Reconstruction of intraarticular distal radius malunion with 3D printed guide and arthroscopic assisted intraarticular osteotomy.

INTRODUCTION: Distal radius fractures are one the most common upper extremity injuries, accounting for 25 % of pediatric fractures and up to 18 % of elderly fractures. Intraarticular malunion is one major complication of distal radius fractures and was reported in 0 to 33 % of total cases. It usually causes pain, deformity, limited range of motion (ROM), and loss of strength. Therefore, proper surgical management to satisfactorily unite the fragment is necessary. Case Illustrations: This is a case series of three adult male and female patients diagnosed with intraarticular distal radius fracture with malunion. They had been diagnosed based on clinical and radiological examinations. Preoperative and postoperative QuickDASH and ROM were measured. Three-dimensional printing was created for planning the osteotomy. Osteotomy was performed using arthroscopy. All patients showed QuickDASH and ROM improvement in all wrist movements. DISCUSSION: The primary goal of the procedure was to restore normal anatomic alignment to improve wrist function and reduce pain. Osteotomy guided by arthroscopy planned by 3D printed surgical guide successfully reduced the malunion fracture. CONCLUSION: Osteotomy assisted by arthroscopy combined with the 3D-printed surgical guide is a promising technique to restore challenging intraarticular distal radius malunion.

Double suture-button reconstruction for chronic volar dislocation of distal radioulnar joint: A case report.

Introduction and importance: A distal radioulnar joint (DRUJ) dislocation is an uncommon occurrence. If not managed properly could result in severe functional impairment. Case Presentation: We report a case of a 45-year-old lady who was injured 6 months ago. She suffered a volar dislocation of the DRUJ and an ulnar head fracture. The DRUJ was stable after open reduction and reconstruction using suture-button technique. Discussion: Application of the first suture-button still result in positive ballottement with subluxation of ulnar head. Additional of second suture-button improved the stability and restored DRUJ motion. Conclusion: The double suture-button technique restored the DRUJ's stability and produced a good functional outcome.

Neglected congenital muscular torticollis: A case report.

Introduction: Congenital muscular torticollis (CMT) is identified as a thickening and/or stiffening of one side of the sternocleidomastoid muscle (SCM) due to muscle fibrosis. This condition results in shortening of SCM and constricted neck motion. Case presentation: A four-year-old girl came with neck muscle stiffness, tilted head to the left, and chin facing to the right presenting since birth. She was diagnosed with CMT at birth. The patient was born via spontaneous vacuum-assisted vaginal delivery. At three years old, the patient did brief conservative treatment. This patient was planned for unilateral sternocleidomastoid muscle release via bipolar tenotomy. Twelve months after the surgery, there were no complications or recurrence observed. Discussion: The etiology of CMT remains unknown to date, but recent studies suggest that early treatment of CMT produce better prognosis. The initial treatment for CMT is regular muscle stretching (physiotherapy), as well as education to the child's caregivers about the environmental changes and the child's posture. If the initial attempt fails, surgical intervention is needed. Conclusion: Early detection and early physiotherapy treatment will lead to minimize the risk of surgery. However, for cases that fail conservative therapy or neglected cases, it is recommended to carry out operative therapy to improve quality of life later.

Alkaline phosphatase, lactic dehidrogenase, inflammatory variables and apparent diffusion coefficients from MRI for prediction of chemotherapy response in osteosarcoma. A cross sectional study.

BACKGROUND: This present study aimed to assess if clinical, laboratory and MRI were an accurate benchmark in assessing the effectiveness of neoadjuvant chemotherapy in osteosarcoma patients. METHODS: This was an observational analytic study with a cross-sectional design. We correlated among clinical, laboratory and magnetic resonance imaging (MRI) data before and after neoadjuvant chemotherapy; and percentage of tumor necroses from osteosarcoma patients during the period between January 2017-July 2019. RESULTS: Of the 58 patients included in this study, 38 were male and 20 were female aged 5 - 67 years (mean: 16-year-old. 37(63.8%) patients underwent neoadjuvant chemotherapy with CAI regimens and 13 (36.2%) with CA regiments. The tumors were classified as stage IIB in 43 (74.1%) patients and stage III in 15 (25.9%) patients. Wilcoxon test showed significant differences between alkaline phosphatase (ALP), erythrocyte sedimentation rate (ESR), and neutrophil to lymphocyte ratio (NLR) before and after neoadjuvant chemotherapy in the poor-response group. We found no significant difference between lactic dehydrogenase (LDH) and lymphocyte-to-monocyte ratio (LMR) before and after neoadjuvant chemotherapy in the good-response group. MRI revealed decreased tumor volume in patients in the good-response to chemotherapy. CONCLUSION: We demonstrated that ALP level was statistically significant in the poor-response group. We also found that LDH value before neoadjuvant chemotherapy had a strong correlation with degree of necrosis and could be used as a predictive indicator. MRI plays an important role in evaluating tumor volumes and preoperative radiological changes to predict histological necrosis.

