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1.  Anterior Cruciate Ligament Reconstruction Using a Bone–Patellar Tendon–Bone Autograft to Avoid Harvest-Site Morbidity in Knee Arthroscopy 
Arthroscopy Techniques  2015;4(2):e179-e184.
Although anterior cruciate ligament reconstruction using a bone–patellar tendon–bone (BPTB) autograft has many advantages (e.g., high strength and solid fixation), there are also several complications (e.g., anterior knee pain or kneeling pain) due to harvest-site morbidity associated with the use of this graft type compared with the use of hamstring tendon. Therefore the ultimate goal of anterior cruciate ligament reconstruction using a BPTB graft is to minimize harvest-site morbidity. We have used a technique for harvesting central-third BPTB grafts that involves only a 3-cm-long, longitudinal, curved incision in the medial tibial tuberosity for both graft harvesting and fixation. The purpose of this report is to describe the technique, which can avoid the harvest-site morbidities associated with BPTB autografts during knee arthroscopy. We believe that this less invasive reconstruction may reduce the harvest-site morbidities associated with BPTB grafts because it allows for BPTB graft harvesting without incising the synovial bursa or paratenon and mitigates scarring and adhesion formation.
PMCID: PMC4454825  PMID: 26052497
2.  Subtrochanteric shortening osteotomy combined with cemented total hip arthroplasty for Crowe group IV hips 
Total hip arthroplasty (THA) is a challenging surgical procedure that can be used to treat severely dislocated hips. There are few reports regarding cemented THAs involving subtrochanteric shortening osteotomy (SSO), even though cemented THAs provide great advantages because the femur is generally hypoplastic with a narrow, deformed canal.
We evaluated the utility of cemented THA with SSO for Crowe group IV hips, and assessed the relationship between leg lengthening and nerve injury. Our goal was to describe surgical techniques for optimizing surgical outcomes while minimizing the risk of nerve injury.
We retrospectively reviewed 34 cases of cemented THAs with transverse SSO for Crowe group IV. Prior to surgery, mean hip flexion was 93.1° (40°–130°). The mean follow-up period was 5.2 years (3–10 years).
Bone union took an average of 7.7 months (3–24 months). Mean leg lengthening was 40.5 mm (15–70 mm) and was greater in patients without hip flexion contracture. None of the patients experienced any nerve injuries associated with leg lengthening, and radiographic evidence of loosening was not observed at the final follow-up.
SSO combined with cemented THA is an effective treatment for severely dislocated hips. Leg lengthening is not necessarily associated with nerve injuries, and the likelihood of this surgical complication may be related to the presence of hip flexion contracture.
PMCID: PMC3886399  PMID: 24121623
Subtrochanteric shortening osteotomy; Cemented total hip arthroplasty; Crowe group IV; Leg lengthening; Nerve injury
3.  Pigmented villonodular synovitis originating from the lumbar facet joint: a case report 
European Spine Journal  2007;16(Suppl 3):301-305.
The authors successfully treated a rare case of pigmented villonodular synovitis (PVNS) that originated from the lumbar facet joint (L4-5). A 43-year-old man presented with a complaint of left severe sciatica causing difficulty in walking. Magnetic resonance imaging (MRI) demonstrated an extradural mass on the left side at L4 and the mass compressed the dural tube and was continuous with the left L4-5 facet joint. A computed tomography myelogram revealed an extradural defect of contrast medium at the L4 level and an erosion of the L4 lamina. A total synovectomy with unilateral osteoplastic laminectomy was performed. The histological findings were a diagnosis of PVNS. The patient’s symptoms resolved completely and the MRI at postoperative 3 years demonstrated no recurrence of PVNS. It is important to totally remove the synovium, which is the origin of PVNS in order to prevent the recurrence. We think that our procedure is reasonable and adequate for lumbar PVNS.
PMCID: PMC2148097  PMID: 17566795
Pigmented villonodular synovitis; Lumbar spine; Synovectomy; Juxtafacet cyst; Laminoplasty

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