB, Paller D, Murphy C, DiGiovanni CW Link to Full Text Abstract BACKGROUND: The current clinical standard for the surgical treatment of ankle instability remains the open modified Broström procedure. Modern advents in arthroscopic technology have allowed physicians to perform certain foot and ankle procedures [...]

The Effect of C-Arm Position on Radiation Exposure During Fixation of Pediatric Supracondylar Fractures of the Humerus

By |2020-07-27T14:32:07+00:00August 1st, 2014|

Publication: The Journal of Bone and Joint Surgery Date: August 2014 Authors: Hsu RY, Lareau CR, Kim JS, Koruprolu S, Born CT, Schiller JR Link to Full Text Abstract BACKGROUND: Closed reduction and percutaneous pinning of a pediatric supracondylar fracture of the humerus requires operating directly next to the C-arm to hold reduction and perform [...]

T2 * MR relaxometry and ligament volume are associated with the structural properties of the healing ACL

By |2020-07-17T14:26:53+00:00April 1st, 2014|

Publication: The Journal of orthopaedic research Date: April 2014 Authors: Biercevicz AM, Murray MM, Walsh EG, Miranda DL, Machan JT, Fleming BC Link to Full Text Abstract Our objective was to develop a non-invasive magnetic resonance (MR) method to predict the structural properties of a healing anterior cruciate ligament (ACL) using volume and T2 * [...]

Mechanical properties of revision ACL reconstruction

By |2020-07-27T13:28:47+00:00April 1st, 2014|

Publication: The Journal of Knee Surgery Date: April 2014 Authors: Behrens SB, Lee BJ, Paller D, Hoffman E, Heard WM, Monchik KO, Fadale PD Link to Full Text Abstract The aim of this study is to evaluate the mechanical properties of a revision anterior cruciate ligament (ACL) reconstruction after redrilling the original tibial bone tunnel [...]

A biomechanical evaluation of locked plating for distal fibula fractures in an osteoporotic sawbone model

By |2020-07-27T13:22:50+00:00March 1st, 2014|

Publication: Foot & Ankle Surgery Date: March 2014 Authors: Bariteau JT, Fantry A, Blankenhorn B, Lareau C, Paller D, Digiovanni CW Link to Full Text Abstract BACKGROUND: Supination external rotation (SER) injuries are commonly fixed with a one third tubular neutralization plate. This study investigated if a combination locked plate with additional fixation options was [...]

Effect of insertion of a single interference screw on the mechanical properties of porcine anterior cruciate ligament reconstruction grafts

By |2020-07-17T19:48:12+00:00November 1st, 2013|

Publication: American Journal of Orthopedics Date: April 2013 Authors: Wendell Mr Heard, David J Paller, Melissa A Christino, Steve B Behrens, Alison Biercevicz, Paul D Fadale, Keith O Monchik Link to Full Text Abstract The objective of this study was to evaluate the mechanical properties of soft-tissue grafts following a single interference screw insertion of [...]

Effectiveness of low-profile supplemental fixation in anterior cruciate ligament reconstructions with decreased bone mineral density

By |2020-07-21T17:55:58+00:00September 1st, 2013|

Publication: Arthroscopy: The Journal of Arthroscopic and Related Surgery Date: September 2013 Authors: Vopat B, Paller D, Machan JT, Avery A, Kane P, Christino M, Fadale P Link to Full Text Abstract PURPOSE: The purpose of this study was to compare anterior cruciate ligament (ACL) fixation using a bioabsorbable interference screw (BIS) and a supplemental [...]

Arthroscopic Suture Bridge Fixation of Tibial Eminence Fractures: A New Surgical Technique and Biomechanical Analysis.

By |2020-07-17T14:30:13+00:00August 1st, 2013|

Publication: Arthrosc Tech. Date: August 2013 Authors: Sawyer GA, Hulstyn MJ, Anderson BC, Schiller J. Link to Full Text Abstract Tibial intercondylar eminence fractures that are displaced and non-reducible require open or arthroscopically assisted repair. Ideally, fracture reduction and fixation would be performed with a technique that has low morbidity, allows easy visualization and reduction, provides [...]

