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Knee Conditions

Imaging of the knee joint

The knee is one of the most commonly injured joints in the human body, especially in the setting of sports injuries. Sudden twisting movements that place torsional stress on the joint with the foot in a fixed position often...read more


Shoulder Conditions

YouTube Provides Low-Quality Educational Content About Rotator Cuff Disease

YouTube videos have become a popular source of healthcare information in orthopedic surgery. It allows patients to engage in visual learning about common orthopedic problems like Anterior Cruciate Ligament and Rotator Cuff tears. However, YouTube does not regulate the...read more


Knee Conditions

Tunnel Convergence when Reconstructing Anterior and Posterior Cruciate Ligaments with Meniscal Root Repair

Patients with multiligament knee injuries, which are injuries to several of the ligaments on the inside and/or outside of the knee, represent a subset of patients who require careful planning before surgery due to the complexity of the procedure....read more


Knee Conditions

Review of Meniscus Anatomy and Biomechanics

Meniscal tears can cause profound functional, biomechanical, and kinematic derangements within the knee joint, leading to accelerated degeneration of the articular cartilage. The purpose of this review is to summarize the relevant anatomy, biomechanics, and kinematics of the meniscus...read more


Shoulder Conditions

Proximal Humerus Fractures

Proximal humerus fractures are the third most common fracture in the elderly population. Patients who suffer from these fractures may suffer from significant morbidity, and there is a 10% mortality rate at one-year post-injury reported in the literature. Treatment...read more


Knee Conditions

Patellar Tendon Repair with Double-Row Suture Anchors and Achilles Allograft

Chronic patellar tendon injuries are defined as tears greater than 2 weeks old and are typically more complex to manage than acute tears. As the duration from injury progresses, the tear edges retract, tendon quality degenerates, and surrounding supportive...read more


Knee Conditions

Microfracture + Augmentation for Focal Chondral Lesions in the Knee

Cartilage in the knee joint has multiple purposes, primarily serving as a cushion between the femur and tibia. When the cartilage is damaged, focal lesions can develop that may cause significant pain and disability. Cartilage has a limited inherent...read more


Knee Conditions

Medial Meniscus Transplantation and Bone-Tendon-Bone Anterior Cruciate Ligament Reconstruction

The medial meniscus and the anterior cruciate ligament (ACL) both play a role in keeping the knee stable. When one or both structures are damaged, it causes the tibia to shift forward in relation to the femur, giving these...read more


Knee Conditions

Double Bundle Posterior Cruciate Ligament Reconstruction

The posterior cruciate ligament (PCL) is one of the two major ligaments within the knee, alongside the anterior cruciate ligament (ACL). Although the PCL is considered one ligament, it is comprised of two distinct “bundles,” each of which plays...read more


Knee Conditions

Bridge-Enhanced Anterior Cruciate Ligament Repair

The anterior cruciate ligament (ACL) is one of the two major ligaments inside the knee, and is responsible for providing stability to the knee. Unfortunately, ACL tears are extremely common, especially in the younger, athletic patient population. The typical...read more


Knee Conditions

Anatomic Posterolateral Corner Reconstruction

Various techniques have been described for management of injuries of the posterolateral corner (PLC) of the knee. The anatomic PLC reconstruction technique has numerous benefits, including the restoration of the anatomy of the 3 primary stabilizers of the PLC...read more


Orthopedic Innovation

Two-Stage Revision Anterior Cruciate Ligament Reconstruction with Cannulated Allograft Bone Dowels Soaked in Bone Marrow Aspirate Concentrate

Anterior cruciate ligament reconstruction (ACLR) is one of the most common orthopedic procedures performed each year. The majority of patients undergoing these reconstructions will experience long-term stability and symptomatic relief; however, some will require a revision ACLR procedure. In...read more


Orthopedic Innovation

Trochlear Osteochondral Shell Allograft Technique to Treat Trochlear Dysplasia in the Setting of Chondral Damage and Chronic Patellar Instability

The patellofemoral joint is a complex portion of knee anatomy that is composed of the end of the thigh bone and kneecap. Patients who have structural abnormalities in the surrounding ligaments and bony anatomy as well as functional factors...read more


Orthopedic Innovation

Three-Dimensional Patient Specific Instrumentation and Cutting Guide for Medial Closing Wedge High Tibial Osteotomy to Correct Valgus Malalignment

Achievement of correct knee alignment is crucial to ensure the best outcomes following a procedure to re-align the knee. The use of customized surgical instrumentation for individual patients to assist in preoperative planning and intraoperative realignment has gained increasing...read more


Orthopedic Innovation

Social Media and Orthopedics: An Evolving Relationship

Growing technological advances and accessibility has led to drastic increases in connectivity and overall internet usage across the globe. Social media is a very powerful tool to connect a large number of people, who may have otherwise been inaccessible....read more


In The Media

Chicago Sports Medicine Surgeon Treats Three International Athletes’ Knees

Orthopedic surgeon Dr. Jorge Chahla was recently featured in The Chicago Daily Tribune’s article, ‘Chicago Sports Medicine Surgeon Treats Three International Athletes’ Knees – WFMZ Allentown’. Here is an excerpt of the article, ‘In the past six months, Dr....read more


Knee Conditions

Dr. Jorge Chahla performs knee surgery on professional tennis player Juan Martin del Potro.

Dr. Chahla is proud and thankful to have been the orthopedic surgeon of choice for professional tennis player Juan Martin del Potro. The former World No. 3 tennis player del Portro said, “I’ve been consulting Dr Jorge Chahla and...read more


Knee Conditions

Dr. Jorge Chahla performs knee surgery on US Open tennis player Luisa Stefani.

Dr. Chahla is proud and thankful to have been the orthopedic surgeon of choice for professional tennis player Luisa Stefani. Unfortunately, Luisa suffered a right knee injury during the women’s doubles semifinal of the US Open. Dr. Chahla was...read more


Knee Conditions

Dr. Jorge Chahla performs arthroscopic knee surgery on Seattle Sounders midfielder Nico Lodeiro.

Dr. Chahla is proud to have been the orthopedic surgeon of choice for professional soccer player Nico Lodeiro of the Seattle Sounders. Read The Seattle Times article, ‘Sounders midfielder Nico Lodeiro undergoes arthroscopic knee surgery‘ to learn more....read more


Knee Conditions

Two-Stage Revision Anterior Cruciate Ligament Reconstruction with Cannulated Allograft Bone Dowels Soaked in Bone Marrow Aspirate Concentrate

Anterior cruciate ligament reconstruction (ACLR) is one of the most common orthopedic procedures performed each year. The majority of patients undergoing these reconstructions will experience long-term stability and symptomatic relief, however, some will require a revision ACLR procedure. In...read more


Biologic Publications

Biological treatment of the knee with platelet-rich plasma or bone marrow aspirate concentrates

Knee pathologies including focal cartilage injuries, osteoarthritis and ligament injuries are common. The use of biologic agents has emerged as an option for treating these diseases. Platelet-rich plasma (PRP) has gained significant interest for treating common sports medicine injuries....read more


Knee Publications

Type II Medial Meniscus Root Repair With Peripheral Release for Addressing Meniscal Extrusion

PMID: 31687324 Medial meniscal root tears are often disabling injuries that can occur in isolation during low-velocity, deep knee flexion movements in middle-aged patients. These lesions often demonstrate a type II pattern, which is described by a tear perpendicular...read more


Knee Publications

The Influence of Graft Tensioning Sequence on Tibiofemoral Orientation During Bicruciate and Posterolateral Corner Knee Ligament Reconstruction: A Biomechanical Study

When multiple ligaments are reconstructed during knee surgery, the order of tensioning each graft can affect alignment of the tibia and femur. If the resulting alignment varies from what naturally occurs, issues such as instability and graft failure may...read more


Hip Publications

Return to running after arthroscopic hip surgery- literature review and proposal of a physical therapy protocol Commentary

Hip arthroscopy is an increasingly utilized surgical treatment option for patients presenting with pain and limited function. As surgical techniques have increasingly developed, so too have the rehabilitation protocols designed specifically for each patient. In high-impact sports that cause...read more


Hip Publications

Patients With Borderline Hip Dysplasia Achieve Clinically Significant Improvement After Arthroscopic Femoroacetabular Impingement Surgery Commentary

Hip arthroscopy is an increasingly common treatment surgeons use to get inside a patient’s hip and treat diagnosed pathologies. For example, studies have demonstrated significant improvements in clinical outcomes following arthroscopy in those with femoroacetabular impingement syndrome (FAIS), more...read more


Hip Publications

Evidence for the Use of Cell-Based Therapy for the Treatment of Osteonecrosis of the Femoral Head- A Systematic Review of the Literature Commentary

Osteonecrosis of the femoral head (ONFH) occurs due to a defect in the blood supply to the femoral head. This inadequate supply leads to death of the subchondral bone and bone marrow and is the reason for approximately one...read more


Cartilage Publications

Viability and Tissue Quality of Cartilage Flaps from Patients with Femoroacetabular Hip Impingement: A Matched-Control Comparison

CAM type Femoroacetabular impingement (FAI) is a condition where a boney overgrowth on the femur pinches the socket it rests in resulting pain, injury to the surrounding labrum and sometimes a loose cartilage flap. During surgery, the damaged flap...read more


Biologic Publications

The Role of Orthobiologics in the Management of Osteoarthritis and Focal Cartilage Defects

This study talks about newer biologic treatments in use to potentially slow disease progression in patients with knee osteoarthritis. These include hyaluronic acid, platelet-rich plasma (PRP), bone-marrow aspirate concentrate (BMAC) and adipose-derived mesenchymal stem cells. Believed to affect tissue...read more


Knee Publications

Quantitative and Qualitative Assessment of Posterolateral Meniscal Anatomy: Defining the Popliteal Hiatus, Popliteomeniscal Fascicles, and the Lateral Meniscotibial Ligament

PMID: 31136201 Surgical treatment of lateral meniscal tears can be challenging due to the greater mobility of the lateral meniscus, thin capsule, and management of the popliteal hiatus. In such instances, having a detailed understanding of relevant anatomy is...read more


Knee Publications

Single-Stage Multiple-Ligament Knee Reconstructions for Sports-Related Injuries: Outcomes in 194 Patients

Multi-ligament knee injuries in the young and active population can be devastating. This case series sought to report outcomes following sports-related single-stage multi-ligament knee reconstructions. Over a 6-year period, 194 patients that sustained injury to least two out of...read more


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