[1] The hospital had a 24-hour policlinic receiving trauma patients from the Helsinki capital area and occasionally from the entire region of Southern Finland.

After a suitable lot was found in Taka-Töölö and funding was secured, planning of the hospital could begin.

The hospital building, clad entirely in white, was built in 1932 designed by architect Jussi Paatela.

After Brofeldt's death he was succeeded by docent Aarno Snellman, who remained as the hospital's head surgeon until it was no longer needed.

For this purpose, after the first wave of bombing in the war, it was helped by auxiliary hospitals, including the Kalastajatorppa restaurant building.

After the February 1944 bombings the hospital activities were spread out into temporary facilities, including the Meltola sanatorium, the Workers' institute, the Jorvi manor and Vestankvarn in Inkoo.

Even after the war the hospital's major function was to tend to trauma patients, but it still served as a general surgical facility up to 1960.

The trauma care station was expanded into premises originally belonging to the blood transfusion service of the Finnish Red Cross in 1966.

At the same time, the hospital's X-ray surgeon doctor Yrjö Lassila studied neuroradiology taught by Olivecrona's coworker, radiologist Eric Lysholm.

Before the Winter War and immediately after it a few younger doctors, such as Mikko Eirto and Gunnar af Björkesten - later the first professor of neurosurgery at the University of Helsinki - had the chance to study neurosurgery and adapt their learning to treatment of brain and nerve trauma during the Continuation War.

The function of the neurosurgical department advanced through the significant experience gained from skull and brain injuries during the war.

During the entire war, a care department for brain injury patients was active at the civil protection premises in the hospital, led by Snellman and Teuvo Mäkelä.

The blood donation service worked in these basic premises for over a quarter of a century until the Red Cross received a new specially built hospital building in Kivihaka.