MRI Shows Biologic Restoration of Posterior Soft Tissue Repairs after THA
| Autor: | Li Foong Foo, Friedrich Boettner, Paul M. Pellicci, Hollis G. Potter |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Adult
Male medicine.medical_specialty Greater trochanter Soft Tissue Injuries Arthroplasty Replacement Hip medicine.medical_treatment Prosthesis Tendons Tendon Injuries medicine Hip Dislocation Humans Orthopedics and Sports Medicine Prospective Studies Range of Motion Articular Aged Wound Healing medicine.diagnostic_test business.industry Soft tissue Magnetic resonance imaging General Medicine Middle Aged Magnetic Resonance Imaging Arthroplasty Surgery Tendon Muscular Atrophy medicine.anatomical_structure Orthopedic surgery Female Original Article Range of motion business |
| Zdroj: | Clinical Orthopaedics and Related Research. 467:940-945 |
| ISSN: | 1528-1132 0009-921X |
| DOI: | 10.1007/s11999-008-0503-1 |
| Popis: | Although posterior capsule repair reduces the incidence of dislocation after THA, radiographic imaging studies suggest a high failure rate of the repair. Using MRI, we prospectively followed patients to evaluate the integrity of the posterior soft tissue repair after primary THA. Thirty-six patients (21 men, 15 women) underwent arthroplasty using a standard posterior approach. The posterior capsule and external rotators were repaired as separate layers using nonabsorbable sutures through two drill holes in the greater trochanter. Patients observed postoperative hip precautions for 6 weeks after surgery. All patients underwent initial MRI between postoperative Days 2 and 4. Thirty patients returned for followup MRI 3 months after surgery. At 3 months followup, the posterior capsule remained intact in 27 of 30 patients (90%) and the quadratus femoris repair remained intact in 29 of 30 patients (97%). Thirteen of 30 piriformis tendon repairs (43%) and 17 conjoined tendon repairs (57%) showed a gap between the hypointense tendon end and the greater trochanter greater than 25 mm. Our data show repaired posterior soft tissues provide a biologic scaffold allowing formation of a posterior pseudocapsule. |
| Databáze: | OpenAIRE |
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