Development and validation of a prognostic nomogram for open elbow arthrolysis : the Shanghai Prediction model for Elbow Stiffness Surgical Outcome.

Aims: The aim of this study was to develop and internally validate a prognostic nomogram to predict the probability of gaining a functional range of motion (ROM ≥ 120°) after open arthrolysis of the elbow in patients with post-traumatic stiffness of the elbow.

Methods: We developed the Shanghai Prediction Model for Elbow Stiffness Surgical Outcome (SPESSO) based on a dataset of 551 patients who underwent open arthrolysis of the elbow in four institutions. Demographic and clinical characteristics were collected from medical records.

Osteochondral Autograft From the Hamate for Treating Partial Defect of the Proximal Interphalangeal Joint.

Purpose: The management of a proximal interphalangeal (PIP) joint fracture dislocation becomes more challenging when the joint surface is damaged because of severe comminution or inadequate treatment in the acute phase. The purpose of this study was to evaluate the clinical outcomes of an osteochondral autograft for the reconstruction of the joint surface in patients with a partial PIP joint defect.

Methods: Twelve patients underwent osteochondral autograft surgery from May 2007 to July 2018.

Heterotopic Ossification after Arthroscopic Elbow Release.

Objectives: To evaluate the incidence and risk factors of heterotopic ossification (HO) after arthroscopic elbow release.

Methods: The present study included 101 elbows, with arthroscopic release performed on 98 patients over the 5-year period from November 2011 to December 2015. Patients were divided into three groups: group 1, with elbow arthritis, including 46 elbows in 43 patients; group 2, with posttraumatic extrinsic elbow stiffness (without intraarticular adhesion), including 23 elbows in 23 patients; and group 3, with intrinsic contractures (with intraarticular adhesion), including 32 elbows in 32 patients.

Arthroscopic Treatment of Posttraumatic Elbow Stiffness Due to Soft Tissue Problems.

Objectives: To evaluate the effectiveness of arthroscopic management of posttraumatic elbow stiffness due to soft tissue problems.

Methods: A retrospective review of 30 consecutive arthroscopic elbow releases for posttraumatic stiff elbow from November 2011 to December 2019 was conducted. Stiff elbows with bony problems, such as heterotopic ossification, intraarticular nonunion or malunion, and cartilage lesions were excluded from this study.

Intra-articular Osteotomy for Malunited Proximal Interphalangeal Joint Fracture.

Background: Intra-articular malunion of the proximal interphalangeal joint is challenging. Multiple treatment options vary from arthrodesis to different types of osteotomy procedures. The aim of this study was to evaluate the effectiveness of intra-articular osteotomy in treating malunited proximal interphalangeal (PIP) joint fractures.

Downregulation of miR-223 and miR-19a induces differentiation and promotes recruitment of osteoclast cells in giant-cell tumor of the bone via the Runx2/TWIST-RANK/RANKL pathway.

Giant-cell tumor (GCT) of the bone is an invasiveness and high recurrent bone tumor that is considered borderline or potentially malignant. To explore the molecular mechanism leading to bone destruction and identify novel targets for treatment, we conducted silencing of miR-223 and miR-19a in stromal giant cells and identified TWIST and Runx2 as their target genes. We investigated the impact of these microRNAs and their target genes on stromal giant cells that promote the differentiation of monocyte/macrophages into osteoclast cells and recruitment to the bone microenvironment, which in turn enhances the bone destruction capacity of GCT.

Morphological Detection and Functional Assessment of Regenerated Nerve after Neural Prosthesis with a PGLA Nerve Conduit.

This study aimed to observe the morphological characteristics of a PGLA [poly(glycolide-co-L-lactide)] nerve conduit and regenerated nerve bundle in the human body using high-frequency ultrasound and examine functional recovery of the regenerated nerve using functional magnetic resonance imaging (fMRI) after neural prosthesis with a PGLA nerve conduit. Thirty-nine patients underwent high-frequency ultrasound, and one patient with superficial radial nerve injury (27-mm defect) underwent fMRI at one, three, and six postoperative months. The fMRI examination results were compared with sensory detection and high-frequency ultrasound results during the same follow-up window period.

