Outcomes of the Posterior Approach for the Treatment of Radial Head Fractures and Associated Elbow Injuries: A Retrospective Observational Study

BACKGROUND

The lateral approach to the radial head remains the routinely used approach for surgical fixation or replacement despite the risk of injury to lateral soft tissue structures. Multiple approaches are required when dealing with complex elbow injuries involving other bony and soft tissue structures which lead to greater soft tissue dissection, prolonged immobilization, and a higher rate of elbow stiffness. This article utilizes a single posterior approach involving the Boyd interval in the surgical management of radial head fractures with an associated elbow injury.

METHODS

Thirteen patients with radial head fractures and related elbow injuries treated with the posterior approach to the elbow were retrospectively analyzed. All patients were operated on by a single surgeon and followed up for a minimum of 18 months postoperatively. Functional evaluation of the patients was performed at the final follow-up which comprised a range of movements of the elbow, visual analogue scale (VAS), Disability of Arm, Shoulder, and Hand (QuickDASH), and the Mayo Elbow Performance Score (MEPS).

RESULTS

The mean VAS score was 2.16, QuickDASH score, and Mayo elbow score were 7.15 ± 2.96 and 78.46 ± 8.26 respectively. The flexion-extension arc of the elbow was 128.46 ± 4.27 degrees and the supination-pronation arc was 133.92 ± 4.04 degrees at one-year follow-up. Two patients developed early postoperative complications (elbow stiffness and ulnar nerve neuropraxia) and recovered spontaneously. No patients developed neuropraxia of the posterior interosseous nerve (PIN).

CONCLUSION

The single incision posterior (Boyd) approach to the elbow offers complete access to the radial head, olecranon, coronoid, and lateral ligamentous structures in complex elbow injuries and provides good functional outcomes in our small observational study.

A Case of Idiopathic Thoracic Spinal Subdural Hematoma With Bilateral Lower Limb Paralysis

Subdural hemorrhage is rare and is mostly triggered non-traumatically due to intracranial surgery, lumbar puncture, anticoagulant therapy, blood diseases, vascular malformations, and tumors. We experienced a case of idiopathic subdural hematoma with acute bilateral lower limb paralysis on postoperative day 4 after laparoscopic hysteromyomectomy.

The patient was a 40-year-old woman with uterine myoma who took no medication nor had history of trauma or abnormalities such as vascular malformations. Four days after laparoscopic surgery, sudden chest and back pain and bilateral lower limb paralysis appeared. Muscle weakness was found predominantly on the left side. In manual muscle test (MMT), the quadriceps femoris was 5/5 on both sides, but the tibialis anterior, extensor pollicis longus and flexor pollicis longus were 5/5 only on the right, and 2/5 on the left side. Warm pain sensation was decreased below Th4 (Fourth thoracic vertebra), and the right side showed a greater decrease of deep sensation than the left. Excretion was difficult and dysuria was also apparent. There were no abnormalities in blood biochemical tests or in the blood coagulation system. Using the results of diagnostic imaging, as preoperative diagnosis of the patient, spinal subdural hematoma was suspected. Conservative treatment was initially conducted but the emergency surgery for hematoma removal was performed at 14 hours after the onset because of progression of paralysis. This resulted in improvement of neurological symptoms including lower limb paralysis, bladder-rectal disorder and hypoesthesia.

If subdural hematoma is suspected regardless of the cause, it is important to observe neurological findings over time and make a quick decision to treat with surgery.