Ring-shaped lateral meniscus combined with an accessory meniscus: A rare anatomical variant.

A ring-shaped meniscus is a very rare anatomical variant among all meniscal abnormalities. Additionally, an accessory meniscus is extremely rare, and only a few cases have been reported. We herein report a case involving the combination of these two features in a single lateral meniscus.

Clinical and Radiological Changes after Microfracture of Knee Chondral Lesions in Middle-Aged Asian Patients.

Background: Although microfracture is widely accepted as an effective treatment option for knee chondral lesions, little is known about the deterioration of clinical outcomes and radiological progression in middle-aged patients. Therefore, this study was conducted to evaluate the clinical and radiological changes after microfracture of knee chondral lesions in middle-aged Asian patients.

Methods: A total of 71 patients were included in the study.

Posterior Horn Repair Augmented With the Central Portion of Thickened Meniscus for Large Posterolateral Corner Loss Type of Discoid Lateral Meniscus.

Large posterolateral corner loss type of discoid lateral meniscus tear is unsalvageable. Therefore, subtotal meniscectomy has been the only treatment option in this case. However, long-term results of subtotal or total meniscectomy have shown a high prevalence of early degenerative changes.

Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Autograft with Remnant Preservation: Comparison of Outcomes According to the Amount of Remnant Tissue.

There has been controversy about whether remnant tissue of anterior cruciate ligament (ACL) has to be preserved in ACL reconstruction. The purpose of the study was to compare clinical outcomes between groups of patients who underwent ACL reconstruction with bone-patellar tendon-bone (BPTB) autograft divided according to amount of ACL remnant and investigate effect of remnant preservation on outcomes of ACL reconstruction. A total of 185 patients who underwent ACL reconstruction with BPTB autograft were retrospectively reviewed.

Medial Meniscal Root Repair Using Curved Guide and Soft Suture Anchor.

Medial meniscal root tears have been repaired using various methods. Arthroscopic all-inside repair using a suture anchor is one of the popular methods. However, insertion of the suture anchor into the proper position at the posterior root of the medial meniscus is technically difficult.

Bone-patellar tendon-bone autograft could be recommended as a superior graft to hamstring autograft for ACL reconstruction in patients with generalized joint laxity: 2- and 5-year follow-up study.

Purpose: The present study aimed to compare 2- and 5-year outcomes of ACL reconstruction between patients with and without generalized joint laxity and to perform comparative evaluation between two types of grafts used for ACL reconstruction in patients with generalized joint laxity.

Methods: Two hundred and thirty-seven patients who underwent ACL reconstruction from 2001 to 2008 were included. Patients were classified into two groups according to the presence or the absence of generalized joint laxity, and further subdivided into two subgroups based on the type of graft used: bone-patellar tendon-bone (BPTB) or hamstring.

Minimum Two-Year Follow-up of Anterior Cruciate Ligament Reconstruction in Patients with Generalized Joint Laxity.

Background: The purposes of this investigation were to compare outcomes of anterior cruciate ligament (ACL) reconstruction between patients with generalized joint laxity and those without it and to investigate the effect of generalized joint laxity on outcomes of ACL reconstruction from 2 to 8 years postoperatively.

Methods: We retrospectively reviewed 163 patients who had undergone unilateral ACL reconstruction from January 2001 to December 2008. Patients were divided into 2 groups according to presence or absence of generalized joint laxity.

The percutaneous pie-crusting medial release during arthroscopic procedures of the medial meniscus does neither affect valgus laxity nor clinical outcome.

Purpose: To analyze the effect of percutaneous pie-crusting medial release on valgus laxity before and after surgery and on clinical outcomes.

Methods: Eight-hundred fourteen consecutive patients who underwent an arthroscopic procedure for the medial compartment of the knee were evaluated retrospectively. Sex, age, type of operation (meniscectomy, meniscal repair, and posterior root repair), type of accompanying surgery (none, cartilage procedure, ligament procedure and osteotomy) were documented.

Influence of knee flexion angle and transverse drill angle on creation of femoral tunnels in double-bundle anterior cruciate ligament reconstruction using the transportal technique: Three-dimensional computed tomography simulation analysis.

Background: The purpose of this study was to find appropriate flexion angle and transverse drill angle for optimal femoral tunnels of anteromedial (AM) bundle and posterolateral (PL) bundle in double-bundle ACL reconstruction using transportal technique.

Methods: Thirty three-dimensional knee models were reconstructed. Knee flexion angles were altered from 100° to 130° at intervals of 10°.

Relationship Between Preoperative Extrusion of the Medial Meniscus and Surgical Outcomes After Partial Meniscectomy.

Background: No previous study has examined arthritic change after meniscectomy with regard to extrusion of the medial meniscus.

Purpose: (1) To determine the factors related to preoperative meniscal extrusion; (2) to investigate the relationship between medial meniscal extrusion and postoperative outcomes of partial meniscectomy, and to identify a cutoff point of meniscal extrusion that contributes to arthritic change after partial meniscectomy in nonosteoarthritic knees.

Study Design: Cohort study; Level of evidence, 3.

The Results of Proximal Femoral Nail for Intertrochanteric Fracture in Hemodialysis Patient.

Purpose: Hip fractures in hemodialysis patients are accompanied by high rates of complications and morbidities. Previous studies have mainly reported on nonunion and avascular necrosis of femoral neck fractures in this patient group. In this study the complication and clinical results of hemodialysis patients with intertrochanteric fractures treated with proximal femoral intramedullary nailing have been investigated through comparison with patients with normal kidney function.

Lumbar Lordosis of Spinal Stenosis Patients during Intraoperative Prone Positioning.

Background: To evaluate the effect of spondylolisthesis on lumbar lordosis on the OSI (Jackson; Orthopaedic Systems Inc.) frame. Restoration of lumbar lordosis is important for maintaining sagittal balance.

