Misplaced Cervical Screws Requiring Reoperation.

Study Design: A multicenter, retrospective case series.

Objective: In the past several years, screw fixation of the cervical spine has become commonplace. For the most part, this is a safe, low-risk procedure.

Esophageal Perforation Following Anterior Cervical Spine Surgery: Case Report and Review of the Literature.

Study Design: Multicenter retrospective case series and review of the literature.

Objective: To determine the rate of esophageal perforations following anterior cervical spine surgery.

Methods: As part of an AOSpine series on rare complications, a retrospective cohort study was conducted among 21 high-volume surgical centers to identify esophageal perforations following anterior cervical spine surgery.

Anterior Cervical Infection: Presentation and Incidence of an Uncommon Postoperative Complication.

Study Design: Retrospective multi-institutional case series.

Objective: The anterior cervical discectomy and fusion (ACDF) affords the surgeon the flexibility to treat a variety of cervical pathologies, with the majority being for degenerative and traumatic indications. Limited data in the literature describe the presentation and true incidence of postoperative surgical site infections.

Rare Complications of Cervical Spine Surgery: Horner's Syndrome.

Study Design: A multicenter retrospective case series.

Objective: Horner's syndrome is a known complication of anterior cervical spinal surgery, but it is rarely encountered in clinical practice. To better understand the incidence, risks, and neurologic outcomes associated with Horner's syndrome, a multicenter study was performed to review a large collective experience with this rare complication.

Sagittal alignment as a predictor of clinical adjacent segment pathology requiring surgery after anterior cervical arthrodesis.

Background Context: Postoperative malalignment of the cervical spine may alter cervical spine mechanics and put patients at risk for clinical adjacent segment pathology requiring surgery.

Purpose: To investigate whether a relationship exists between cervical spine sagittal alignment and clinical adjacent segment pathology requiring surgery (CASP-S) following anterior cervical fusion (ACF).

Study Design: Retrospective matched study.

Comparison of TLIF with rhBMP-2 versus no TLIF and higher posterolateral rhBMP-2 dose at L5-S1 for long fusions to the sacrum with sacropelvic fixation in patients with primary adult deformity.

Study Design: Comparvative case series. Data was prospectively entered and retrospectively analyzed.

Objective: To evaluate the need for distal lumbar interbody fusion when sufficient recombinant human bone morphogenetic protein-2 (rhBMP-2) is used posterolaterally at L5-S1 in long spinal constructs for adult deformity via costs and radiographical and patient-reported outcome comparisons.

Surgical treatment of C3 and C4 cervical radiculopathies.

Study Design: Case series study.

Objective: To report the results of surgical intervention in a series of patients with high cervical radiculopathy.

Summary Of Background Data: Although midcervical (C5-C7) radiculopathy is common and well recognized, high cervical (C3 and C4) radiculopathy is relatively rare and can be missed clinically.

Elbow medial collateral ligament injuries.

Elbow medial collateral ligament sprain occurs when the elbow is subjected to a valgus force exceeding the tensile properties of the medial collateral ligament (MCL). This is an injury seen more often in throwing athletes. Understanding the differential diagnosis of medial elbow pain is paramount to diagnose MCL injury as well as addressing other medial elbow pathology.