1. Technique of Arthroscopically Assisted Transtrochanteric Drilling for Femoral Head Chondral Defects 
Sivashankar Chandrasekaran, M.B.B.S., F.R.A.C.S., Dror Lindner, M.D., Timothy J. Martin, M.A., Parth Lodhia, M.D., Carlos Suarez- Ahedo, M.D., Benjamin G. Domb, M.D. 
Arthroscopy Techniques 
Volume 4, Issue 4, Pages e287-e291 (August 2015)
DOI: /j.eats
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2. Fig 1
Parafoveal femoral head chondral lesion measuring less than 4 cm debrided to stable rim.
Arthroscopy Techniques 2015 4, e287-e291DOI: ( /j.eats )
Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

3. Fig 2
Center of chondral lesion localized with tip of hooked instrument.
Arthroscopy Techniques 2015 4, e287-e291DOI: ( /j.eats )
Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

4. Fig 3
Trajectory of guide pin verified under fluoroscopy on anteroposterior and lateral images.
Arthroscopy Techniques 2015 4, e287-e291DOI: ( /j.eats )
Copyright © 2015 Arthroscopy Association of North America Terms and Conditions

5. Fig 4
Arthroscopic confirmation that chondral defect is perforated by K-wire.
Arthroscopy Techniques 2015 4, e287-e291DOI: ( /j.eats )
Copyright © 2015 Arthroscopy Association of North America Terms and Conditions