Stem cell therapy in early post-traumatic talus osteonecrosis

Area of Science:

• Orthopedics
• Regenerative Medicine
• Biomaterials

Background:

• Avascular necrosis of the talus is a severe complication of talar neck fractures, often leading to challenging arthrodesis.
• Early intervention is crucial to prevent osteonecrosis progression and the need for further surgical procedures.

Purpose of the Study:

• To evaluate the efficacy of autologous bone marrow mesenchymal stem cells (MSCs) injection in treating early post-traumatic avascular necrosis of the talus.
• To compare the outcomes of MSCs injection with traditional core decompression alone.

Main Methods:

• A prospective study involving 45 patients with early talus osteonecrosis treated with percutaneous injection of autologous bone marrow concentrate (MSCs).
• A control group of 34 patients with similar conditions treated with core decompression alone between 1985 and 2012.
• Outcomes assessed by radiographic progression to collapse, need for arthrodesis, and time to fusion.

Main Results:

• Lower collapse frequency in the MSCs group (27%) compared to the control group (71%) (P=0.0002).
• Longer survival duration before collapse or arthrodesis in the MSCs group.
• Significantly shorter time to achieve fusion after arthrodesis in the MSCs group.

Conclusions:

• Early surgical treatment with autologous bone marrow grafting improves the natural course of talus osteonecrosis.
• Mesenchymal stem cell therapy offers a promising alternative to core decompression for managing avascular necrosis of the talus.