Combined Hip and Knee Strengthening Compared With Knee Strengthening for Individuals With Lateral Patellar Dislocation: A Single-blind, Superiority, Randomized Controlled Trial.

Objective: To investigate whether a combined hip and knee muscle strengthening program is superior to a knee strengthening program for people after lateral patellar dislocation (LPD).

Design: Single-blind, superiority, randomized controlled trial with 48 weeks follow-up.

Setting: Physiotherapy out-patient clinic.

Return to Sports After High Tibial Osteotomy Using the Opening Wedge Technique.

 The present paper evaluates the resuming of physical activities by young, active patients who practiced some sport modality and underwent a high tibial osteotomy (HTO) using the opening wedge technique.  A total of 12 patients submitted to HTO using the opening wedge technique were prospectively analyzed. All patients were not playing sports at that time.

Bicruciate lesion biomechanics, Part 2-treatment using a simultaneous tensioning protocol: ACL fixation first is better than PCL fixation first to restore tibiofemoral orientation.

Purpose: An uncommon technique for bicruciate ligament reconstruction involving simultaneous tensioning of the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) grafts with ACL graft fixation first has been pointed out as superior to the "gold-standard" PCL graft fixation first. The purpose of this study was to compare tibiofemoral biomechanics between ACL fixation first and PCL fixation first in a simultaneous tensioning protocol for bicruciate ligament reconstruction.

Methods: 12 fresh-frozen cadaveric knees (six matched pairs) were tested using a custom testing system.

Bicruciate lesion biomechanics, Part 1-Diagnosis: translations over 15 mm at 90° of knee flexion are indicative of a complete tear.

Purpose: Understanding the pathomechanics of a bicruciate injury (BI) is critical for its correct diagnosis and treatment. The purpose of this biomechanical study aims to quantify the effects of sequential sectioning of the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) bundles on knee laxity.

Methods: Twelve cadaveric knees (six matched pairs) were used.

Relationship Between the Middle Genicular Artery and the Posterior Structures of the Knee: A Cadaveric Study.

Background: The middle genicular artery (MGA) is responsible for the blood supply to the cruciate ligaments and synovial tissue. Traumatic sports injuries and surgical procedures (open and arthroscopic) can cause vascular damage. Little attention has been devoted to establish safe parameters for the MGA.

Influence of body mass index in revision total knee arthroplasty.

Objective: : To evaluate the influence of the body mass index (BMI) on the functional assessment of patients who underwent revision total knee arthroplasty (RTKA).

Methods: : Thirty patients who un-derwent RTKA between January 2008 and January 2012 were retrospectively assessed using the WOMAC questionnaire. The patients were divided into three groups according to the BMI ca-tegories defined by the World Health Organization (WHO): Group I with normal BMI (18-24.

Anterolateral ligament anatomy: a comparative anatomical study.

Purpose: Some anatomical studies have indicated that the anterolateral ligament (ALL) of the knee is distinct ligamentous structure in humans. The purpose of this study is to compare the lateral anatomy of the knee among human and various animal specimens.

Methods: Fifty-eight fresh-frozen knee specimens, from 24 different animal species, were used for this anatomical study.

Surgical treatment for muscle injuries.

Muscle injury causes functional impairment. The healing process takes time and fibrotic tissue can result. Recurrence and delayed recovery remain as unsolved problems.

Common injuries in athletes' knee: experience of a specialized center.

Objective: The present cross-sectional study aims to identify the most common knee injuries in athletes cared at a Specialized Outpatient Clinics.

Method: Analysis of patients cared at the Knee Outpatient Clinics of a Sports Trauma Center, divided by gender, age and diagnosed injury.

Results: Initially 440 patients were divided into 33 types of sports; after excluding the less statistically significant practices, nine sports remained.

Updates in biological therapies for knee injuries: full thickness cartilage defect.

Full thickness cartilage defect might occur at different ages, but a focal defect is a major concern in the knee of young athletes. It causes impairment and does not heal by itself. Several techniques were described to treat symptomatic full thickness cartilage defect.

Return to sport after surgical treatment for pubalgia among professional soccer players.

Objective: to evaluate the return to sport after surgical treatment for pubalgia among 30 professional soccer players and describe the surgical technique used.

Method: this case series was evaluated by means of a questionnaire and physical examination on 30 male professional soccer players of mean age 24.4 years (range: 18-30).

BILATERAL OSTEOCHONDRITIS DISSECANS OF THE KNEE IN A BASKETBALL PLAYER: CASE REPORT.

The authors report a case of bilateral osteochondritis dissecans in a 17-year-old basketball player who was diagnosed and treated as shown in the literature.

LIPOSARCOMA OF THE KNEE IN A TENNIS PLAYER: CASE REPORT.

Liposarcoma is an uncommon malignant tumor. It originates in the mesenchymal cells, and is the most common of the soft tissue sarcomas. The authors report a case of a 40 year-old male tennis player with liposarcoma in the posterior right knee and distal thigh region.

LEG'S COMPARTMENT SYNDROME AFTER RECONSTRUCTION OF THE ANTERIOR CRUCIATE LIGAMENT: CASE REPORT.

The authors report a case of a patient that was submitted to a surgery of reconstruction of anterior cruciate ligament and collateral medial ligament repair of the left knee that complicated to a compartment syndrome.

SYNOVIAL CHONDROMATOSIS OF THE KNEE: CASE REPORT.

The authors report the case of a patient with synovial osteochondromatosis of the knee, who had previously been a soccer player.

SUPRA AND INTRACONDYLAR OPEN FRACTURE OF THE FEMUR IN A MOTOCROSS ATHLETE: CASE REPORT.

The authors report the case of a patient (amateur motocross competitor) who suffered a fall during a motocross competition resulting in a supra and intracondylar open fracture in the right femur.

Anatomic relation between the posterior cruciate ligament and the joint capsule.

Purpose: The aim of this anatomic study on cadavers was to determine the anatomic relation between the posterior cruciate ligament (PCL) and the posterior joint capsule attachment.

Methods: Thirty knees were dissected by means of a posterior approach to the knee. The presence of the posterior popliteal ligament and Wrisberg meniscofemoral ligament was observed and a U-shaped capsulotomy was performed while preserving the distal insertion of the ligament.

Anterior cruciate ligament reconstruction after 10 to 15 years: association between meniscectomy and osteoarthrosis.

Purpose: To evaluate the stability and arthrosis of the knee 10 to 15 years after arthroscopic-assisted anterior cruciate ligament (ACL) reconstruction with patellar tendon graft.

Methods: From July 1986 to March 1991, 82 patients underwent arthroscopic-assisted ACL reconstruction with patellar tendon graft. Of these, 62 returned for follow-up evaluation between November 2000 and April 2001.