Risk factors of transport gap bending deformity in the treatment of critical-size bone defect after bone transport.

Background: The purpose of this study was to investigate the risk factors of transport gap bending deformity (TGBD) in the treatment of critical-size bone defect (CSBD) after the removal of the external fixator.

Methods: From January 2008 to December 2019, 178 patients with bone defects of the lower extremity caused by infection were treated by bone transport using a unilateral external fixator in our medical institution. TGBD was defined as the bone callus in the distraction area with a deviation to the force line of the femur (> 10°) or tibia (> 12°) after removal of the external fixator.

Bone Defects in Tibia Managed by the Bifocal vs. Trifocal Bone Transport Technique: A Retrospective Comparative Study.

Background: The purpose of this study is to evaluate the clinical effectiveness and determine the differences, if any, between the trifocal bone transport (TFT) technique and the bifocal bone transport (BFT) technique in the reconstruction of long segmental tibial bone defects caused by infection using a monolateral rail external fixator.

Methods: A total of 53 consecutive patients with long segmental tibial bone defects caused by infection and treated by monolateral rail external fixator in our department were retrospectively collected and analyzed from the period January 2013 to April 2019, including 39 males and 14 females with an average age of 38.8 ± 12.

[Application of free transverse gracilis myocutaneous flap for soft tissue defects of foot and ankle].

Objective: To investigate the effectiveness of free transverse gracilis myocutaneous flap for soft tissue defects of foot and ankle.

Methods: Between January 2017 and December 2020, 16 cases (17 feet) of soft tissue defects of foot and ankle were repaired with free transverse gracilis myocutaneous flaps. There were 10 males and 6 females, with an average age of 38 years (range, 23-60 years).

The ideal harvest time for seed production in maize (Zea mays L.) varieties of different maturity groups.

Background: The correct time for harvesting is a key factor contributing to the production of high-quality maize seeds. We conducted field experiments to harvest seeds at 11 developmental stages for 3 years, to investigate seed vigor traits in three early maturity maize varieties and two late maturity varieties in one location.

Results: Significant correlations (r = 0.

[Application of Keystone flap in the repair of soft tissue defect of lower extremity].

Objective: To study the effectiveness of Keystone flap in the repair of soft tissue defect of lower extremity.

Methods: The clinical data of 27 cases with soft tissue defects of lower extremity treated by Keystone flap between January 2018 and June 2020 were retrospectively analyzed. There were 18 males and 9 females, with an average age of 43.

The stimulative function of long noncoding RNA CDKN2B-AS1 in osteosarcoma by targeting the microRNA-122/CCNG1 axis.

Osteosarcoma (OS), a prevalent aggressive malignancy in the bone, has limited therapeutic targets and diagnostic biomarkers. In the current investigation, RT-qPCR showed that CDKN2B-AS1 was enhanced in OS samples and cells. This research was set to examine the modulation of CDKN2B-AS1 in OS.

Reconstruction of Soft Tissue Defects and Bone Loss in the Tibia by Flap Transfer and Bone Transport by Distraction Osteogenesis: A Case Series and Our Experience.

Objective: The aim of this study is to evaluate the clinical outcome of flap transfer followed by delayed bone transport using external fixator on the soft tissue defect with segmental tibial loss.

Methods: A total of 14 patients with soft tissue defects and bone loss were treated with flap transfer combined followed by delayed bone transport using external fixator from January 2010 to January 2017 and, successfully, follow-up were included. Demographic data and data on clinical outcomes and complications were obtained from hospital record.

Bifocal or Trifocal (Double-Level) Bone Transport Using Unilateral Rail System in the Treatment of Large Tibial Defects Caused by Infection: A Retrospective Study.

Objective: The aim of this study is to assess the clinical results of bifocal or trifocal bone transport using unilateral rail system in the treatment of large tibial defects caused by infection.

Methods: There were a total of 37 eligible patients with an average age of 40.11 ± 10.

Outcomes of revision neurolysis of the ulnar nerve and ulnar groove plasty for persistent and recurrent cubital tunnel syndrome-A retrospective study of 21 cases.

Background: Patients undergoing revision surgical treatment of the ulnar nerve at the elbow for cubital tunnel syndrome (CuTS) will have worse results compared to patients successfully treated with primary surgery.

Objective: The purpose of this study is to evaluated clinical outcomes of revision neurolysis and ulnar groove plasty for recurrent and persistent cubital tunnel syndrome after failed surgical treatment.

Methods: This retrospective investigation included patients presented with recurrent and persistent CuTS who were treated surgically with combination of revision neurolysis and ulnar groove plasty at a single institution from May 2006 to Oct 2016 with postoperative follow-up more than 24 months.

[ANTERIOR SUBCUTANEOUS TRANSPOSITION OF ULNAR NERVE AND HAND INTRINSIC MUSCLES FUNCTION RECONSTRUCTION FOR SEVERE CUBITAL TUNNEL SYNDROME].

Objective: To study the effectiveness of anterior subcutaneous transposition of ulnar nerve with reconstruction of hand intrinsic muscle in the treatment of severe cubital tunnel syndrome.

Methods: Between March 2006 and May 2015, 22 cases (23 hands) of severe cubital tunnel syndrome were treated by use of anterior subcutaneous transposition of ulnar nerve with reconstruction of hand intrinsic muscle. There were 15 males and 7 females, aged 45-60 years (mean, 55 years).

[Preliminary clinical application of cancellous granule-type calcium phosphate cement].

Objective: To investigate the clinical efficacy of the cancellous granule-type calcium phosphate cement in repair bone defect.

Methods: Between July 2008 and July 2009, 35 patients (42 limbs) with fractures, nonunion, and benign bone tumor were treated with cancellous granule-type calcium phosphate cement. There were 32 males and 3 females, with an age range from 9 to 73 years (median, 41 years), including 24 limb fractures (19 cases), 4 osteotomy for deformity of ulna and radius (2 cases), 2 femur intertrochanteric bony cysts (2 cases), 3 enchondroma (3 cases), 5 bone defect at donor ilium (5 cases), 3 nonunion (3 cases), and 1 lumbar spinal stenosis (1 case).