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Greater Trochanteric Pain Syndrome: An Intraoperative Endoscopic Classification System with Pearls to Surgical Techniques and Rehabilitation Protocols.

ABSTRACT: Over the past decade, understanding of disorders compromising greater trochanteric pain syndrome (GTPS) has increased dramatically. Nonsurgical treatment options include physical rehabilitation and activity modification, anti-inflammatory as well as biologic injections into the peritrochanteric compartment, and administration of oral analgesics. Multiple open and endoscopic treatment options exist when nonsurgical management is unsuccessful in patients with refractory lateral-sided hip pain, with or without weakness. No true consensus exists within the literature regarding operative techniques of GTPS or postoperative rehabilitation protocols. We present an endoscopic classification system of GTPS with 5 distinct types, which seems to correlate well with preoperative diagnoses and postoperative rehabilitation protocols. The classification system is intuitive, and the corresponding surgical techniques are reproducible for surgeons treating peritrochanteric pathology. Level of Evidence: I (hip); II (extra-articular, impingement).

SUBMITTER: Lall AC

PROVIDER: S-EPMC6823867 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:PurposeLegg-Calvé-Perthes disease often leads to greater trochanteric overgrowth, which negatively affects the biomechanics of the hip joint. This study aimed to evaluate the physiologic growth of the greater trochanter and the effectiveness of greater trochanteric epiphysiodesis radiographically.MethodsRetrospectively, 46 children (33 male, average age at greater trochanteric epiphysiodesis 8 ± 1.3 years) with unilateral Legg-Calvé-Perthes disease undergoing greater trochanteric epiphysiodesis with screws and curettage of the epiphysis were included. On radiographs of the pelvis pre- and postoperatively (mean follow-up 3.5 years), trochanteric height, articulotrochanteric distance, and center-trochanter distance were determined and compared to the unaffected side. Reference values for the physiological development of trochanteric height, articulotrochanteric distance, and center-trochanter distance over time were established.ResultsGreater trochanteric epiphysiodesis reduced trochanteric growth by 29% measured by trochanteric height, but only statistically significant in the group "<8 years" (p = 0.02). Regression analysis revealed inhibition of trochanteric growth of 0.92 mm/year. Both articulotrochanteric distance and center-trochanter distance of the affected and unaffected side converged during the follow-up period: articulotrochanteric distance of the affected hip increased (preop: 11.2 ± 7 mm, maturity: 18.5 ± 10 mm; p < 0.01) compared to no change on the unaffected side (preop: 19.3 ± 5 mm, maturity: 18 ± 6 mm; p = 0.69). Center-trochanter distance of the affected hip stayed unchanged (preop: (-7.9) ± 7 mm, maturity: (-7.8) ± 9 mm; p = 0.13). On the unaffected side, center-trochanter distance became negative (preop: 0.9 ± 6 mm, maturity: (-6.5) ± 5 mm; p < 0.001). Measured by articulotrochanteric distance and center-trochanter distance, 31.8% achieved an optimal result.ConclusionGreater trochanteric epiphysiodesis has a positive effect on greater trochanter growth and therefore on hip anatomy. Further studies must show whether these positive effects also result in biomechanical and functional benefits.Level of evidencelevel III.

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Greater Trochanteric Pain Syndrome: An Intraoperative Endoscopic Classification System with Pearls to Surgical Techniques and Rehabilitation Protocols.

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