Effect of distal interlock fixation in stable intertrochanteric fractures

By |2020-07-27T16:15:55+00:00July 1st, 2013|

Publication: Orthopedics Date: July 2013 Authors: Kane PM, Vopat B, Paller D, Koruprolu S, Born CT Link to Full Text Abstract The objective of this study was to evaluate the torsion stiffness of locked and unlocked distal fixation of long cephalomedullary nail constructs, in both a fresh fracture and healed, stable intertrochanteric fracture model. Samples [...]

Effect of interference screw fixation on ACL graft tensile strength

By |2020-07-17T19:51:59+00:00June 1st, 2013|

Publication: The Journal of Knee Surgery Date: June 2013 Authors: Sawyer GA, Anderson BC, Paller D, Heard WM, Fadale PD Link to Full Text Abstract Tibial-sided fixation of soft tissue grafts in anterior cruciate ligament (ACL) reconstruction has often been identified as the weak link in the fixation construct, with interference screws being a commonly [...]

Proximity of arthroscopic ankle stabilization procedures to surrounding structures: an anatomic study

By |2020-07-21T17:51:03+00:00June 1st, 2013|

Publication: Arthroscopy: The Journal of Arthroscopic and Related Surgery Date: June 2013 Authors: Drakos M, Behrens SB, Mulcahey MK, Paller D, Hoffman E, DiGiovanni CW Link to Full Text Abstract PURPOSE: To examine the anatomy of the lateral ankle after arthroscopic repair of the lateral ligament complex (anterior talofibular ligament [ATFL] and calcaneofibular ligament [CFL]) [...]

Wound hematoma after anterior cervical spine surgery: in vitro study of the pathophysiology of airway obstruction

By |2020-07-17T15:14:30+00:00June 1st, 2013|

Publication: American Journal of Orthopedics Date: June 2013 Authors: Thakur NA, McDonnell M, Paller D, Palumbo M Link to Full Text Abstract Airway obstruction by wound hematoma is a serious adverse event associated with anterior cervical spine surgery. Although intrinsic airway edema is the most plausible pathophysiologic mechanism of obstruction, we hypothesized that extrinsic compression [...]

Simulated Wound Hematoma Creates Tracheal Compression Within Physiological Pressures

By |2020-07-17T14:48:50+00:00June 1st, 2013|

Publication: American Journal of Orthopedics Date: June 2013 Authors: Thakur NA, McDonnell M, Paller D, Palumbo M Link to Full Text Abstract Airway obstruction by wound hematoma is a serious adverse event associated with anterior cervical spine surgery. Although intrinsic airway edema is the most plausible pathophysiologic mechanism of obstruction, we hypothesized that extrinsic compression of [...]

Biomechanical evaluation of mini-fragment hardware for supination external rotation fractures of the distal fibula

By |2020-07-17T15:10:35+00:00April 1st, 2013|

Publication: Foot & Ankle Specialist Date: April 2013 Authors: Bariteau JT, Blankenhorn BD, Lareau CR, Paller DJ, DiGiovanni CW Link to Full Text Abstract BACKGROUND: Supination external rotation distal fibula fractures are common, requiring fixation when associated with talar displacement. Subcutaneous distal fibula hardware may become painful, necessitating operative removal. We hypothesize that mini-fragment and [...]

Biomechanical analysis of Brostrom versus Brostrom-Gould lateral ankle instability repairs

By |2020-07-27T16:57:41+00:00April 1st, 2013|

Publication: Foot & Ankle International Date: April 2013 Authors: Behrens SB, Drakos M, Lee BJ, Paller D, Hoffman E, Koruprolu S, DiGiovanni CW Link to Full Text Abstract BACKGROUND: The traditional Brostrom repair and the modified Brostrom-Gould repair are 2 historically reliable procedures used to address lateral ankle instability. The purpose of this study was [...]