Distraction Lengthening Following Vascularized Second Toe Transfer for Isolated Middle Finger Reconstruction.

Purpose: We report the use of distraction lengthening of the middle phalanx after vascularized second toe transfer for middle finger reconstruction to lengthen the digit to match the index and ring fingers.

Methods: We performed a retrospective review of 3 patients with a mean follow-up of 30 months.

Results: A mean increase of 2.

Comparison of two electrophysiological methods for the assessment of progress in a rat model of nerve repair.

There are 2 critical steps in neural regeneration: nerve fibres successfully crossing the suture and restoration of neuromuscular transmission. For the second step, the compound muscle action potential (CMAP) is the standard electrophysiological technique used to assess regeneration, but it is difficult to detect changes in the CMAP during early regeneration after nerve repair. There is a need for better, noninvasive quantitative electrophysiological techniques to assess regeneration in an earlier stage after nerve repair.

Combined nerve transfers for repair of the upper brachial plexus injuries through a posterior approach.

The upper brachial plexus injury leads to paralysis of muscles innervated by C5 and C6 nerve roots. In this report, we present our experience on the use of the combined nerve transfers for reconstruction of the upper brachial plexus injury. Nine male patients with the upper brachial plexus injury were treated with combined nerve transfers.

Modification of the pull-in suture technique for mallet finger.

Introduction: Mallet finger injuries are common and involve disruption of the terminal extensor mechanism overlying the distal interphalangeal joint. Many operative techniques have been advocated. The pull-in suture technique is a useful surgical procedure for the treatment of mallet finger.

[Short-term efficacy of multiple nerves branch transfer for treating superior trunk brachial plexus in jury].

Objective: To recover the loss of the shoulder and elbow function after superior trunks injury of brachial plexus through multiple nerves branch transfer simultaneously near the nerve entering points of recipient nerves.

Methods: Four male patients (aged 21-39 years) with superior trunks injury of brachial plexus were treated from February to September 2007. All cases were injured in the traffic accident, left side in 1 case and right side in 3 cases, resulting in the loss of shoulder abduction, shoulder extorsion, shoulder lift and elbow flexion, and the increase of muscle strength of shoulder shrug, elbow extension and finger flexion to above or equal to 4th grade.

[Clinical significance of electrophysiological dominance analysis of triceps brachii muscle/extensor digitorum communis muscle innervation in ipsilateral C7 transfer].

Objective: To analysis the electrophysiological dominance weight of the triceps brachii muscle/extensor digitorum communis muscle innervated by brachial plexus and to conclude its effect on the ipsilateral C7 transfer so as to offer electrophysiological data for the safety and indication of ipsilateral C7 transfer.

Methods: From August 2007 to October 2007, 15 patients with complete brachial plexus nerve root avulsion received contralateral C7 transfer. There were 13 males and 2 females aged 18-49 years (28 years on average).

Contralateral C7 transfer via the prespinal and retropharyngeal route to repair brachial plexus root avulsion: a preliminary report.

Objective: We sought to investigate a shorter and safer route for contralateral C7 transfer.

Methods: Eight male patients were treated from December 2005 to November 2006. Their ages ranged from 22 to 43 years (average, 30 yr).

Hand prehension recovery after brachial plexus avulsion injury by performing a full-length phrenic nerve transfer via endoscopic thoracic surgery.

Object: The functional recovery of hand prehension after complete brachial plexus avulsion injury (BPAI) remains an unsolved problem. The authors conducted a prospective study to elucidate a new method of resolving this injury.

Methods: Three patients with BPAI underwent a new procedure during which the full-length phrenic nerve was transferred to the medial root of the median nerve via endoscopic thoracic surgery support.

Full-length ulnar nerve harvest by means of endoscopy for contralateral C7 nerve root transfer in the treatment of brachial plexus injuries.

Background: To avoid long scar formation after contralateral C7 transfer for treatment of brachial plexus avulsion injuries, endoscopy was used for full-length harvest of the ulnar nerve. The surgical procedure and its clinical effect are reported here.

Methods: From July to August of 2001, two patients with total root avulsion were recruited.