Learn Orthopedic Surgery, From the Source

Endoprosthesis

reconstruction is a cornerstone technique in musculoskeletal oncology, allowing immediate restoration of skeletal continuity and early mobilization after wide tumor resection. Modern modular megaprostheses, made of titanium or cobalt-chromium alloys, are designed for durability, functional recovery, and ease of revision. They are primarily indicated for periarticular or diaphyseal bone loss following tumor excision, failed fixation, or pathological fractures. Cemented fixation ensures immediate stability, while press-fit and porous-coated designs promote biological integration. Despite excellent limb salvage rates (>90%), complications such as infection, aseptic loosening, and mechanical failure remain challenges. Advances including silver-coated implants, expandable pediatric prostheses, and improved soft-tissue reattachment techniques continue to enhance long-term outcomes and quality of life for oncology patients.

Osteosarcoma

High-grade, malignant, osteoid-producing sarcoma of bone. Most common primary bone sarcoma. Arises predominantly in metaphysis of long bones (esp. around the knee).

LIMB LENGTHENING

Medial Colletaral Ligament(MCL) Injury of the Knee

Posteromedial Corner (PMC) Injuries of the Knee

Posterolateral Corner Injury

The effects of postoperative malrotation alignment on outcomes of Gartland type III/ IV paediatric supracondylar humeral fractures treated by close reduction and percutaneous K‑wire fixation

Journal of Orthopaedic Surgery and Research

Can achilles tendon ruptures be treated via PRP?

This study aimed to determine whether platelet-rich plasma (PRP) injections promote healing and improve functional outcomes in nonsurgically treated acute Achilles tendon ruptures (ATRs).The research was designed as a randomized, double-blinded, and placebo-controlled prospective trial that included 40 male patients with an acute ATR.Patients received either four PRP or four placebo (saline) injections 14 days apart, in addition to standard orthosis treatment and a progressive exercise program.Over a 12-month follow-up period, the researchers evaluated the self-reported Achilles tendon Total Rupture Score (ATRS) alongside functional metrics such as heel-rise work, tendon elongation, calf circumference, and ankle dorsiflexion.The findings revealed that while both groups experienced significant improvement over time, there was no statistical difference between the PRP and placebo groups regarding ATRS or any functional outcomes at any point.Ultimately, the study concluded that the application of multiple PRP injections did not provide any superior clinical or functional benefits for patients with nonsurgically treated acute ATRs.

Optimal Tightrope Positioning for Adequate Syndesmotic Stabilization in Simulated Syndesmotic Injuries

Foot Ankle Orthop. 2025 Jun 19;10(2):24730114251342243. doi: 10.1177/24730114251342243. eCollection 2025 Apr. Optimal Tightrope Positioning for Adequate Syndesmotic Stabilization in Simulated Syndesmotic Injuries Mark A Goss et al.