The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration.

Study Design: Retrospective evaluation.

Purpose: To analyze the effect of T1 slope on degree of degeneration in patients with cervical disc degeneration.

Overview Of Literature: The T1 slope is well known parameter that may be very useful in evaluating sagittal balance.

Quality of Life Comparison between Vertebroplasty and Kyphoplasty in Patients with Osteoporotic Vertebral Fractures.

Study Design: Retrospective evaluation.

Purpose: To compare quality of life in postmenopausal women with osteoporotic vertebral fractures (OVFs) who underwent vertebroplasty (VP) or kyphoplasty (KP).

Overview Of Literature: Patient with OVFs who do not respond to conservative treatment can be treated with VP or ballon KP for faster pain relief.

Does decreased meniscal thickness affect surgical outcomes after medial meniscectomy?

Background: There have been no clinical studies regarding the effect of decreased meniscal thickness on outcomes after meniscectomy.

Purpose: To examine the postoperative outcomes of partial meniscectomy with or without horizontal resection compared with the outcomes of subtotal meniscectomy and to evaluate the influence of decreased thickness of the medial meniscus on outcomes after partial meniscectomy.

Study Design: Cohort study; Level of evidence, 3.

Effect of Cigarette Smoking on the Clinical Outcomes of ACL Reconstruction.

Background: We compared the clinical outcomes of nonsmokers, current smokers, and former smokers following reconstruction of the anterior cruciate ligament (ACL) and investigated the association between the amount of smoking and outcomes following ACL reconstruction.

Methods: We retrospectively reviewed the records of 251 patients who underwent unilateral ACL reconstruction with use of bone-patellar tendon-bone autograft between January 2002 and August 2009. Patients were divided into three groups according to smoking history: Group 1, nonsmokers; Group 2, current smokers; and Group 3, former smokers.

Does anterior laxity of the uninjured knee influence clinical outcomes of ACL reconstruction?

Background: The purpose of this study was to evaluate the association between the postoperative outcomes of anterior cruciate ligament (ACL) reconstruction and the anterior laxity of the uninjured knee.

Methods: We retrospectively reviewed 163 patients who had undergone unilateral ACL reconstruction from January 2002 to August 2009. Patients were divided into three groups according to the anterior laxity of the contralateral, normal knee in 30° of knee flexion as measured with a KT2000 arthrometer exerting a force of 134 N: <5 mm for Group 1, 5 to 7.

Graft selection in anterior cruciate ligament reconstruction for smoking patients.

Background: There has been no previous study regarding graft selection in anterior cruciate ligament (ACL) reconstruction for smoking patients.

Purpose: To compare the clinical outcomes of ACL reconstruction between smokers and nonsmokers and to find an optimal graft in ACL reconstruction with regard to clinical outcomes for smoking patients.

Study Design: Cohort study; Level of evidence, 2.

Arthroscopic repair of massive contracted rotator cuff tears: aggressive release with anterior and posterior interval slides do not improve cuff healing and integrity.

Background: Few studies of large-to-massive contracted rotator cuff tears have examined the arthroscopic complete repair obtained by a posterior interval slide and whether the clinical outcomes or structural integrity achieved are better than those after partial repair without the posterior interval slide.

Method: The study included forty-one patients with large-to-massive contracted rotator cuff tears, not amenable to complete repair with margin convergence alone. The patients underwent either arthroscopic complete repair with a posterior interval slide and side-to-side repair of the interval slide edge (twenty-two patients; Group P) or partial repair with margin convergence (nineteen patients; Group M).

Footprint contact restoration between the biceps-labrum complex and the glenoid rim in SLAP repair: a comparative cadaveric study using pressure-sensitive film.

Purpose: To compare pressurized footprint contact and interface pressure between the biceps-labrum complex and the superior glenoid rim after SLAP repair using 3 different techniques.

Methods: Twenty-four fresh-frozen human cadaveric shoulders were divided into 3 groups. SLAP lesions were repaired by (1) 2 single-loaded anchors in a simple suture configuration (group T), (2) a double-loaded anchor in a simple suture configuration in a V shape (group V), or (3) a double-loaded anchor by use of a hybrid simple and mattress suture configuration (group H).

Clinical outcomes for reconstruction of the posterolateral corner and posterior cruciate ligament in injuries with mild grade 2 or less posterior translation: comparison with isolated posterolateral corner reconstruction.

Background: There have been no previous studies showing clinical outcomes according to treatment options of posterior cruciate ligament (PCL) injury with mild grade 2 or less posterior translation (<7 mm) combined with posterolateral rotatory instability.

Purpose: To compare the clinical outcomes of posterolateral corner (PLC) reconstruction with or without simultaneous PCL reconstruction in PCL injuries with mild posterior translation.

Study Design: Cohort study; Level of evidence, 3.

Open accurate reduction for irreducible mallet fractures through a new pulp traction technique with primary tendon repair.

Sixteen patients with bony mallet fingers were treated by a new technique of open reduction through a T-shaped dorsal incision and oblique wire fixation via pulp traction with additional primary extensor repair. Surgical indications included fractures with intra-articular involvement over 1/3 of the articular surface, distal phalanx subluxation, and displacement greater than 3 mm irreducible by extension block pinning. The cases were analysed prospectively for a mean follow-up period of 12 months.

Chronic lateral ankle instability: the effect of intra-articular lesions on clinical outcome.

Background: There has been no attempt to correlate the type and number of intra-articular lesions with the results of ligament reconstruction for chronic lateral ankle instability.

Hypothesis: Certain intra-articular lesions affect the clinical outcome of ligament reconstruction.

Study Design: Case series; Level of evidence, 4.