Recurrent traumatic atlantoaxial rotatory subluxation: Case report.

INTRODUCTION: Atlantoaxial rotatory subluxation (AARS) is not uncommon in paediatric emergencies, however, the complications might be fatal. Long onset before presentation is correlated with higher recurrence and persistent deformity. There is no consensus on the treatment of AARS yet. Selected patients may benefit from conservative approaches; however, retention might be difficult, and subluxation may recur. PRESENTATION OF CASE: A 6-year-old boy was admitted to our institution with AARS for three months before admission. Typical Cock-Robin position was observed. Computed tomography (CT) indicated AARS Fielding and Hawkins grade III. We treated the case conservatively by closed reduction and cervical traction using Gardner-Wells tongs. However, poor compliance resulted recurrence of subluxation, so we decided to fuse the atlantoaxial joint using transarticular screws, posterior wiring, and autologous bone grafting. Posterior fusion resulted in a satisfactory outcome, in which the wound healed accordingly. Six months of follow up examination revealed normal motoric and sensory function. The patient was able to perform daily activities with no significant issues. DISCUSSION: Patients with fixed deformity of more than three weeks have a higher rate for recurrence or persistent deformity, as reduction is harder and difficult to maintain. The use of posterior wiring alone is limited in maintaining reduction, while using transarticular screws alone is considered better in maintaining reduction; however, not providing it. CONCLUSION: The use of posterior cervical fusion using C-wire, transarticular screws, and autologous bone grafting may be applied in recurrent case of AARS to ensure adequate reduction and fixation of the atlantoaxial joint.

Replantation at the level of the wrist joint: A case report.

Upper extremities amputations are devastating injuries that have a major impact on patients' quality of life. Replantation after traumatic amputation is often performed to obtain limb recovery. Following the high survival rate of replantation of post-traumatic hand amputation, recent emphasis has now shifted to functional recovery rather than survival only. Wrist replantation remains a challenging procedure for orthopaedic and hand surgeon. We reported a case of a 25-year-old male with traumatic amputation of the right hand.

Reconstruction giant cell tumor of the right proximal humerus Campanacci 3 with pedicle and rod system: A case report.

INTRODUCTION: Giant Cell tumors (GCT) are benign tumors with potential for aggressive behavior and capacity to metastasize. Although considered to be benign tumors of bone, GCT has a relatively high recurrence rate. Tumor often extends to the articular subchondral bone or even abuts the cartilage. The joint and/or its capsule are rarely invaded. Surgical resection is the universal standard of care for the treatment of bone GCT. The key ensuring an adequate surgical treatment with complete removal of tumor is by obtaining adequate exposure of the lesion. PRESENTATION OF CASE: We reported a case of 24-years-old male with Giant cell tumor (GCT) of the right proximal humerus. Patient presented with chief complaint of pain on the right shoulder and had a history of fell on the right elbow. Radiographic examination showed a primary bone tumor of the proximal humerus. MRI provided excellent depiction in suggesting the diagnosis of cutaneous GCT Campanacci 3, which was later, affirmed by biopsy. Patient underwent successful wide excision and reconstruction. The limb salvage procedure consisted of shoulder resection type 1B and reconstruction with pedicle screw and rod system. During 5 days post-operative period, there was no major event observed. Patient could do shoulder flexion forward 0-30, shoulder extension 0-20, elbow extension - Flexion, wrist flexion extension, and fingers flexion. DISCUSSION: GCT of bone typically shown as an epiphyseal, eccentric, expansive lytic lesion with a 'soap-bubble appearance'. MRI is useful to assess extracortical spread and intramedullary extension. Surgery is the treatment of choice. Curettage is usually combined with cementing or bone grafting. Hemi-articular and total elbow allografts have been used for reconstruction of the defects following tumor excision, but the complication rates are high, and these techniques are reserved as salvage procedures following failed total elbow arthroplasty. CONCLUSION: Wide resection and total elbow arthroplasty enables good functional outcome and lower risk for recurrence. Pedicle and rod system for shoulder reconstruction is a viable option, as it provides good pain relief and functional improvement with lower complication rates.