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  • Title: Capsular Sparing Total Hip Replacement Technique Applied with a Dual-mobility Cup to Reduce Dislocations.
    Author: Bertram HM, Bertram ME, Scholl L, Bhowmik-Stoke M, Manley MT.
    Journal: Surg Technol Int; 2018 Nov 11; 33():289-293. PubMed ID: 30029291.
    Abstract:
    Regardless of the surgical approach used, dislocation remains a complication following total hip replacement. In recent years, newer technologies, such as the use of large femoral heads, have reduced the rate of postoperative dislocation. The combination of such technology, together with a soft tissue repair technique, may reduce the dislocation rate even further. A single surgeon performed 513 primary total hip replacements on 505 patients using a posterior approach utilizing a technique designed to spare the capsule. There were 257 males and 248 females. Age ranged from 39 to 92 years. Surgeries were performed from January 2012 to December 2015. Implants used were cementless dual-mobility cups and cementless femoral stems. In all cases, the posterior capsule was incised and retracted, but not excised. Following implant placement, the capsule was repaired using a fiber reinforced suture. The superior border of the capsular incision, just above the piriformis, was sutured to the superior capsule or gluteus minimus muscle. The intent of this repair was to completely incarcerate the femoral head. Patients were followed at two weeks, six weeks, three months, one year, three years, and five years. Follow up was one to five years post-implantation. The dislocation rate was zero. The combination of a large dual-mobility femoral head, combined with a soft tissue repair that spares the deep capsule, has the potential to significantly reduce dislocation rates when using the posterior approach to the hip.
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