[Treatment strategies for the combination of hip dysplasia, femoroacetabular impingement and malrotation of the proximal femur : How much should be corrected?]

Vuillemin, Nicolas; Steppacher, Simon D; Meier, Malin K; Büchler, Lorenz (2022). [Treatment strategies for the combination of hip dysplasia, femoroacetabular impingement and malrotation of the proximal femur : How much should be corrected?]. Die Orthopädie, 51(6), pp. 438-449. Springer 10.1007/s00132-022-04252-7

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BACKGROUND

Hip dysplasia, FAI and femoral malrotation often occur together, resulting in mixed symptoms and severe biomechanical limitations of the hip.

OBJECTIVES

To report on the current recommendations for the best possible diagnosis and treatment strategies of combination pathologies in hip-preserving surgery.

METHODS

Review and discussion of the relevant literature with consideration of own experience in the treatment of complex combined pathomorphologies of the hip.

RESULTS

Patient history and a thorough clinical examination are key for determining the predominant pathomorphologies causing the symptoms. Standardized conventional ap pelvic and axial images of the hip are the basis for the radiological assessment of the hip, supplemented with MRI, CT and animations of the hip, depending on the case. As the pathologies influence each other functionally, a stepwise approach to treatment is recommended. The functionally most relevant pathology is treated first, followed by further corrections as needed. The primary goal is to achieve a stable hip with normal acetabular coverage, followed by an impingement-free range of motion and normalized musculoskeletal function. Care must be taken in the choice of surgical method to ensure that all pathologies can be adequately treated.

CONCLUSION

Complex, combined pathologies of the hip can be treated sufficiently with hip-preserving surgery. A thorough diagnosis is important in order to recognize the functional interaction of the different pathologies. The goal of the surgical therapy is a correctly covered, stable hip with a normal range of motion.

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