Anterior Impingement Test for Labral Lesions Has High Positive Predictive Value

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228

Background Although periacetabular osteotomy (PAO) for developmental dysplasia of the hip (DDH) provides conceptual advantages compared with other osteotomies and reportedly is associated with joint survivorship of 60% at 20 years, the beneficial effect of proper acetabular reorientation with concomitant arthrotomy and creation of femoral head-neck offset on 10-year hip survivorship remains unclear. Questions/purposes We asked the following questions: (1) Does the 10-year survivorship of the hip after PAO improve with proper acetabular reorientation and a spherical femoral head; (2) does the Merle d'Aubigné-Postel score improve; (3) can the progression of osteoarthritis (OA) be slowed; and (4)

Section: Discussionmentioning

confidence: 92%

Impingement Adversely Affects 10-year Survivorship After Periacetabular Osteotomy for DDH

Albers

Steppacher

Ganz

et al. 2013

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228

“…In addition, patients with acetabular dysplasia could test positive [25,27]. A high positive predictive value of the anterior impingement test was recently reported [17]. Fourth, the question regarding hip discomfort during the past 3 months for each of the hips was not validated.…”

Section: Discussionmentioning

confidence: 98%

Is a Positive Femoroacetabular Impingement Test a Common Finding in Healthy Young Adults?

Laborie

Lehmann

Engesæter

et al. 2013

Background Femoroacetabular impingement (FAI) is an incompletely understood clinical concept that implies pathomechanical changes in the hip as a cause for hiprelated pain in young adults. While a positive anterior impingement test is suggestive of FAI, its association with clinical and radiographic findings remain unconfirmed in healthy young adults. Questions/purposes We determined the prevalence of a positive test in 1170 young adults and examined its possible associations with (1) self-reported hip discomfort for the past 3 months; (2) weekly physical exercise; (3) hip ROM; and (4) radiographic findings associated with femoroacetabular impingement.Methods We invited 2344 healthy 19-year-olds to a population-based hip study between 2008 and 2009; 1170 patients (50%) consented. The study included questionnaires on medical and functional status, a clinical hip examination including the impingement test and hip ROM, and two pelvic radiographs (AP and frog-leg views).Results Based on at least one affected hip, 35 of 480 (7.3%) men and 32 of 672 (4.8%) women had positive impingement tests. Eighteen of the 1170 patients were excluded owing to suboptimal or missing radiographs. Self-reported hip discomfort in the women and increased physical exercise in the men were strongly associated with the positive impingement tests. Decreased abduction and internal rotation in the men, decreased flexion in both genders, and radiographic cam type findings in the men also were associated with positive tests.

“…The diagnosis of FAI was established based on the patients' history, clinical examination with a positive impingement sign [ 23 ], review of conventional AP pelvis and cross-table lateral hip radiographs [ 31,46 ], and radial MR arthrography. Allocation of hips into cam-, pincer-, or mixed-type FAI was based on parameters on plain radiographs.…”

Section: Methodsmentioning

confidence: 99%

What Are the Risk Factors for Revision Surgery After Hip Arthroscopy for Femoroacetabular Impingement at 7-year Followup?

Haefeli

Albers

Steppacher

et al. 2017