In Situ, noninvasive, T2*-weighted MRI-derived parameters predict ex vivo structural properties of an anterior cruciate ligament reconstruction or bioenhanced primary repair in a porcine model

By |2020-07-17T14:57:16+00:00March 1st, 2013|

Publication: The American Journal of Sports Medicine Date: March 2013 Authors: Biercevicz AM, Miranda DL, Machan JT, Murray MM, Fleming BC Link to Full Text Abstract BACKGROUND: Magnetic resonance imaging (MRI) is a noninvasive technology that can quantitatively assess anterior cruciate ligament (ACL) graft size and signal intensity. However, how those properties relate to reconstructed [...]

Locking buttons increase fatigue life of locking plates in a segmental bone defect model

By |2020-07-17T10:54:16+00:00March 1st, 2013|

Publication: Clinical Orthopaedics & Related Research Date: March 2013 Authors: Tompkins M, Paller DJ, Moore DC, Crisco JJ, Terek RM Link to Full Text Abstract BACKGROUND: Durability of plate fixation is important in delayed union. Although locking plates result in stronger constructs, it is not known if locking affects the fatigue life of a plate. [...]

A three-dimensional comparison of intramedullary nail constructs for osteopenic supracondylar femur fractures

By |2020-07-17T14:54:58+00:00February 1st, 2013|

Publication: Journal of OrthopaedicTrauma Date: February 2013 Authors: Paller DJ, Frenzen SW, Bartlett CS 3rd, Beardsley CL, Beynnon BD Link to Full Text Abstract OBJECTIVES: This study developed a new 6 degree-of-freedom, unconstrained biomechanical model that replicated the in vivo loading environment of femoral fractures. The objective of this study was to determine whether various [...]

Dynamic biomechanical examination of the lumbar spine with implanted total spinal segment replacement (TSSR) utilizing a pendulum testing system

By |2020-07-21T17:54:06+00:00February 1st, 2013|

Publication: PLoS ONE Date: February 2013 Authors: Daniels AH, Paller DJ, Koruprolu S, Palumbo MA, Crisco JJ Link to Full Text Abstract BACKGROUND: Biomechanical investigations of spinal motion preserving implants help in the understanding of their in vivo behavior. In this study, we hypothesized that the lumbar spine with implanted total spinal segment replacement (TSSR) [...]

Biomechanical comparison of parallel vs. 90 – 90 plating of bicolumn distal humerus fractures with intra-articular comminution

By |2020-07-17T14:37:20+00:00December 1st, 2012|

Publication: Journal of Hand Surgery Date: December 2012 Authors: Got C, Shuck J, Biercevicz A, Paller D, Mulcahey M, Zimmermann M, Blaine T, Green A Link to Full Text Abstract PURPOSE: To compare the biomechanical properties of 90-90 versus mediolateral parallel plating of C-3 bicolumn distal humerus fractures. METHODS: We created intra-articular AO/Orthopaedic Trauma Association [...]

Dynamic biomechanical examination of the lumbar spine with implanted total disc replacement using a pendulum testing system

By |2020-07-17T20:38:43+00:00November 1st, 2012|

Publication: Spine Date: November 2012 Authors: Daniels A, Paller D, Koruprolu S, McDonnell M, Palumbo M, Crisco J Link to Full Text Abstract STUDY DESIGN: Biomechanical cadaver investigation. OBJECTIVE: To examine dynamic bending stiffness and energy absorption of the lumbar spine with and without implanted total disc replacement (TDR) under simulated physiological motion. SUMMARY OF BACKGROUND [...]

Biomechanical analysis of suture bridge fixation for tibial eminence fractures

By |2020-07-17T13:50:15+00:00October 1st, 2012|

Publication: Arthroscopy: The Journal of Arthroscopic & Related Surgery Date: October 2012 Authors: Sawyer G, Anderson B, Paller D, Schiller J, Eberson C, Hulstyn M Link to Full Text Abstract PURPOSE: To perform a biomechanical analysis of suture bridge fixation for tibial eminence fractures using PushLock anchors (Arthrex, Naples, FL) and compare it with traditional suture fixation [...]

