Beck et al. used direct intraoperative inspection during surgical hip dislocation to test whether cam and pincer FAI produce distinct articular damage patterns. 302 hips were reviewed; 26 isolated cam and 16 isolated pincer cases were analyzed. The study defined the pathomechanics of each impingement type and reframed labral pathology as a consequence of bony impingement, not its cause.
Before this paper, the labral tear was treated as the primary pathology. Arthroscopic debridement was standard practice, and outcomes were poor precisely because the underlying bony deformity driving the tear was never addressed.
This paper proved the labrum fails because of what the bone is doing — not the other way around. The authors explicitly state that debridement without correcting FAI morphology "may explain the poor results reported after isolated arthroscopic labral debridement."
When you see a young man with groin pain and an aspherical femoral head on cross-table lateral imaging, expect anterosuperior cartilage shear with labral-cartilage separation at 1 o'clock. When you see a middle-aged woman with a deep socket and labral ossification on plain film, look for circumferential labral degeneration and a posteroinferior contrecoup lesion that the standard MRI sequence may miss.
The clinical rule this paper established: always evaluate and correct bony morphology before or during any labral procedure. This is the evidence behind why isolated arthroscopic debridement was abandoned in favor of cam resection and rim trimming.
Beck et al. used direct intraoperative inspection during surgical hip dislocation to test whether cam and pincer FAI produce distinct articular damage patterns. 302 hips were reviewed; 26 isolated cam and 16 isolated pincer cases were analyzed. The study defined the pathomechanics of each impingement type and reframed labral pathology as a consequence of bony impingement, not its cause.
Before this paper, the labral tear was treated as the primary pathology. Arthroscopic debridement was standard practice, and outcomes were poor precisely because the underlying bony deformity driving the tear was never addressed.
This paper proved the labrum fails because of what the bone is doing — not the other way around. The authors explicitly state that debridement without correcting FAI morphology "may explain the poor results reported after isolated arthroscopic labral debridement."
When you see a young man with groin pain and an aspherical femoral head on cross-table lateral imaging, expect anterosuperior cartilage shear with labral-cartilage separation at 1 o'clock. When you see a middle-aged woman with a deep socket and labral ossification on plain film, look for circumferential labral degeneration and a posteroinferior contrecoup lesion that the standard MRI sequence may miss.
The clinical rule this paper established: always evaluate and correct bony morphology before or during any labral procedure. This is the evidence behind why isolated arthroscopic debridement was abandoned in favor of cam resection and rim trimming.