Dr. Jiwu Chen

Both remnant-preserving single-bundle and double-bundle ACL reconstruction can improve knee function. Everyday recovery is broadly similar; double-bundle reconstruction may offer an advantage in rotational stability and return to high-intensity sport.

Hip instability is diagnosed by combining history, physical examination, and imaging; treatment depends on the cause, severity, and structural findings.

Recurrent groin or deep hip pain without a clear explanation may warrant assessment for hip instability.

Black phosphorus nanomaterials show preclinical potential to support bone mineralization, improve the repair microenvironment, protect cartilage, and help address implant-related infection.

A practical guide to common ACL injury symptoms, including a popping sensation, rapid swelling, knee instability, and why MRI is often needed.

An ACL tear does not automatically mean surgery is required. Treatment depends on knee stability, activity goals, associated injuries, and commitment to rehabilitation.

ACL reconstruction should not be rushed while the knee is swollen and stiff, but delaying too long may increase the risk of meniscus and cartilage injury.

ACL reconstruction uses a graft to create a new stabilizing ligament. Autograft, allograft, and synthetic ligaments each have different roles, and the best choice depends on age, sport goals, work demands, and knee condition.

Recovery after ACL reconstruction depends on more than time. Walking, running, and return to sport should be guided by range of motion, strength, swelling, balance, movement control, and confidence.