Examination of Cervical Spine Kinematics in Complex, Multi-planar Motions Following Anterior Cervical Discectomy and Fusion and Total Disc Replacement

By |2020-07-17T14:50:23+00:00July 1st, 2012|

Publication: International Journal of Spine Surgery Date: July 2012 Authors: Daniels A, Paller D, Feller R, Thakur N, Biercevicz A, Palumbo M, Crisco J, Madom I Link to Full Text Abstract BACKGROUND: The biomechanical behavior of total disc replacement (TDR) and anterior cervical discectomy and fusion (ACDF) incomplex multiplanar motion is incompletely understood. The purpose [...]

Initial fixation strength of transosseous-equivalent suture bridge rotator cuff repair is comparable with transosseous repair

By |2020-07-17T13:41:18+00:00January 1st, 2012|

Publication: The American Journal of Sports Medicine Date: January 2012 Authors: Behrens S, Bruce B, Zonno A, Paller D, Green A Link to Full Text Abstract BACKGROUND: The outcome of rotator cuff repair correlates with tendon healing. Early studies of arthroscopic rotator cuff repair demonstrate lower healing rates than traditional open techniques. Transosseous-equivalent repair techniques [...]

Accuracy of plain radiographs versus 3D analysis of ankle stress test.

By |2020-07-17T14:08:38+00:00October 1st, 2011|

Publication: Foot & Ankle International Date: October 2011 Authors: Hoffman E, Paller D, Koruprolu S, Drakos M, Behrens S, Crisco J, DiGiovanni C Link to Full Text Abstract BACKGROUND: Radiographic stress testing using both the anterior drawer (AD) and talar tilt (TT) technique is a widely accepted means of assessing ankle instability. The purpose of this study [...]

The mechanical axes of the wrist are oriented obliquely to the anatomical axes

By |2020-07-17T14:01:59+00:00January 1st, 2011|

Publication: The Journal of Bone and Joint Surgery Date: January 2011 Authors: Crisco J, Heard W, Rich R, Paller D, Wolfe S Link to Full Text Abstract BACKGROUND: the complex motions of the wrist are described in terms of four anatomical directions that are accomplished through the multiple articulations of the carpus. With minimal tendinous insertions, the [...]

The mechanical effect of commercially pure titanium and polyetheretherketone rods on spinal implants at the operative and adjacent levels

By |2020-07-17T10:58:43+00:00October 22nd, 2010|

Publication: Spine Date: October 2010 Authors: Turner JL, Paller DJ, Murrell CB Link to Full Text Abstract STUDY DESIGN: Single-level cadaveric lumbar constructs were instrumented with either polyetheretherketone (PEEK) or commercially pure (CP) titanium (Ti) rods and biomechanically evaluated. Strain from gauged bone screws and interbody (IB) spacers, kinematic motion, and caudal disc pressure measurements [...]

The mechanical effect of commercially pure titanium and polyetheretherketone rods on spinal implants at the operative and adjacent levels

By |2020-07-17T13:55:21+00:00October 1st, 2010|

Publication: Spine Date: October 2010 Authors: Turner J, Paller D, Murrell C Link to Full Text Abstract STUDY DESIGN: Single-level cadaveric lumbar constructs were instrumented with either polyetheretherketone (PEEK) or commercially pure (CP) titanium (Ti) rods and biomechanically evaluated. Strain from gauged bone screws and interbody (IB) spacers, kinematic motion, and caudal disc pressure measurements were [...]

Collagen scaffold supplementation does not improve the functional properties of the repaired anterior cruciate ligament

By |2020-07-27T16:14:59+00:00June 22nd, 2010|

Publication: Journal of Orthopaedic Research Date: June 2010 Authors: Fleming BC, Margarian EM, Harrison SL, Paller DJ, Murray MM Link to Full Text Abstract Primary suture anterior cruciate ligament (ACL) repair was abandoned in favor of reconstruction due to a high rate of clinical failures. However, the insertion of a collagen scaffold loaded with platelets [...]