Arthroscopic versus open osteoplasty of the head-neck junction: a cadaveric investigation.
OBJECTIVE
Femoroacetabular impingement can be successfully treated by open osteoplasty, although arthroscopic osteoplasty is growing in popularity. We compared the precision and accuracy of arthroscopic versus open osteoplasty.


METHODS
We randomly assigned 8 paired fresh-frozen cadaveric pelvises to an open or arthroscopic technique and performed osteoplasty on both anterior femoral head-neck junctions. We calculated the volume and location of the resected bone using digital subtraction of preoperative and postoperative computed tomography.


RESULTS
Statistical analysis showed no differences between the techniques regarding volume, depth, or overall arc of resection. The arthroscopic group was closer to the predetermined starting point, and the open group was closer to the end-point.


CONCLUSIONS
This study confirms the ability to perform arthroscopic decompressions of the head-neck junction for isolated cam-type impingement with accuracy and precision that approach those of the open surgical technique.


CONCLUSIONS
This report gives important information on the accuracy and precision of arthroscopic osteoplasty of the femoral head-neck junction as a feasible alternative to open resection.
Schulthess Klinik, Zurich, Switzerland. sussmannp@gmx.net
Patrick S
PS
Sussmann
Anil S
AS
Ranawat
Joseph
J
Lipman
Dean G
DG
Lorich
Douglas E
DE
Padgett
Bryan T
BT
Kelly
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001182:Arthroscopy / Q000379:methods*; D002102:Cadaver; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging / Q000601:surgery*; D005272:Femur Neck / Q000000981:diagnostic imaging / Q000601:surgery*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000379:methods*; D019651:Plastic Surgery Procedures / Q000379:methods*; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed