Included studies involving symptomatic participants only
| Author | Study design | Study population | Participants (hips, n) | Demographics | Imaging modality | Findings (intra-articular pathology) |
| Domb et al 55 | Case series | Retired NFL players with hip pain | 38 (62) | Age*: 33 (†27–39) Sex: 38 M | 1.5 T MRI 1.5 T MRA | Labral tear: 55/62; cartilage defect (gr 1/2): 61/62; cartilage defect (gr 3): 0/62; ligamentum teres tear (partial to severe): 50/62; osteophyte: 3/62; subchondral bone cyst: 9/62; paralabral cyst: 3/62; bursitis: 0/62; loose bodies: 0/62; transverse ligament tear: 2/62; AVN: 0/62 |
| Jayakar et al 61 | Case series | Individuals with hip pain | 192 (208) | Age*: 61 (8.9) (†50–92) Sex: 139 F/69 M | MRA | Labral tear: 152/208; labral fraying: 42/208; no labral tearing: 14/208; tonnis gr 0–1—labral tearing: 133/182, labral fraying: 35/182, no labral tearing: 14/182; tonnis gr 2–3 —labral tearing: 19/26, labral fraying: 7/26, no labral tearing: 0/26 |
| Kassarjian et al 41 | Case series | Individuals with clinical signs of FAI | 40 (42) | Age*: 36.5 (12) (†17–67) Sex: 18 F/22 M | 1.5 T MRA | Labral tear: 42/42; cartilage defect: 40/42; triad (abnormal AA, anterosuperior cartilage abnormalities, anterosuperior labral tear): 37/42; paralabral cyst: 6/42 (6/6 triad abnormalities); herniation pit: 2/42 (2/2 triad abnormalities); os acetabuli: 17/42 (16/17 triad abnormalities) |
| Narvani et al 44 | Case series | Individuals playing sport with groin pain | 18 (18) | Age*: 30.5 (8.5) (17–48) Sex: 5 F/13 M | 1 T MRA | Labral tear: 4/18 |
| Neiman et al 63 | Case series | Individuals with hip pain | 229 (229) | Age*: 36.5 (14.2) (†18–67) Sex: 102 F/127 M | 1.5 T MRA | Labral tear: 146/229; cartilage defect: 64/229; ligamentum teres partial tears: 2/229; ligamentum teres complete tears: 2/229; synovitis: 3/229; transient osteoporosis of the hip: 2/229; PVNS: 1/229; AVN: 1/229 |
| Neumann et al 45 | Case series | Individuals with mechanical hip pain | 100 (100) | Age*: 39 (13) (†17–76) Sex: 76 F/ 24 M | 1.5 T MRA | Labral tear: 66/100; cartilage defect: 76/100; BML: 29/100; osteophytes: 32/100; subchondral cysts: 23/100; subchondral sclerosis: 22/100 |
| Pizzolatti et al 47 | Case series | Individuals with suspicion of labral tear | 96 (108) | Age*: M 39.3 (†18–63) Age*: F 41.3 (†20–73) Sex: 59 F/37 M | 0.5 T MRA 1.5 T MRA | Labral tear (per person): 96/96; labral tear (per hip): 108/108; isolated labral tears: 24/108; completely torn labrum: 43/108 hips; first-degree labral tear: 44/108; second-degree labral tear: 34/108; third-degree labral tear: 30/108; cartilage defect: 88/108; cartilage defect in entire weightbearing zone: 46/108; first-degree cartilage defect: 55/108; second-degree cartilage defect: 14/108; third-degree cartilage defect: 19/108 |
*Mean (SD).
†Range.
AA, alpha angle; AVN, avascular necrosis; BML, bone marrow lesion; F, female; FAI, femoroacetabular impingement; Gr, grade; M, male; MRA, magnetic resonance arthrography; PVNS, pigmented villonodular synovitis.