Biological and Biomechanical Evaluation of Autologous Tendon Combined with Ligament Advanced Reinforcement System Artificial Ligament in a Rabbit Model of Anterior Cruciate Ligament Reconstruction.

Objective: To compare the biomechanical and histological changes in a rabbit model after reconstructing the anterior cruciate ligament (ACL) with solely autologous tendon and with autologous tendon combined with the ligament advanced reinforcement system (LARS) artificial ligament.

Methods: Anterior cruciate ligament reconstruction was performed in 72 knees from 36 healthy New Zealand white rabbits (bodyweight, 2500-3000 g). The Achilles tendons were harvested bilaterally.

Influence of different great trochanteric entry points on the outcome of intertrochanteric fractures: a retrospective cohort study.

Background: The Proximal Femoral Nail Antirotation (PFNA) system for treatment of intertrochanteric fractures is currently widely applied worldwide. However, even though the PFNA has produced good clinical outcomes, a poor introduction technique with an inappropriate entry point can cause surgical complications. Some researchers suggest improving clinical outcomes by modifying the entry point, but no research has focused on this issue.

Single-bundle modified patellar tendon versus double-bundle tibialis anterior allograft ACL reconstruction: a prospective randomized study.

Purpose: The purpose of this study was to prospectively compare the outcomes of single-bundle (SB) anterior cruciate ligament (ACL) reconstruction with modified bone-patellar tendon-bone (BPTB) allograft and double-bundle (DB) reconstruction with tibialis anterior allograft.

Methods: With 94 patients enroled in the study, 43 subjects who had SB ACL reconstruction with modified BPTB allograft (group S) and 41 subjects of DB ACL reconstruction with tibialis anterior allograft (group D) were followed up for a minimum of 2 years. Clinical outcomes including Lachman and pivot-shift tests, KT-1000 arthrometer measurements, and the International Knee Documentation Committee (IKDC) classification, Lysholm and Tegner activity scores were compared between the two groups at the last follow-up.

The horizontal Y-shaped graft with respective graft tension angles in anatomical two-bundle medial patellofemoral ligament reconstruction.

Purpose: Various techniques for medial patellofemoral ligament (MPFL) reconstruction have been described with two bundles of graft tensioned simultaneously. The present study was to introduce an anatomical reconstruction procedure using a horizontal Y-shaped graft with respective graft tension angles and report the preliminary results.

Methods: A surgical technique for MPFL reconstruction using a horizontal Y-shaped semitendinosus tendon autograft with two bundles tensioned at 0° and 30° of knee flexion was described in detail.

Arthroscopic single-bundle ACL reconstruction with modified double-layer bone-patellar tendon-bone allograft.

Purpose: The objective of present study was to introduce a modified double-layer bone-patellar tendon-bone (BPTB) allograft for arthroscopic single-bundle ACL reconstruction and investigate the clinical outcomes.

Methods: From 2007 to 2009, a total of 136 patients underwent arthroscopic single-bundle ACL reconstructions with BPTB allograft. Of which, 66 patients were with double-layer BPTB allograft (Group 1), and 70 patients were with conventional BPTB allograft (Group 2).

Non-surgical treatment for acute patellar dislocation with special emphasis on the MPFL injury patterns.

Purpose: The objective of present study was to propose a new classification for acute MPFL injury, which can help choose optimal treatment method for certain injury type.

Methods: Eighty-five patients with acute patellar dislocation treated non-surgically were retrospectively reviewed. They were assigned into two groups according to the newly introduced classification scheme, which classified MPFL injury into three types: injury in overlap region, injury in non-overlap region and combined injury of both regions.

[Arthroscopic single-bundle anterior cruciate ligament reconstruction with six-strand hamstring tendon and patellar tendon allograft].

Objective: To compare the outcome of arthroscopic single-bundle anterior cruciate ligament (ACL) reconstruction with six-strand hamstring tendon and patellar tendon allograft.

Methods: From October 2006 to December 2009, 108 patients with arthroscopic single-bundle ACL reconstruction were retrospectively reviewed, with 58 patients with six-strand hamstring tendon (Group H), and 50 patients with patellar tendon allograft (Group P). Patients were available for clinical evaluation with KT-1000 arthrometer measurements, Lachman and pivot-shift test, and knee function with the International Knee Documentation Committee (IKDC), Lysholm scores.

Combination of medial patellofemoral ligament reconstruction with vastus medialis advancement for chronic patellar dislocation.

Background: The medial patellofemoral ligament (MPFL) reconstruction is popular in clinical practice for chronic patellar dislocation; however, the combination with vastus medialis advancement is rare. The aim of this study was to evaluate the clinical outcome of the combination of MPFL reconstruction with vastus medialis advancement.

Methods: We retrospectively analyzed 69 patients with chronic patellar dislocation between July 2004 and October 2008: twenty eight cases with isolated MPFL reconstruction (group I), forty one cases with the combination of MPFL reconstruction with vastus medialis advancement (group C).

[Comparison of clinical results between an isometric and an anatomic technique for medial patellofemoral ligament reconstruction].

Objective: To compare the clinical results of single-stranded isometric with double-stranded anatomic reconstruction of medial patellofemoral ligament (MPFL) for recurrent patellar dislocation.

Methods: Retrospective analysis of 60 consecutive patients (72 knees) with recurrent patellar dislocation underwent medial patellofemoral ligament reconstruction between August 2004 and October 2008, 22 cases (27 knees) with single-stranded isometric reconstruction, 38 cases (45 knees) with double-stranded anatomic reconstruction. Postoperatively patellar stability was examined, and recurrent rate was recorded.

Functional bundles of the medial patellofemoral ligament.

The purpose of this study was to explore the anatomy and evaluate the function of the medial patellofemoral ligament (MPFL). Anatomical dissection was performed on 12 fresh-frozen knee specimens. The MPFL is a condensation of capsular fibers, which originates at the medial femoral condyle.